Dendrobium

This genus is here revised in accordance with the admirable monograph recently published by Messrs. James Veitch and Sons, in Part III. of their "Manual of Orchidaceous Plants." To the species, varieties, and hybrids described on pp. 452-8, Vol. I., the following should now be added: D. aemulum (emulous). fl. white, fragrant, 1 1/2in. across, the apical half of the segments sometimes stained pale yellow; sepals narrow-lanceolate; petals linear; lip very short, three-lobed, the side lobes acute, spotted pink, the middle one reflexed; racemes terminal, lax, five to seven-flowered. Stems terete, 2in. to 4in. or more in length, sometimes tapering to a long, thin base with a small pseudo-bulb, and bearing at their summit two or three very coriaceous leaves. Australia. (B. M. 2906; F. A. O. i., part ii. 5.) D. Ainsworthii roseum (rosy). fl. deeper-coloured than in the type; sepals and petals rosy-magenta; lip amaranth-crimson, with a dark spot, feathered at the edge, veined deeper crimson. February and March. (W. O. A. i. 20.) D. amethystoglossum (amethyst-lipped). fl. ivory-white except the amethyst-purple anterior lobe of the lip, crowed, about 1in. in diameter; sepals and petals ovate-oblong, acute; lip elongated, linear-spathulate, apiculate, convex in the middle, incurved at the margins except towards the apex; spur long, obtuse; column exposed; racemes 3in. to 5in. long, many-flowered. January and February. l. sessile, oval-oblong, sub-acute. Stems robust, sometimes 2ft. to 3ft. high and nearly 1in. thick. Philippine Islands, 1872. (B. M. 5968.) D. antelope (antelope-horned). fl. yellowish; sepals ligulate-triangular, acute; petals long, antenniform, upright, painted sepia inside; lip striped and speckled mauve, the square anterior lacinia having its abrupt apiculus short. Moluccas, 1883. Stove.
D. arachnites (cobwebby). fl. bright cinnabar-red, in fascicles of two or three, but sometimes solitary, 2 1/2in. across when spread out; sepals and petals linear, acute; lip veined purple, shorter than the other segments, sub-pandurate, convolute over the column at the base; column very short. l. linear-lanceolate, acute, 1 1/2in. to 2 1/2in. long. Stems terete, 2in. to 3in. long. Moulmein, 1874. Very rare in cultivation. D. aurantiacum (orange). A synonym of D. aureum aurantiacum. D. aureum album (white). fl. very pale, nearly white. D. a. aurantiacum (orange). fl. orange-yellow. The richest-coloured of all the varieties. SYN. D. aurantiacum.
D. a. Henshalli (Henshall's). fl., lip white, suffused yellow at base, where there are two reddish-purple spots. (B. M. 4970, under name of D. heterocarpum Henshalli.) D. a. pallidum (pale). fl. sometimes smaller than in the type; lip white, with the exception of a yellow stain at base. Stems longer and slenderer. (B. R. 1839, 20.) D. bracteosum (bracteate). fl. purple, with a yellow lip, marked reddish on the front margins, grouped in capitate masses; sepals triangular-keeled, the spur about two-fifths the length of the free part of the lateral sepals, rather blunt; petals narrower, oblong, acute; lip nearly spathulate, a little convex on the upper sides, much thicker at the base; bracts nearly as long as the flowers. New Guinea, 1886. (L. ii. 74.) D. Brymerianum histrionicum (actor). fl., lip having "sometimes a beard, sometimes none, like a comedian." Autumn.
D. calamiforme (Calamus-like). A synonym of D. teretifolium. D. Calceolaria (Calceolaria-like). This is now regarded as a variety of D. moschatum.
D. capillipes (hair-stemmed). fl. bright golden-yellow, in short racemes. h. 6in. Moulmein. A curious species, resembling a pigmy form of D. albo-sanguineum. It succeeds on a block or in a basket. (R. X. O. ii. 169, f. 4-6.) D. cariniferum lateritium (brick-red). fl., sepals light yellow; petals white; lip brick-red, with a yellowish front lobe. 1883.
D. c. Wattii (Watt's). fl. larger than in the type, white, with parts of the lip yellow, the middle lobe of the lip longer than in the type, two-lobed. l. narrower, with nearly smooth sheaths. (B. M. 6715.) D. chloropterum (green-winged). fl., sepals and petals light green, streaked red outside, and with broken lines of darker colour inside; lip light reddish, with darker lines, the front lobe with a light yellowish border, the callus white; column whitish; peduncle loosely few-flowered. l. narrow-oblong, bilobed at apex. Pseudo-bulbs fusiform. New Guinea, 1815. (J. B. 1878, 196.) D. chlorostele (green-columned). fl. bold and stiff; sepals white, edged purple, ligulate, acute; petals broad, blunt, the outer halves purple, the interior white; lip shaped like that of D. Wardianum, with a strong, light, square cushion at the base, and an amaranth-coloured, radiating area around, bordered outside with light sulphur, the apicular zone bright purple. 1887. A hybrid between D. Linawianum and D. Wardianum.
D. chrysanthum anophthalmum (eyeless). A distinct variety, having no blotches on the lip. 1883.
D. chryseum (golden). fl. golden-yellow, almost orange, with a few faint crimson lines on the side lobes of the lip, solitary or in racemes of two or three; sepals oblong; petals broadly elliptic, almost as broad again as the sepals; lip orbicular, pubescent, with a minutely fimbriated margin, obscurely three-lobed, the small side lobes rolled over the very short column; spur short, obtuse. l. from the uppermost joints only, linear-lanceolate, 3in. to 4in. long. Stems terete, erect, 1ft. to 2ft. high. Assam (?). D. chrysocrepis (golden slipper). fl. golden-yellow, with a deeper lip, 1 1/2in. in diameter, solitary on short, slender peduncles from old, leafless stems; dorsal sepal and petals similar, obovate, concave; lateral sepals ovate, more spreading; lip somewhat pear-shaped, ventricose, velvety, the inner surface densely clothed with reddish hairs. March. l. three or more, elliptic-lanceolate, pointed, 2in. to 3in. long. Stems slender, 6in. to 10in. long, dilated above into flattened, leafy pseudo-bulbs. Moulmein, 1871. (B. M. 6007.) D. Chrysodiscus (yellow-disked). fl., sepals and petals whitish, blotched purple at apex; lip light sulphur-white, with a velvety, white, thickened cushion at base, a large orange area around, purple lines radiating from the cushion, the acute apex purple. 1887. A hybrid between D. Ainsworthii and D. Findlayanum.
D. C. oculatum (eyed). fl., sepals and petals having a larger and deeper apicular blotch; lip with a deep maroon disk, surrounded by a bright yellow zone.
D. chrysotoxum suavissimum (very sweet-scented). The correct name of the plant described on p. 457, Vol. I., as D. suavissimum.
D. ciliatum (ciliated). fl. 1in. across, many in pseudo-terminal and lateral racemes; sepals and petals pale yellow, the former linear-oblong, the lateral two falcate, the petals linear, dilated at apex; lip deep yellow, streaked obliquely with reddish-brown from either side of the trilamellate disk, obscurely lobed, triangular, incurved at the sides, the anterior lobe yellow-ciliate. October and November. l. sessile, oval-oblong, gradually narrowing upwards, 3in. long, deciduous. Stems tufted, 1ft. to 1 1/2ft. or more in length. Moulmein, 1863. (B. M. 5430.) D. coerulescens (bluish). A variety of D. nobile.
D. crassinodi-Wardianum (hybrid). fl. like those of D. crassinode Barberianum, but with two dark eye-spots; lip less acute than in D. Wardianum. 1886. This is supposed to be a natural hybrid between D. Wardianum and D. crassinode. SYN. D. melanophthalmum.
D. cruentum (blood-red). fl. whitish, with a strongly-marked, cinnabar callus; sepals triangular, acuminate, the lateral ones with a nearly rectangular chin; petals linear, acuminate; lip deeply trifid, the side laciniae falcate, erect, the middle one ovate, apiculate; column broader at the base than at the tridentate top. l. oblong, obtuse, bilobed. Stems sulcate. 1884. (W. O. A. 174.) D. cucullatum giganteum (gigantic). A synonym of D. primulinum giganteum. D. cumulatum (crowded). fl. rosy-purple, suffused white, 1in. in diameter, collected into crowded, sub-globose corymbs; sepals and petals oblong; lip obovate-oblong, longer and broader than the petals, prolonged at base into a slightly curved, obtuse spur; rachis and pedicels deep reddish-purple. Autumn. l. oblong, acuminate, 3in. to 4in. long. Stems tufted, slender, pendulous, 1 1/2ft. to 2ft. long. Moulmein, 1867. (B. M. 5703.) D. Curtisii (Curtis'). fl. magenta-rose, produced in short racemes. Stems tall, erect, slender, leafless; younger shoots furnished with linear-lanceolate leaves. Borneo, 1882.
D. Cybele (Cybele). fl., sepals and petals white, slightly tipped with light rose-colour; lip nearly white, slightly suffused with pale yellow, and having a large blotch of deep crimson-purple at the base. 1887. A hybrid between D. Findlayanum and D. nobile.
D. cymbidioides (Cymbidium-like). fl. medium-sized, showy; sepals and petals ochreous-yellow, linear-oblong, spreading; lip white, blotched purple near the base, much shorter than the sepals and petals, oblong-cordate, three-lobed, bearing on the disk tubercles arranged in two or three lines or series, the side lobes short, incurved, the terminal lobe ovate, obtuse; column short; peduncles terminal, erect, loosely racemose, five to seven-flowered. Pseudo-bulbs ovate or oblong-ovate, angled, bearing at the summit two oblong, obtuse, coriaceous leaves, longer than the pseudo-bulbs. Salak, Java, 1852. A rare species. (B. M. 4755.) D. dactyliferum (finger-bearing). fl. ochreous-white; sepals lanceolate, longer than the petals; side laciniae of the lip long and narrow, going out into angles, quite approximate to the thick, square, emarginate, anterior blade. Upper parts of the stems covered with old, thickish peduncles, the lower parts full of roots. 1884.
D. D'Albertisii (D'Albertis'). fl. odorous, distinctly spurred; sepals pure white; petals emerald-green, long, narrow, erect, twisted; lip striped magenta-purple; racemes erect. Stems square, tapering. New Guinea. A dwarf species. (G. C. n. s., x., p. 217.) D. Dearei (Col Deare's). fl. white, 2 1/2in. in diameter, on whitish pedicels; sepals lanceolate, acuminate, with recurved tips; petals oval, nearly three times as broad as the sepals; lip oblong, obtuse, obscurely three-lobed, with a pale yellowish-green, transverse zone between the base and the anterior margin; peduncles racemose. July and August. Stems robust, 2ft. to 3ft. long, the upper third clothed with sessile, oval-oblong leaves, 2in. long. Philippine Islands, 1882. (M. O. iii., p. 37; W. O. A. iii. 120.) D. densiflorum Walkerianum (Walker's). fl., racemes 2ft. long, more than fifty-flowered. Stems 3ft. high. Moulmein. (W. S. O. iii. 21.) D. erythropogon (red-bearded). fl. whitish-ochre and ochre, the keels on the mid-lines well-developed; petals oblong, undulated; side laciniae of lip white, edged crimson, much developed, blunt, rectangular, the middle one obcordate, toothleted, with seven thick, crimson keels on the disk, the two outer ones having short, crimson hairs on each side; column nearly white, with two scarlet spots at base. Sunda Islands, 1885.
D. euosmum (richly-scented). fl. cream-coloured, marked purple, powerfully scented; tips of the middle sepal and of the petals purple; lip with a rich purple disk and apex, and some purple, parallel veins on each side. 1885. A hybrid between D. endocharis and D. nobile.
D. e. leucopterum (white-winged). A beautiful hybrid, raised from the same capsule as D. euosmum, but the flowers are larger, with white sepals and petals, and the disk of the lip is of a rich purple. 1886. D. e. roseum (rosy). fl., sepals and petals toned with rose-purple, which is of a much deeper shade at the apex; apical blotch on the lip deeper than in the type.
D. Farmeri albiflorum (white-flowered). fl., sepals and petals almost pure white; lip orange, downy. India. (B. H. 1860, p. 321.) SYN. D. F. album (R. G. 595.) D. F. album (white). A synonym of D. F. albiflorum.
D. F. aureum (golden). fl. clear yellow, with an orange-yellow lip, freely produced in rich racemes. Moulmein, 1883. A charming variety, of dwarf habit. (W. O. A. iii. 99.) D. formosum Berkeleyi (Berkeley's). fl. scentless, more funnel-shaped than those of the type; petals narrower and shorter. Andamans, 1883. D. f. giganteum (gigantic). fl. 6in. in diameter; lip 2in. broad, with a bright golden blotch. Stems reaching 3ft. in length. Upper Birma, 1882. A very fine variety. (G. C. n. s., xvii., p. 369.) D. Friedricksianum (Friedricks'). fl. light yellow, with a darker yellow centre to the lip, where there is a dark purple, semicircular blotch, resembling those of D. aureum in shape; lip rolled around the column, oblong, full of asperities on the disk, and with a clavate line in front of the base; raceme four-flowered, slender. Stem rather thick, much-furrowed. Siam, 1887. D. fuscatum (fuscous). fl. deep orange-yellow, 2in. across; sepals and petals oblong, somewhat incurved; lip shorter, broadly oblate, cucullate, with two crimson spots at base, downy, the margins fringed; racemes produced from the nodes of the leafless stems, drooping, 4in. to 7in. long, sometimes fifteen-flowered, the rachis zigzag. l. lanceolate or ovate-lanceolate, acuminate, 4in. to 6in. long. Stems fascicled, grooved, 2ft. to 3ft. long. Khasya and Sikkim. (B. M. 6226.) D. Fytchianum roseum (rose-coloured). fl. rose-coloured, about 1 1/2in. in diameter, having processes on the lip of a rich purple. Birma, 1887. (W. O. A. 336.) D. Goldiei (Goldie's). fl. rich claret-purple; sepals lanceolate, with dark tessellations; petals whole-coloured, broader, oblong; lip whole-coloured, longer and narrower than in D. superbiens (which this plant resembles). l. longer and narrower. Stems taller and slenderer. Torres Straits. (Gn. xiv., p. 244.) D. Griffithianum Guibertii (Guibert's). fl. larger and brighter-coloured than in the type; racemes longer. l. more coriaceous. Stems less densely tufted and more abruptly attenuated below. (I. H. ser. iii. 258; R. H. 1876, p. 431, under name of D. Guibertii.) D. Guibertii (Guibert's). A variety of D. Griffithianum. D. Hanburyanum (Hanbury's). A synonym of D. lituiflorum. D. Harrisoniae (Mrs. Harrison's). A synonym of Bifrenaria Harrisoniae. D. Harveyanum (Harvey's). fl. deep chrome-yellow, with two orange blotches on the lip; chin short, emarginate; sepals triangular-lanceolate, acute; petals oblong, acute, fringed; lip round, a little involved at base, with strong fringes, a rough surface, and an obscure callus at base; peduncle lateral, filiform, four-flowered. Pseudo-bulbs fusiform, 6in. long. Birma, 1883. D. Hasselti (Hasselt's). fl. pale purple; dorsal sepal lanceolate, the lateral ones connate in a sac; lip linear, acute. l. rigid, lanceolate, deeply and obliquely emarginate. Stems erect. 1885. (I. H. 1885, 545.) D. Henshallii (Henshall's). A variety of D. aureum.
D. hercoglossum (fence-lipped). fl. similar to those of D. aduncum, but with a more oblique spur; sepals and petals delicate mauve; lip white, with a mauve-purple, recurved apex, the basal part cup-shaped, hairy inside, separated from the front part by a transverse fringe of hairs. Stems slender, bearing lateral racemes at the top. Malacca, 1886.
D. Hillii (Hill's). A variety of D. speciosum.
D. Hookerianum (Hooker's). The correct name of the plant described on p. 452, Vol. I., as D. chrysotis. (I. H. 1873, 155; W. S. O. iii. 6.) D. Huttonii (Hutton's). fl. white, bordered purple, solitary or in fascicles of two or three from the uppermost joints; sepals and petals oval-oblong; lip obovate-oblong, with a deeper-coloured border than on the sepals and petals. l. sessile, linear-lanceolate, acute, 3in. long. Stems slender, erect, 20in. to 30in. long, leafy along the upper half. Malayan Archipelago, 1868. D. inauditum (incredible). fl. two, arising from the base of the leaf; sepals and petals pale yellowish, 1 1/2in. long, narrow linear-lanceolate; lip pale ochreous, spotted brown, the side lobes square, obtuse, the front one lanceolate, acuminate; pedicels (including the ovary) about 2in. long. l. elliptic, obtuse. Pseudo-bulbs tufted, fusiform-ovate, narrowed at apex into a slender, brownish leaf-stalk 3in. to 4in. long. New Guinea, 1886. A singular species.
D. infundibulum carneo-pictum (flesh-colour-painted). A variety having a flesh-coloured hue on the lip, and a thick central line and a few streaks on the sides. 1885.
D. i. Jamesianum (James Veitch's). The correct name of the plant described on p. 454, Vol. I., as D. Jamesianum.
D. i. ornatissimum (very ornamental). fl. large, waxy, having brown stripes and spots on the lip instead of yellow. 1883. A. grand variety. D. ionopus (purple-spurred). fl. deep yellow; sepals triangular, the lateral ones elongating in a falcate chin; lip marked with a few purple and red blotches, and with a red hue along the thicker back of the falcate, spur-like extension of the disk; raceme short. Birma (?), 1882. D. japonicum (Japanese). fl. white, speckled purple at base of lip, fragrant, 1 1/2in. in diameter, solitary or in pairs; sepals oblong, acute; petals similar but broader; lip ovate-oblong, acuminate, reflexed. l. linear-lanceolate, acute, 1in. to 2in. long, deciduous. Stems tufted, 6in. to 12in. long, slender, attenuated downwards. Southern Japan, 1860. (B. M. 5482.) D. Johannis semifuscum (half-fuscous). fl., sepals yellow; petals brown; lip yellow, with reddish-brown borders and lines on the side lobes. 1883. D. leucolophotum (white-haired). fl. white, resembling those of D. barbatulum, but much larger; chin small, acute; sepals ligulate, acute; petals much larger, oblong, acute; lip trifid, the side laciniae triangular, rounded outside, the anterior one linear-ligulate, acute; inflorescence lax, more than 1ft. long. l. oblong-ligulate, acuminate. Stems cylindrical, attenuated, many-leaved. Sunda Islands, 1882.
D. leucopterum (white-winged). A variety of D. euosmum. D. linearifolium (linear-leaved). fl. white; upper sepals small, oblong, acute, the lateral ones having two mauve-purple lines; petals very small, nearly rhombic; lip cuneate-dilated, or blunt-retuse or trilobed at apex with rhombic side lobes and a retuse middle one, the side lobes veined purplish-mauve. l. linear, bidentate, more than 2in. long. Stem thin, slender, bearing numerous branches. Java, 1883.
D. linguella (small-tongued). fl. probably rosy, the anterior part of the lip yellow, closely resembling those of D. aduncum, but the lip is totally distinct in its double, lamellar appendages at the base. Malayan Archipelago, 1882.
D. Loddigesii (Loddiges'). This is the correct name of the plant described on p. 457, Vol. I., as D. pulchellum. (B. i. 5; L. B. C. 1935.) D. Lowii pleiotrichum (several-haired). A variety wanting the red veins on the lip, and having short hairs on the basal lobes. 1885. D. luteolum chlorocentrum (yellowish-spurred). fl. pale primrose, having greenish hairs on the disk of the lip. 1883. (G. C. n. s., xix., p. 340.) D. Macfarlanei (Rev. S. M. Macfarlane's). fl. 4in. to 5in. across; sepals and petals white, the former lanceolate, the latter longer and broader, sub-rhomboidal, acuminate; lip nearly as long as the petals, three-lobed, the side lobes white, with a large, purple spot at the anterior margin, the middle lobe white, purple at base, as is the ligulate, furrowed callus; column white, bordered purple; racemes ascending, nine to twelve or more-flowered. l. oblong, sub-acute, leathery, 3in. to 4in. or more in length. Stems erect, sub-cylindric, 5in. to 8in. high, usually two or three-leaved. Papua, 1882. (M. O. iii., p. 159.) D. macrophyllum Dayanum (Day's). A superior variety. Borneo. D. m. giganteum (gigantic). fl. solitary or twin, 4in. in expanse; sepals and petals rosy-mauve, tinted lilac, the eye (as well as the fringed lip) rosy-purple. Manilla, 1886.
D. m. stenopterum (narrow-winged). In this variety the sepals and petals are ochreous-yellow, the outside being marked with dark reddish-brown spots; the lip is yellow, with numerous dark brown dots on the outside and rather pale markings on the inside of the mid-lacinia, the side laciniae being marked with a few brown lines, and being narrow-triangular in shape instead of irregularly square.
D. m. Veitchianum (Veitch's). The correct name of the plant described on p. 455, Vol. I., as D. macrophyllum.
D. marginatum (margined). A synonym of D. xanthophlebium. d. melanodiscus (dark-disked). fl. resembling those of D. Ainsworthii; sepals and petals marked purple at the top; lip having a poor purple spot at the top. 1887. Hybrid.
D. melanophthalmum (dark-eyed). A synonym of D. crassinodi-Wardianum. D. mesochlorum (green-centred). fl. 1 1/2in. across, in fascicles of two or three; sepals and petals white, tinted pale rose-purple towards the tip, the former linear-oblong, the latter oval-oblong; lip white, with a large, yellowish-green disk, and a few purple streaks near the base, clawed, broadly oblong, rolled over the column in the form of a funnel. May. l. linear, acute, 4in. to 5in. long. Stems slender, 15in. to 20in. long. India, 1847. (P. F. G. i., p. 63.) D. micans (glittering). fl. about 3in. in diameter; sepals and petals mauve-purple, paler towards the base; lip white, with a maroon-purple disk, and a rose-purple blotch at apex. A hybrid between D. Wardianum and D. lituiflorum.
D. Moorei (Chas. Moore's). fl. pure white; sepals and petals linear-lanceolate; lip similar but shorter, and with a small, triangular lobe on each side below the middle; scapes filiform, bearing at their apex a raceme of six to ten flowers. Stems terete, 4in. to 6in. long, with three to five oval-oblong, leathery leaves at their apex. Lord Howe's Island, 1878. A dwarf, tufted species.
D. moschatum Calceolaria (slipper-like). The correct name of the plant described on p. 452, Vol. I., as D. Calceolaria.
D. moulmeinense (Moulmein). A synonym of D. infundibulum. D. murrhiniacum (purplish). fl., sepals and petals snow-white, tipped purple; lip with a large, purple, obcordate blotch at base of disk, some darker lateral stripes, and a light purple apex. A hybrid between D. nobile and D. Wardianum.
D. nobile alba (white). A trifling variety, with very pale edges to the sepals, petals, and tip of the lip. 1884.
D. n. Cooksonianum (Cookson's) fl., middle area of the petals very deep purple, their tips with purple borders; bases of the petals hastate, thickened in the middle and velvety. 1885. A grand variety.
D. n. elegans (elegant). fl. larger and more symmetrical than in the ordinary forms; petals broader, white at the base; zone surrounding the maroon disk of the lip pale sulphur-yellow, the apical margin rose-purple. D. n. formosanum (Formosa). fl. white, the petals and lip tipped with mauve-purple; ovaries mauve. Formosa, 1883. One of the long-stemmed varieties. D. n. pallidiflorum (pale-flowered). A synonym of D. primulinum. D. n. Sanderianum (Sander's). fl., sepals and petals purple, the latter white at base; disk of lip covered by a dark blotch, which is surrounded by rosy-purple, except a small white area in front, veined purple, and with a white border to the superior part. 1884.
D. n. Schneiderianum (Schneider's). A variety having a yellow hue over the lip, and a dark mauve-purple mark at its base. 1884. D. n. Tollianum (Toll's). fl., petals bordered with purple, and spotted and streaked with purple on the disk and at the base. 1884. A fine variety. D. nycteridoglossum (dark-lipped). fl. produced in fascicles on the upper and ultimately leafless part of the stem; sepals and petals green, striped very dark red; lip green, with a dark spot on the disk, broad, triangular side lobes, and a very short, retuse central lobe. Papua, 1886. D. Palpebrae (eyelids). fl. French white, with an orange-yellow disk near the base of the lip, faintly scented like Hawthorn; sepals oblong, narrower than the oval petals; lip oblong, with a short, convolute claw, downy above, and with a fringe of long hairs near the base; column yellowish; racemes loose, six to ten-flowered, produced from the joints immediately below the leaves. Late summer. l. oblong-lanceolate, acute. Stems clavate, four-angled, attenuated below, 7in. to 9in. long, with three to five leaves at their summit. Birma, 1849.
D. pardalinum (leopard-spotted). fl., sepals and petals ochre, spotted dark purple; lip having a very long stalk, with two long, wavy, plicate keels, the front lobe pentagonal, both sides running backwards, producing a sagittate appearance. Stem climbing, covered with narrow, ligulate, one-leaved pseudo-bulbs. 1885.
D. Parthenium (Parthenium). fl. white, with a purple blotch at the base of the lip; sepals lanceolate-triangular, with obscure keels; petals oblong, obtuse, longer than the sepals; racemes two-flowered. l. 1 1/2in. long. Stems thin. Borneo, 1885.
D. Paxtoni (Paxton's), of Lindley. A synonym of D. chrysanthum. D. percnanthum (black-spotted-flowered). fl., sepals and petals pale yellow, the former triangular, the chin blunt, the petals oblong, obtuse, longer than the sepals; lip white, ligulate, trifid at apex, the mid-lobe and borders of the upper part yellow, the side lobes blunt-rhomboid, the keels brown and purple; racemes numerous. Stems strong, shining. Moluccas, 1886. D. Phalaenopsis (Phalaenopsis-like).* fl. about 2in. in diameter; perianth spreading; sepals pale pink, with reticulated nerves; petals rose-red, much larger, rhomboid-orbicular, acute; lip dark purplish-blood-red, the lateral lobes rounded, the middle one tongue-shaped; racemes pendulous, loosely six to ten-flowered. September. l. alternate, distichous, 6in. to 8in. long. Stems tufted, 1ft. to 1 1/2ft. high. North Australia and New Guinea. (B. M. 6817; G. C. n. s., xxvi., p. 556; W. O. A. iv. 187.) D. Pitcherianum (Pitcher's). fl., sepals and petals pinkish-white, tipped purple, the petals having a broad, rosy mid-line from tip to base; lip light sulphur, with purple apex; disk with a callous, abrupt, whitish line in the middle, on either side of which are parallel, dark purple stripes. l. somewhat resembling those of D. nobile (which is supposed to be one of the parents of this hybrid, D. primulinum being believed to be the other). D. pogoniates (bearded). fl. small; sepals and petals yellowish, the former lanceolate, acute, the latter cuneate-oblong; lip orange, with a long mid-lobe, bearded. l. linear-lanceolate. Stems fusiform, 1ft. high. North Borneo, 1886. A miniature plant, of more botanical than horticultural interest.
D. polycarpum (many-fruited). fl. yellowish, with purplish-red borders to the side laciniae; sepals ligulate-triangular; petals longer, ligulate-spathulate; lip having roundish, angulate side laciniae, and a rounded, triangular, undulated central one; racemes many-flowered, loose. Stems 3ft. long. Sunda Islands, 1883.
D. polyphlebium (many-veined). fl., sepals and petals rosy; lip rounded, shorter than the sepals, a little fringed at the border, full of stiff hairs at the anterior border, purple-veined, with a light brownish-purple area. Pseudo-bulbs 1ft. to 1 1/2ft. long. 1887. Probably a hybrid. (W. O. A. vii. 299.) D. porphyrogastrum (purple-bellied). fl. 2in. to 3in. across; sepals and petals pale rosy-mauve, similar and sub-equal, the petals a little more deeply coloured than the sepals; lip pale rose-purple and white, with a deep purple, spotted disk, the margin ciliolate, the spur short and funnel-shaped. A hybrid between D. Huttonii and D. Dalhousieanum.
D. primulinum giganteum (gigantic). fl. white, tipped pink, with a sulphur lip, very large, freely produced. Sikkim. A fine variety. SYN. D. cucullatum giganteum.
D. profusum (profuse). fl., sepals and petals yellowish-green, with fine purple at the base inside, and purple dots on the toothed petals, the sepals ligulate, acute; lip yellow, with a dark spot in the middle, the blade pandurate, the anterior part very broad, toothleted and wavy; peduncles seven to nine-flowered. l. deciduous. Philippine Islands, 1884. D. purpureum (purple). fl. bright purple, about 3/4in. long, cylindrical, arranged in dense, spherical, sessile clusters, which are produced from the nodes of the old, leafless, spindle-shaped stems, of many year' duration, and usually 3ft. to 4ft. long; bracts cordate. Moluccas. D. p. candidulum (whitish). fl., tips of the sepals very bright green; ovary pure white, stalked. 1887.
D. p. Moseleyi (Moseley's). fl. white, tipped green, the tips of the sepals and petals less pointed than in the type; bracts ovate, acuminate. Stems 9in. (? or more) long. Arn Islands, 1884.
D. revolutum (revolute). fl. solitary, axillary, 3/4in. long; seals and petals white, reflexed upwards, Janceolate, acute, nearly equal; lip bright yellow-green, nearly quadrate, convex; disk with three furrows and red bands; bracts caducous. July. l. numerous, distichous, 1in. to 2in. long, oblong or linear-or ovate-oblong, obtuse or retuse, half-am-plexicaul. Stems tufted, 1ft. long. Pseudo-bulbs none. Malay Peninsula, 1882. This species is not very handsome (B. M. 6706.) D. rhodopterygium Emerici (Emeric's). "A white line runs outside the mid-vein of the lateral sepals. The dark transverse blotch on the anterior area of the lip is interrupted by an amethyst-colour bar. The anterior, apiculate border is pure white, changing then to straw-colour." Reichenbach, from whose description above is copied, placed this plant as a variety under D. polyphlebium.
D. rhombeum (rhomboid). A synonym of D. aureum.
D. Rimanni (Rimann's). fl. equalling those of a good D. speciosum, disposed in terminal, somewhat zigzag racemes; sepals and petals yellow, the former striped purple outside; lip white, with purple reticulations. l. oblong, 3 1/2in. long, very coriaceous. Stems cylindricfusiform, leafy above. Moluccas, 1883. A stately species.
D. rutriferum (shovel-bearing). fl., sepals rose, triangular, blunt, the lateral ones extended into a long pouch; petals rose at the base, whitish at the blunt end; lip ligulate-pandurate, with inflexed borders, thus saccate at apex, where the borders are denticulate; rachis rather short, covered with a capitate-umbellate inflorescence. Stem furrowed, as thick as a goose-quill. Papua, 1887. (L. iii. 119.) D. Schneiderianum (Schneider's). fl. scented, the sepals and the broader petals white, tinged lilacpurple in the upper half; lip orange, with an area of light velvet at base, wherefrom dark reddish lines emanate, a whitish area round this is washed with light sulphur, the apex of the lip lilac-purple. Pseudo-bulbs 6in. high, 2in. thick, three-leaved. 1887. A hybrid between D. Findlayanum and D. aureum.
D. Schroederi (Baron von Schraeder's). A synonym of D. densiflorum. D. secundum niveum (snowy). fl. white, with the exception of an orange tip to the lip. Stem shorter than in the common form.
D. signatum (preserved). fl., chin very blunt-angled; sepals sulphur, ligulate, acute, reflexed; petals white to lightest ochre, broader, acute, reflexed; lip shouldered at base, nearly square and narrow, suddenly enlarged, the disk marked with a blotch and four lines of brown; column light green, with some mauve lines; inflorescence one-flowered. Siam, 1884. D. speciosum Bancroftianum (Bancroft's). fl., petals longer and narrower than in the type; lip paler, with a few purple spots at base. Stems slenderer. D. splendidissimum grandiflorum (large-flowered). fl., sepals and petals rose-purple at the tips, white at base; lip with a large, purple blotch and a pale yellow zone. 1887. (M. O. iii., p. 91.) D. Stratiotes (soldier).* fl. of a good size, very peculiar; sepals ivory-white, lanceolate, acuminate, rolled back; petals pale green, longer than the sepals, narrow-linear, twisted, quite erect; lip cream-coloured, veined violet, three-lobed, the front lobe ovate, acute; racemes numerous. l. rather short, oblong. Pseudobulbs long, fusiform. Sunda Islands, 1886. A remarkable and handsome species. (G. C. n. s., xxvi., p. 177; I. H. 602.) D. strebloceras (twisted-horned). fl., sepals green, nerved brown on the inner side at base, ligulate, acute, twisted, undulated; petals dark cinnamon-brown, margined green, longer, linear, acute, twisted four times; lip green, brown, white, and mauve-purple, the side laciniae oblique, oblong, truncate; column white, minutely spotted brown; inflorescence eight-flowered. 1887. D. s. Rossianum (Ross'). fl. white; petals greenish; lip and sepals at length yellowish. 1888.
D. sulcatum polyanthum (many-flowered). fl. buff-yellow, the lip orange, with two crimson blotches; raceme sub-globose, about fourteen-flowered; peduncle erect from an upper axil, then arching over. l. ovate-oblong, acute or shortly acuminate, seven-nerved, sub-cordate at base, 3in. to 4 1/4in. long. 1887. D. superbum Burkei (Burke's). fl. white, with two light blush-rose cheeks on the base of the disk of the yellowish-white lip. 1884. A fine variety. D. tetragonum (quadrangular). fl. 3in. to 4in. across; sepals yellow, spotted red, the dorsal one narrow-subulate, the lateral ones lanceolate, much broader at the base than the dorsal one; petals white, streaked red, linear, shorter and narrower than the sepals; lip white, transversely barred red, broadly ovate, apiculate, obscurely three-lobed, with two white lamellae between the side lobes; raceme few-flowered. l. in pairs at the summit of the stem, spreading, oblong or elliptic-lanceolate. Stems pendulous, acutely four-angled, 8in. to 15in. or more in length, attenuated to a slender footstalk which is pseudo-bulbous at base. Australia. (B. M. 5956.) D. thyrsiflorum (thyrse-flowered). The correct name of the plant described on p. 453, Vol. I., as D. densiflorum albo-luteum.
D. t. Walkerianum (Walker's). fl. larger, racemes stronger, and stems longer, than in the type. (W. S. O. iii. 21.) D. Treacherianum (Treacher's). fl. pale rose-red, two or three to a scape, sub-erect, upwards of 1 1/2in. long; sepals narrow-lanceo-late, the dorsal one straight, the lateral ones connate in a gibbosity or spur striped with red; petals like the dorsal sepal; lip darker red and shorter than the petals, three-lobed. July. l. in pairs, 3in. to 4in. long, 1/2in. to 3/4in. broad, linear-oblong. Pseudo-bulbs brownish-green, stained red. Borneo, 1880. (B. M. 6591; W. O. A. vi. 288.) D. trigonopus (triangular-columned). fl. golden-yellow; sepals ligulate, acuminate, keeled on the middle; petals broader and shorter; claw of the lip rather long, dilated into a broad lamina whose lateral segments are nearly square; column triangular-pandurate. l. thick, papery, dull green, rather rough, slightly hirsute at back. Birma, 1887.
D. Vannerianum (Vanner's). fl., sepals white, margined purple, lanceolate; petals white, purple at apex, oblong, acuminate; lip white, marked purple, rhombic, the disk sulphur-coloured. l. lanceolate, more than 2in. long, 1/2in. wide. 1887. A hybrid between D. japonicum and D. Falconeri. D. Veitchianum (Veitch's). A synonym of D. macrophyllum. D. vexabile (vexing). fl. light sulphur-ochre, partly white; side laciniae of the lip marked with numerous narrow lines, the anterior lacinia sulphur, with an orange blotch on each side of the tuft of hairs, very wavy. 1878. Allied to D. Ruckeri.
D. virgineum (maiden). This resembles D. infundibulum, but the flowers are smaller, ivory-white, with two thickened, ligulate, reddish lines running from the base to the middle of the lip. Birma, 1885.
D. Wallichianum (Wallich's). A variety of D. nobile. D. Wardianum assamicum (Assam). fl. smaller but more brilliantly coloured than in the type. l. narrower. Stems shorter and slenderer (B. M. 5058, under name of D. Falconeri var.) The type is illustrated at Fig. 16. D. W. giganteum (gigantic).* fl. larger and stouter than those of the type. Winter and spring. h. sometimes 5ft. Birma. A grand variety. (W. O. A. iii. 113; F. M. ser. ii. 212.) D. Williamsianum (Williams').* larger; sepals ivory-white, the dorsal one and the ivory-white petals broadly oblong, apiculate, the lateral sepals triangular, the disk of the petals washed light purple; lip purple, having an angular chin, standing upright, adpressed to the column, the limb roundish; racemes about twelve-flowered, produced from the upper part of the slender bulbs. New Guinea, 1886. (G. C. n. s., xxvi., p. 173; W. O. A. 252.)
