X
Xanthisma
(from xanthisma, yellowness; alluding to the colour of the flowers). SYN. Centauridium. ORD. Compositae. A monotypic genus. The species is…
Xanthium
(the old Greek name used by Dioscorides, from xanthos, yellow; the plants were formerly used by the Greeks for dyeing hair). Cockle Bur…
Xanthocephalum
(from xanthos, yellow, and cephale, a head; alluding to the yellow flower-heads). SYN. Xanthocoma. ORD. Compositae. A genus consisting of…
Xanthoceras
(from xanthos, yellow, and keras, a horn; alluding to the yellow, horn-like glands or nectaries between the petals). ORD. Sapindaceae. A…
Xanthochymus
(from xanthos, yellow, and chymos, juice; the plants contain an abundance of yellow juice). SYN. Stalagmites. ORD. Guttiferae. A small…
Xanthorhiza
(from xanthos, yellow, and rhiza, a root; alluding to the bright yellow colour of the long roots and rootstock). SYN. Zanthorhiza. ORD…
Xanthorrhoea
(from xanthos, yellow, and rheo, to flow; referring to the resinous juice extracted from the plants). Black Boy; Grass Gum-tree…
Xanthosia
(from xanthos, yellow; alluding to the yellow down with which some of the species are covered). SYN. Leucoloena. ORD. Umbelliferae. A genus…
Xanthosoma (From xanthos yellow and soma)
(from xanthos, yellow, and soma, a body; alluding to the large, lobed, depressed, yellow stigma). Including Acontias and Phyllotoenium…
Xeranthemum
(from xeros, dry, and anthemon, a blossom; alluding to the dry nature of the flowers, which retain their form and colour for years)…
Xeronema
(from xeros, dry, and nema, a thread; the filaments dry and persist). SYN. Scleronema. ORD. Liliaceae. A monotypic genus. The species is an…
Xerophyllum
(from xeros, dry, and phyllon, a leaf; alluding to the dry, Grass-like leaves). ORD Liliaceae. According to Baker, a monotypic genus. The…
Xerotes
(from xerotes, dryness; alluding to the arid herbage). SYN. Lomandra. ORD. Juncaceae. A genus comprising thirty species of greenhouse…
Ximenia
(named after Francis Ximenes, a Spanish monk, who wrote a work on Mexican plants in 1615). SYN. Heymassoli. ORD. Olacineae. A small genus…
Xiphidium
(from xiphos, a sword, and eides, likeness; alluding to the shape of the leaves). ORD. Haemodoraceae. A genus consisting of two species…
Xylobium
(from xylon, wood, and bios, life; in allusion to the substance on which the plants grow). ORD. Orchideae. A genus comprising about sixteen…
Xylomelum
(from xylon, wood, and melon, an apple; alluding to the woody fruit). ORD. Proteaceae. A small genus (four species) of greenhouse trees or…
Xylopia
(abridged from xylopicron, which is from xylon, wood, and pikros, bitter; the wood of some of the species is intensely bitter). Bitter…
Xyrideae
A small natural order of perennial or rarely annual, Rush-like or Sedge-like, tufted herbs, broadly dispersed over the warmer regions of…
Xyris
(an old Greek name used by Dioscorides for Iris faetidissima). Yellow-eyed Grass of North America. ORD. Xyrideae. A genus comprising about…
Xysmalobium
(from xysma, a fragment, and lobos, a division; alluding to the minute divisions of the corona). ORD. Asclepiadeae. A genus consisting of…
Xanthosoma (To the species described on pp)
To the species described on pp. 223-4, the following variety should now be added: X. Lindeni magnificum (magnificent). A handsome variety…