Islands
(B. M. 6343.) I. cristata (crested).* fl., limb pale lilac, about 1/2in. deep; falls with an obovate-obtuse reflexing blade, 1/2in. broad, the throat and crest deep yellow; standards erect, oblanceolate, less than 1/2in. broad, and rather shorter than the falls. April and May. l. about four, in a distichous rosette, linear, broad at the middle. Stem very short, two-flowered. h. 6in. Eastern United States, 1756. (B. M. 412; L. B. C. 1366.) I. dichotoma (two-forked). fl., limb lilac, about 1in. deep, not opening till afternoon, and only expanding once, twisted spirally after flowering; falls oblong, 1/2in. broad, the claws obscurely bearded, white, spotted with purple; standards oblanceolate, deeply emarginate; clusters five or six-flowered.