OECHIDACBAE , 311 



g 1. Flowers in a loose raceme, on a scape 2-Uaved at bate. 



1. I*, orhiciilatil, Lindley. Leaves roundish-oval, large, flat 

 on the ground ; lip entire; spur twice as long as the ovary; flowers 

 greenish-white. 



ORBICULAR PLATANTHERA. 



Leaves 4 to 6 inches long, and 3 to 5 inches wide, fleshy, smooth, bluish-green , 

 subsessile. Scape 9 to 18 inches high, somewhat angular, bearing about 3 small 

 bracMike leaves. Flowers numerous, in a terminal bracteate raceme 4 to 6 inches 

 in length : bracts lanceolate, nearly as long as the pedicel and ovary ; ovary 

 oblong, angular, spirally twisted. 

 Hob. Moist woodlands : rare. FL June. Fr. 



\ 2. Flowers in a terminal spike, on a leafy stem. 

 fLip entire, or merely toothed; bracts mostly longer than the flowers. 



2. I*. toi'JictesYta, Torrey. Lower leaves obovate, upper ones 

 oblong, and lanceolate ; lip 2- or 3-toothed at apex ; spur short, 

 saccate and somewhat 2-lobed. 



Habenaria bracteata. R< Br. $ FL Oestr. ed. 2, p. 506. 

 BRACTEATE PLATANTHERA. 



Stem 6 to 9 inches high. Leaves about 3 in number, 1% to near 3 inches in 

 length. Spike 2 to 3 inches long ; bracts Itnear-lanceolate, the lower ones about 

 twice as long as the flowers, the upper scarcely longer; flowers pale green, small. 

 Hob. Great Valley ; near Brooke's Mill : rare. FL May. Fr. 



3. P. HitVcl, A. Gray. Leaves lance-oblong, and linear-lance- 

 olate ; lip with a tooth on each side at base, and one on the palate ; 

 spur slender, clavate. 



Habenaria herbiola. 5. Br. $ Fl. Oestr. ed. 2. p. 506. 

 YELLOW PLATANTHERA. 



Stem 12 to 18 inches high, somewhat angular and flexuose. Leaves about 3 in 

 number, 3 to 6 inches in length. Spike 3 to 6 or 8 inches long; bracts lanceolate, 

 acuminate, the lower ones 2 or 3 times as long as the flowers, the upper one^ 

 scarcely as long ; flowers rather small, greenish-yellow. 

 Bab. Moist, or swampy thicket*: frequent. Fl. June. Fr. Sept< 



ft Lip fringed, but not lobed ; bracts shorter than the flowers. 



4. P. Cillaris, Lindley. Leaves obi ong- lanceolate ; spike ob- 

 long, rather dense ; lip lanoe-oblong, pinnatifidly lacerate-ciliate ; 

 spur filiform, longer than the ovary. 



Habenaria ciliaris. JR. Br. $ Fl. Cestr. ed. 2. p. 507. 

 CILIATE PLATANTHERA. 



Stem 1 to 2 feet high angular. Leaves several, 3 to 6 inches long, usually 2 or 

 3 larger ones below, and some smaller bract-like ones above. Spike 2 to 4 inches 

 long; bracts lanceolate, shorter than the ovary; flowers rather large, bright 

 orange-yellow. 

 ffab. Swamps, among the slaty hills : not common. Fl. July. Fr. Sept. 



Obs. This handsome species is well worthy of a place in the 

 flower-garden, for the sake of its showy spikes. 



