Flora of the Paloase Region 49 



76. CYPRIPEDIUM. 



* Glandular-pubescent herbs with leafy stems or scapes and tufted 

 roots of thick fibres: leaves large, broad, many-nerved: flowers sol- 

 itary or several, drooping, large, showy: sepals spreading, separ- 

 ate or two of them united under the lip: lip a large inflated sac: 

 column bearing a sessile or stalked anther on each side and a 

 dilated petal-like sterile stamen above, covering the summit of the 

 style; pollinia granular: stigma terminal, broad, obscurely 3-lobed. 



C. montanum Dougl. Whole plant glandular pubescent: stems 30-50 

 cm. tall, erect: leaves 4-6, oval, acuminate, 6-12 cm. long: flowers 1-3, ped- 

 icelled: sepals brown, usually dark, narrowly lanceolate, 5-6 cm. long: upper 

 petals like the sepals, but narrower and longer, wavy-twisted: lip white, 

 veined with purple, oblong, 3 cm. long: sterile anther somewhat triangular, 

 yellow with purple spots, about 1 cm. long. Woods, Thatuna Hills, rare; a 

 single specimen found at Pullman. 



■ 77. PIvATANTHERA. 



Stems leafy, from elongate tuberous roots: flowers numerous, 

 white or greenish, small, racemose or spicate: sepals and petals 

 similar, spreading or converging: lip flat, spreading, 3-lobed, en- 

 tire, bearing a spur at base: column very stout: anther one, the 

 two cells widely divergent at base: pollen masses coarsely granu- 

 lar, one in each anther sac, each attached by a slender stalk to a 

 viscid gland on the side of the stigma. 



Stems leafy throughout. P. gracilis. 

 Stems leafy only at the base. 



Flowers white: spur long. P. ELEGANS. 



Flowers greenish: spur short. P. foetida. 



P. gracilis Lindl. Stems stout, leafy, .5-1 m. tall: leaves lanceolate, 

 acuminate, 10-15 cm. long, gradually diminishing upward into the bracts: 

 spike slender, 20-30 cm. long, loose, the lower flowers remote: bracts nar- 

 rowly lanceolate, exceeding the lower flowers, equalling the upper ones: 

 sepals 3-nerved: lip linear, thick, as long as the spur, which is inflated and 

 very obtuse at the tip. Springy places, Thatuna Hills. 



P. elegans Lindl. Stouter than the preceding, somewhat taller: basal 

 leaves 2-4, oblong or lanceolate, 10-15 cm. long, 3-5 cm. wide, obtuse or 

 acute: cauline bracts oblong, acuminate, 1-3 cm. long: spikes usually dense, 

 8-20 cm. long: bracts ovate, acuminate, about equalling the white flowers or 

 the mature ovary: sepals and petals similar, 4 mm. long, obscurely 3-nerved: 

 lip like the petals, the spur slender, 7-10 mm. long: capsule oblong, nearly 

 sessile. Pullman, very rare. 



P. foetida Oeyer. Stems stout, 20-40 cm. tall, leafy at base, bracteate 

 above: leaves 2-3, oblanceolate, obtuse, about 15 cm. long, usually withering 

 before the flowers bloom: spike narrow, rather dense, 8-15 cm. long: bracts 

 triangular, acute or acuminate, shorter than the ovary, a few along the stem 

 below the spike: flowers small, greenish: sepals and petals lanceolate, 

 i-nerved, 1.5-2111111. long; lip scarcely exceeding the petals; spur curved, 

 about 3 mm. long: capsule oblong, sessile. Pullman, very rare. 



