140 FLORA OF TEXAS. 



lets 7-9, oval, entire or 2-3-lobed, obtuse or mucronate, 

 coriaceous, strongly reticulated ; calyx ovate ; sepals ovate- 

 lanceolate, with spreading tips, not margined, longer than 

 the stamens; tails of the achenia (1^' long) slender, plu- 

 mose. Dry sandy soil. May-July. Calyx downy, dull 

 purple. 



0. PiTCHERi. Leaflets rough with prominent veins, 

 coriaceous. Sepals lanceolate, thick, achenia with short 

 pubescent tails. Leaves pinnate, those of the peduncles 

 simple, subsessile. Leaflets ovate, acute or obtuse, often 

 subcordate at base. Sepals of the nodding flower ovate- 

 lanceolate, dull purple, 8-10" in length, the cuspidate point 

 reflexed. Hills in W. Texas. June. Bigelow. 



C. Texei^sis, Buckley. Stem climbing; leaves pe- 

 dunculate, entire, broad-ovate, acuminate, mucronate, 

 shortly petiolate; cauline leaves unequally pinnate, long 

 petioled, leaflets 1-3-lobed, segments lanceolate, acute, pe- 

 duncles one-flowered, sepals coriaceous, at the apex a little 

 reflexed. Leaves thin, not coriaceous, whole plant smooth ; 

 peduncles 2-2J- inches long ; flotvers about an inch long, 

 subconical, purple, floral leaves 2-4, near the junction 

 of the peduncle with the stem, large, crowded, and on 

 petioles 2-3 lines long, at the base of which are 2-4 spathu- 

 lar bracts. The unequally pinnated stem-leaflets small, 

 1-3-lobed, segments lanceolate and acute; part of these 

 stem-leaflets are on long tendril-like petioles. Flowers in 

 May. Near the Colorado River, above Ausi^. 



* * Flowers panided ; calyx thin^ spreading, white ; stems woody. 



C. Virginian" A, L. Smooth; leaves ternate; leaflets 

 ovate or cordate-ovate, lobed or toothed; panicle trichoto- 

 mous, many-flowered, leafy; flowers dioecious or polyga- 

 mous; sepals obovate, smoothish; tails of the achenia long, 

 plumose. Swamps and meadows. July. Leaflets 2-3' long, 



C. Drummondii. Floivers in paniculate corymbs, dioe- 

 cious ; leaves pinnate, silky-villous beneath, sparingly hir- 



