401 ORCUIDACE/E. (ORCHIS FAMILY.) 



pals; column manifest. — Damp mossy woods, on the mountains of North 

 Carolina. July. — Stem 4' - 8' high. Leaves j/- 1 ' long. 



18. PONTHIEVA, 11. Brown. 

 Sepals ami petals nearly alike, the two outer sepals spreading, the upper one 

 connivent with the petals. Petals, like the lip, adnate to the middle of the eol- 

 umn. Lip posterior, clawed, ovate, concave, spreading. Column 2-lobed» 

 beaked. Anther dorsal, linear, stalked, 4-eelled. Pollen-masses 4, linear, pow- 

 dery. — Low herbs, with clustered roots, chiefly broad radical leaves, and green- 

 ish flowers on a pubescent scape. 



1. P. glandulosa, R. Brown. Leaves many-nerved, oblong, spreading, 

 narrowed into a short petiole ; scape slender, many-flowered ; bracts lanceolate ; 

 lateral sepals flat. (Craniehis multiflora, Nutt. Ophrys pubera, Mirhx.) — Low 



19. CYPRIPEDIUM, L. Lady's Slipper. 



Sepals 3", the two lower ones mostly united into one under the lip, spreading. 

 Petals narrower. Lip large, inflated, and sac-like. Column short, 3-lobed. the 

 two lateral lobes each bearing a 2-cclled anther on the under side, the middle one 

 (sterile stamen) petal-like. Pollen granular. Stigma thick, triangular-. — Boot 

 fibrous. Leaves large, plaited, sheathing. Flowers large, mostly solitary, leafy- 

 bracted, nodding. 

 * Stem leafy : sepals and pctah longer than theyellow Up, the latter linear and twisted. 



1. C. ptlbescens, Willd. Pubescent; stem sheathed at the base; leaves 

 4-6, ovate-oblong, acute or acuminate; flowers 1-3; sepals greenish, striped 

 with deeper lines, lanceolate, acuminate, the lower sometimes 2-clcft at the apex ; 

 petals linear, spirally twisted ; lip large (1'- iy long), laterally flattened, spotted 

 within; stigma triangular, obtuse. — Rich woods in the upper districts, and 

 northward. May and June. — Stem 1°- U-° high. Leaves 4' - G' long. Flow- 

 ers inodorous. 



2. C. parviflorum, Salisb. Very near the preceding, but every way 

 smaller: lip half as large, depressed above; stigma triangular, acute; flowers 

 fragrant. — Rich woods in the upper districts. May and June. 



* * Stem leaf;/ : sepals and petals irhit< .flat, obtuse, not longer than the lip. 



3. C. spectabile, Swartz. Pubescent; leaves C>-7, oval, acute; sepals 

 oval or oblong, rather Longer than the lanceolate petals ; lip (IV long) much 

 inflated, white tinged with purple, about as long as the sepals. — Mountains of 

 North Carolina, and northward. May and June. — Stem 2° high, commonly 

 2-flowcred. Leaves 4' -6' Long. Flowers very showy. 



* # * Scape naked, l-Jhwered, 2-hand at the has* 



4. C. acaule, Ait Pubescent; leaves oblong, obtuse; sepals greenish, 

 oblong-lanceolate, acute, nearly as long as the linear petals, much shorter than 



:>■ (2' long) ohovate purple and veiny lip. — Dry woods in the upper dis- 

 tricts, and northward. May and June. — Scape 8'- 12' high. Leaves },° long. 



