ORCHID FAMILY. 



Leaf i, basal, unfolding after the- flowering time 

 I- lowers long-spurred; lip .vlobed 

 Flowers not spurred; lip j-ridged 



Plants with coralloid roots, bulbleM, the ieavrii rednccd to nlrt. 

 Pollinia 4, in 2 pairs; (lowers gihlious ,,r s, (l ,ti, ,t 

 Pollmia 8, united; flowers not gibbous nor *,>. 



437 







i. CYPRIPEDIUM L. Sp. PI. 95,. ,753. 



Glandular-pubescent herbs, with leafy stems or scape* and tufted roots of thick 

 ives large, broad, many-nerved. Flowers solitary or several, drooping Urn. showy 

 pals spreading, separate, or 2 of them united under t! :p . fcjl, inflated aflr 



olumn declined, bearing a sessile or stalked anther on each tide and 

 terile stamen above, which covers the summit of the sty!, ; , granuUr. itboata 



idicle or glands. Stigma terminal, broad, obscurely 3-lobed. [Name Greek. Venn*' sock 

 buskin.] 



About 40 species, natives of temperate and tropical regions. Beaide* the follow in* * 



>ecur in western North America. 

 Sepals separate; stem leafy, i -flowered. 



:il sepals more or less united. 

 Plant 2-leaved; scape i-flowered. 

 Stem leafy to the top, i-several-flowered. 

 Sepals and petals not longer than the lip. 

 Sepals and petals longer than the lip. 

 Sterile stamen lanceolate; lip white. 

 Sterile stamen triangular; lip yellow. 

 Lip i^'-2' long, pale yellow. 

 Lip 7" -i 5" long, bright yellow. 



1. Cypripedium arietinum R. Br. 



Ram's-head Ladies' Slipper. 

 (Fig. 1088.) 



Cypripedium arietinum R. Br. in Ait. Hort. Kew. lid. 



2, 5: 222. 1813. 



Stem 8 / -i2 / high, i-flowered. Leaves 3 or 4, el- 

 liptic or lanceolate, 2 / ~4 / long, %'-$' wide; sepals 

 separate, lanceolate, 8 // -io // long, longer than the 

 lip; petals linear, greenish brown, about as long as 

 the sepals; lip 7 // -8 // long, red and white, veiny, 

 prolonged at the apex into a long blunt spur, some- 

 what distorted at the upper end which resembles a 

 ram's head, whence the specific name. 



In cold and damp woods, Quebec to Ontario. New 

 York and Minnesota. Ma}--Aug. 



2. Cypripedium acaiilc Ait M 

 Flower. Noah's Ar^ 

 Ladies' Slipi* -:. 1089.) 



a^jiilf Ait II 

 Scape 6'-i2' high, i-flowrred. Leave* a, 

 basal, elliptic, 6'-8' long, i'-j' wide, thii 

 casionally a smaller leaf i bon *?pe; 



sepals greenish purple, spreadu loog. 



lanceolate, the 2 lateral one* united; petal* nar- 

 rower and somewhat longer than the rpal. 

 lip often over 2' long, somewhat ohorotd. folded 

 inwardly above, pink with darker vein* or 

 sometimes white, the upper part of 

 surface crested with long white hair*; tcrile 

 stamen triangular, acuminate, keeled laaide. 



in - 

 tario -outl'i to North 



Ascends to i>.. ft 

 OI1 n, ( >rmct and on th* * 



tten tipiH-.l with .carlet (land*. 

 fragrant May June 



