ORCHID FAMILY 319 



with a patch of yellow hairs, column dilated, petal-like, the lid-like anther 

 just below the summit, pollinia 2; flower solitary; terminal, bracted ; leaf 

 solitary, petioled, basal, the stem with 2-3 scales; perennial from a bulb. 

 Stems 4-8 in. high ; leaf ovate to rounded, 1-2 in. long ; 



flowers 1-2 cm. long C. bulbosa 



COELOGLOSSUM Hartman 1820 

 (Gr. koilos, hollow, glossa, tongue) 



Sepals 3, ovate-lanceolate, the lateral petals narrow, linear or thread- 

 like, greenish, lip oblong-spatulate, lobed at the summit, more than twice 

 as long as the sack-like spur, pollinia with long stalks ; flowers greenish in 

 a leafy-bracted spike ; leaves alternate, entire ; leafy-stemmed biennial from 

 a tuber. 

 Stem .5-2 ft. high ; leaves lanceolate to ovate, 2-5 in. 



long ; flowers 6-8 mm. long C. bractedtuin 



CORALLORRHIZA Robert Brown 1813 CORAL ROOT 



(Gr. corallion, coral, rhiza, root) 



PL 43, fig. 2. 



Sepals 3, nearly equal, lateral petals about as long as the sepals, purple 

 to brownish-red, lip whitish, 1-3-ridged, toothed or lobed, spotted or lined, 

 sometimes with a sack or spur, column nearly free, slightly incurved, some- 

 what 2-winged, pollinia 4 in 2 pairs ; flowers in terminal racemes ; leaves all 

 reduced to sheathing scales ; saprophyte or root-parasite with coral-like un- 

 derground stem. 



1. Flowers a dull purple; lip not deeply 3-lobed 



a. Raceme 3-12-flowered; a small spur or sack 



attached to the summit of the ovary C.inndta 



b. Raceme 10-25-flowered ; spur none C. stridta 



2. Flowers brownish-red, 10-30 in a raceme; spur 



distinct, yellowish ; lip deeply 3-lobed C. multi-flora 



CYPRIPEDIUM Linne 1753 LADIES' SLIPPER 



(Gr. kypris, Venus, pedion, boot) 



PL 43, fig. 3. 



Sepals 3, separate or two of them united under the lip, lateral petals 

 linear to lanceolate, greenish-brown, often twisted, lip a large swollen sack, 

 purple, yellow or white, column declined, with an anther on either side and 

 a dilated petal-like sterile stamen above covering the summit of the style; 

 flowers solitary or several, drooping; leaves broad, many-veined; perennial 

 from tufted roots. 



