286 THE FLORA. 
E \(ip SS 
HIE 646 : 
Noe soll ~ “SO s 
Fig. 646. Lady’s-slipper (Cypripedium acaule), whole plant. with its 2 leaves, scape, and 
curious flower. 7. Plan of the flower; s, sepals (outer circle), the 2 lower united; p, the petals; 
4, lip (lower petal); ¢, the anthers, upper one sterile; 0, the 8-celled ovary. 8. The column seen 
rom beneath, with the pistil, two stamens. and the leaf-like sterile one. 9. Flower and bract of 
Jrchis spectabilis. Fig. 650. Its 2 pollen masses exhibited (enlarged). 1. Arethusa bulbosa; 4 
he flower. 2 Its column enlarged, with its lid-like anther opening, showing its pollen-masscs 
yeneath. 
b Fis. in the axils of bracts. Pollen masses 2. Lvs. 1-co. Orchis. Orcuis. 2 
b Flowers bractless. Pollen masses 4, Leaf lonly. Tipuda, Treuna’nria. 
s Rootcoraline, Spur growing to the ovary. Lvs. none. Coral-root. CoraLLoruy’za. 8 
c Root 2 corms. Spnrnone. Leaf], late, radical. Putty-root. APLECTRUM. 
d Flowers 1 only, rose-purple. Lip bearded. Arethusa. ARETHU’SA, 4 
d Fls. racemed, dark-purple, beardless. (Lvs. 0 or few.) Bletia, Burvia, 
e Leafl. Lip sagittate. Column minute. Micros’tylis. Mioros’tTyY xs. 
e Leaves 2, radieal. Lip flat, ascending, Column winged.  Liparis, Lip’ants. 
s Leaves 2, cauline. Lip pendulous, 2-lobed or 2-cleft. Tway-blude, Listewa, 
