458 ORCHIDACEAE. 
3. Cypripedium reginae Walt. Showy 
Ladies’ Slipper. (Fig. 1090. ) 
Cypripedium reginae Walt. Fl. Car. 222. 1788. 
Cypripedium album Ait. Hort. Kew. 3: 303. 1789. 
Cypripedium spectabile.Salisb. Trans. Linn. Soc. 1: 
78. 1791. 
Stem stout, 1°-2° high, leafy to the top. 
Leaves elliptic, acute, 3/-7’ long, 1/-4’ wide. 
flowers 1-3; sepals round-ovate, white, not 
longer than the lip, the lateral ones united for 
their whole length; petals somewhat narrower 
than the sepals, white; lip much inflated, over 
1’ long, variegated with purple and white stripes; 
stamen cordate-oyate. 
In swamps and woods, Nova Scotia to Ontario 
and Minnesota, south to Georgia. June-Sept. 
4. Cypripedium candidum Willd. Small 
White Ladies’ Slipper. (Fig. rogr.) 
Cypripedium candidum Willd. Sp. Pl. 4: 142. 1805. 
Stem 6/-12’ high, leafy. Leaves 3 or 4, elliptic 
or lanceolate, acute or acuminate, 3/-5’ long, 8’/— 
16’ wide, with several obtuse sheathing scales be- 
low them; bracts 1/-2/ long, lanceolate; flower soli- 
tary; sepals lanceolate, longer than the lip, green- 
ish, purple spotted; petals somewhat longer and 
narrower than the sepals, wavy-twisted, greenish; 
lip white, striped with purple inside, about 10’ 
long; sterile stamen lanceolate. 
In bogs and meadows, New York and New Jersey to 
Minnesota and Missouri, May-July. 
5. Cypripedium hirsttum Mill. 
Large Yellow Ladies’ Slipper. 
(Fig. 1092.) 
Cypripedium hirsutum Mill. Gard. Dict. Ed. 8, 
no. 3. 1768. 
Cypripedium pubescens Willd. Sp. Pl. 4: 143. 
1805. 
Stems leafy, 1°-2° high. Leaves oval or 
elliptic, 3/-5’ long, 11%4’-3’ wide, acute or 
acuminate; sepals ovate-lanceolate, usually 
longer than the lip, yellowish or greenish, 
striped with purple; petals narrower, usually 
twisted; lip much inflated, 1/-2’ long, pale 
yellow with purple lines; its interior with a 
tuft of white jointed hairs at the top; sterile 
stamen triangular; stigma thick, somewhat 
triangular, incurved. 
‘In woods and thickets, Nova Scotia to Ontario 
and Minnesota, south to Alabama and Nebraska. 
Ascends to 4ooo ft. in Virginia. Petals often 
elongated. May-July. 
