ORCHIDACEAE. 





3. Cypripedium reginae Walt. Showy 

 Ladies' Slipper. (Fig. 1090.) 



Cypripedium reginae Walt. Fl. Car. 222. 17 

 Cypripedium album Ait. Hort. Kew. 3: 303. 1789. 



Cypripedium spectabile Salisb. Trans. Linn. Soc. i: 

 78. 1791. 



Stem stout, i-2 high, leafy to the top. 

 Leaves elliptic, acute, $'-"]' long, \'-tf 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 

 i x long, variegated with purple and white stripes; 

 stamen cordate-ovate. 



In swamps and woods. Nova Scotia to Ontario 

 and Minnesota, south to Georgia. June-Sept. 





4. Cypripedium candidum Willd. Small 

 White Ladies' Slipper. (Fig. 1091.) 



Cypripedium candidum Willd. Sp. PI. 4: 142. 1805. 



Stem 6 / -i2 / high, leafy. Leaves 3 or 4, elliptic 

 or lanceolate, acute or acuminate, $'-5' long, 8"- 

 i6 // wide, with several obtuse sheathing scales be- 

 low them; bracts i / -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 io /x 

 long; sterile stamen lanceolate. 



In bogs and meadows, New York and New Jersey to 

 Minnesota and Missouri. May-July. 



5. Cypripedium hirsutum Mill. 



Large Yellow Ladies' Slipper. 



(Fig. 1092.) 



Cypripedium hirsutum Mill. Card. Diet. Ed. 8, 



no. 3. 1768. 

 Cypripedium pubescens Willd. Sp. PI. 4: J43- 



1805. 



Stems leafy, i-2 high. Leaves oval or 

 elliptic, $'-5' long, i^ / ~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, i / -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 Qntario 

 and Minnesota, south to Alabama and Nebr 

 Ascends to 4000 ft. in Virginia. Petals often 

 elongated. May-July. 



