Class XX. Order II. 209 



Tliis fine plant is found in meadows at Cambridge, and else- 

 where, flowering in July. Root bulbous. Stem one or two 

 feet high, sheathed at base. The plant has only one, long, grass 

 like, sheathing leaf. The spike contains several alternate, pur- 

 ple flowers. Petals five, spreading. Lip of the nectary erect, 

 increasing in width upward, and furnished toward the top with 

 yellow, glandular hairs. Style opposite to this, concave, dilat- 

 ed, supporting a terminal anther. Perennial, 



DUNDRIJl. 



245. CYPRIPEDIUM. 

 CYPRIPEDIUM ACAULE. 2i. Ladies' 1 slipper, 



Scape leafless, one flowered ; root leaves two, 

 oblong, obtuse ; lobe of the style round -rhomboid- 

 al, acuminate, deflexed ; petals lanceolate ; lip 

 longer than the petals, cleft before. Willd. sub 

 syn. 



Syn. CrPKlPEDiUM HUMILE. Siv. Salisb. Willd. 



This singular genus are readily known by their large, in- 

 flated nectary. The present species differs from the rest in 

 having no stem leaves. The leaves are two, springing from 

 the root, large, oval-lanceolate, plaited, downy. Flower com- 

 monly single, terminal, nodding. Petals four, spreading, the 

 two lateral ones narrower, and somewhat waved or twisted. 

 Nectary a large, purple, inflated bag, veined, villous, and long- 

 er than the petals. Style over the base of the nectary, support- 

 ing two lateral anthers on the inside, and ending in a broad, 

 roundish, deflexed, acute lobe, carinated on the inside. Woods. 

 May., June. Perennial. 



