326 Class XX. Order I. 



Syn. POGONIA VERTICILLATA. BrOWU. 



From six to twelve inches high, with a single whorl of smooth, 

 oval-lanceolate leaves at the top of the stem. Above this is a sin- 

 gle flower, the three outer petals of a greenish brown, linear, 

 and about two inches long ; inner petals short, oblong, obtuse. 

 Lip spreading, crested in the middle, undulated, at the end. At 

 Medfield, and at Brooklyn, Connecticut. July. Perennial. 



336. CYMB1DIUM. 

 CYMBIDIUM PULCHELLUM. Siv. Tuberous Cymbidium. 



Leaves radical, ensiform, nerved ; scape few flower- 

 ed ; lip erect, narrowed' at base, with an expanded 

 border, and a concave hairy disc. Sio. 



Syn. LIMODORUAI TUBEROSUM. L. 



This 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, purple 

 flowers. Petals five, spreading. Lip of the nectary erect, in- 

 creasing in width upward, and furnished toward the top inside 

 with yellow, glandular hairs. Style opposite to this, concave, 

 dilated, supporting a terminal anther. Perennial. 



337. CORALLORHIZA. 



CORALLORHTZA ODONTORHIZA. Nutt. Dragon's ClttW. 



Lip entire, ovate, obtuse, crenulate ; spur obsolete, 

 adnate to the germ ; stem leafless. 



Syn. CTMBIDIUM ODONTORHIZON. Willd. 



A singular, erect, leafless, fleshy plant of the woods. Stem 

 fleshy, particularly at the root, smooth, somewhat furrowed, leaf- 

 less, with several close sheaths. Spike many flowered. Germs 

 inversely ovate, compressed, striated. Petals five, of a brown- 

 ish green, erect or spreading. Lip of the nectary as long as the 

 petals, ovate, declined, a little curled at the edge, white with 

 irregular, purple spots. In dark, moist woods. July, August. 

 Perennial. 



