344 ORCHIDACE^E. 



Wet woods. Can. to Virg. ; rare. June, July. '2J-. Scape 5^-8 inches 

 high, 3 5-angled, with a bulb at the base. Flowers yellowish-green, in a ter- 

 minal raceme, smaller but more numerous than in the preceding. 



Smaller Liparis. 



2. MICROSTYLIS. Nutt. Adder's Mouth. 

 (From the Greek f"*poj, little, and ervlos, a column.} 

 Perianth with the segments -distinct ; the two inner lateral 

 ones filiform or linear. Lip widely spreading, concave, sagit- 

 tate or auriculate at the base. Column very small. Pollen- 

 masses 4, loose. 



1. M. ophioglossoides NiM.: scape or stem with one ovate, clasping leaf 

 near the middle ; flowers in an obtuse raceme, much shorter than the pedi- 

 cels. MaLaxis ophioglossoidS Willd. 



Wet grounds, near roots of trees. Can. to Virg. July. 1}.. Stem or scape 

 6 10 inches high, 1-leaved, with ovoid bulb at the base. Leaf about 2 inches 

 long. Flcnoers numerous, minute, greenish- white, in a short terminal raceme, 

 many abortive. Common Adder' s-mouth. 



2. M. monophyllos Lind. : scape or stem with a single ovate-elliptic leaf 

 near the base ; flowers in a slender elongated raceme, about as long as the 

 pedicels. Mcdaxis 'monophyllos Willd. 



Shady swamps. Herkimer and Oneida counties, N. Y. July. ty. Stem 

 or scape 2 8 inches high, triangular, somewhat winged, with an ovoid bulb at 

 the base. Leaf solitary, (rarely 2.) about 2 inches long, petiolate. Flowers nu- 

 merous, in an elongated raceme, several abortive. Smaller Adder' s-inouth. 



3. CALYPSO. Salisb. Calypso. 



(A poetical name.) 



Segments of the perianth ascending, secund. Lip ventrieose, 

 spurred beneath near the end. Column petaloid, dilated. Pol- 

 len-masses 2, each 2-parJed, sessile. 



C. borealis Salisb. C. Americana Brown. Limodorum, boreale Willd. 

 Sphagnous swamps, near Brownville. Jefferson county, and Lowville, Lewis 

 county, N. Y. W. A. Wood and F. B. Hough. Ver. Montreal, and various parts 

 of British America. Near the outlet of Lake Michigan and W. to the Columbia 

 River. Scape 6 8 inches high, sheathed, with a fleshy bulb at base. Leaf 

 solitary, radical. 1 2 inches long, roundish-ovate, petiolate, plaited. Flower 

 solitary, terminal, about an inch long, purplish. A rare and beautiful plant, 

 resembling a Cypripedium. Calypso. 



4. CORALLORHIZA. Brown. Coral-Root. 

 (From the Greek KopaAAior, coral, and f>a, a root ; the root being coral-like.) 



Perianth with the segments nearly equal and connivent. Lip 

 produced at the base underneath ; the spur short and adnate 

 to the ovary. Column free. Pollen-masses 4, oblique, not 

 parallel. 



1 . C. innata Brown : scape few-flowered ; lip oblong, bi-dentate at the 

 base, the apex recurved and ovate ; spur obsolete, adnate ; capsule elliptic- 

 obovoid. C. verna Nutt. Cymbidium Corattorhizon Willd. 



