260 ORCHIDACEAE 



23. Corallorhiza [Haller] Chatelain 



Lip not deeply 3-lobed. 



Lip 2-lobed or 2-toothed above the base. I. C. Corallorhiza. 



Lip entire or merely denticulate. 



Flowers about 6-8 mm. long; lip not notched; column nar- 

 rowly winged. 2. C. odontorhiza. 

 Flowers 14 mm. long; lip notched; column manifestly 



winged. 3. C. Wisteriana. 



Lip deeply 3-lobed; flowers 12-18 mm. long. 4. C. maculala. 



4. C. Corallorhiza (L.) Karst. In cold wet woods: N. S. to 

 Alaska, south to N. Y. and N. J. and in the mountains to 

 Ga. ; west to Neb. and Wash. 

 Conn. Rare and local in the northwestern part of the state, and in 



northern Middlesex Co. 

 N. Y. The higher Catskills. 

 N. J . Reported but not definitely known from Bergen and Warren 



counties; Stanhope, Morris Co. and at Avon on the coast. 

 Pa. Wayne Co. 



Tertiary, o: Cretaceous, rare: Older Formations, increasing but 

 not common northward. Not south of the moraine. H7-i86days. 

 500 2,800 ft. 



2. C. odontorhiza (Willd.) Nutt. In woods: Me. to Mich., Fla. 



and Mo. 



Conn. Not very common along the coast, decreasing northward. 

 N. Y. L. I. and S. I. and up the Hudson Valley to West Point. 

 N. J. Cape May, Gloucester, Camden and Mercer counties, thence 



increasing and common northward; not in the pine-barrens. 

 Pa. Northampton, Montgomery, Bucks and Chester counties. 



Tertiary, rare: Cretaceous, scattered: Older Formations, in- 

 creasing northward at moderate elevations. 138-204 days. Sea 

 level-1,243 ft. 



3. C. Wisteriana Conrad. In woods: N. Eng. and Pa. to Fla. 



and Tex. 



Known in our range only from Chester and Philadelphia counties, 

 Pa., a region near the " fall line," with a growing season of about 

 204 days and at about sea level; and from Swedesboro, Gloucester 

 Co. 



C. maculata Raf. (C. multiflora Nutt.). In woods: N. S. to 

 B. C, south to Fla., Mo. and Col. 

 Throughout the range except in the pine-barrens of N. J. and 



