ORCHIDACEAE 255 



Stem leafy; lower leaves elongated, mostly persistent through 

 the flowering season. 

 Lip glabrous without, of an oblong type, the base not 



dilated. 4. /. praecox. 



Lip pubescent without, of an ovate type, the base 



dilated. 5. I. vernale. 



Stem a scaly scape; leaves basal, mostly withering before the 

 flowering season. 

 Root a single tuber; spike about 2.5 cm. long. 6. I. Beckii. 



Root a collection of tubers; spike 2-7 cm. long. 7. /. gracile. 



1. I. striatum (Rydb.) House (G. stricta Rydb.). In bogs: Newf. 



to Alaska, south to Me., Pa., Minn, and Col. 



Known only from a single station near Norfolk, Litchfield Co., 

 Conn., a region at about 1,200 ft., with a growing season of 145 

 days, and underlaid by Becket Gneiss; and from Copake Falls, 

 Columbia Co., N. Y. 



2. I. plantagineum (Raf.) House (G. plantaginea (Raf.) Rydb.). 



Moist banks and woods: N. S. to Minn., south to Va. and 



Mich. 



Conn. Rare and local in New London, Middlesex, Hartford, 

 Fairfield and Litchfield counties, increasing northwestward. 



N. Y. Woodmere, L. I.; Dutchess Co., perhaps increasing north- 

 ward. 



N. J. Rare and local in Sussex, Warren, Burlington and Cape May 

 counties. 



Pa. Cedar Creek, Lehigh Co. 



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



northward. 1 17-153 days. Sea level-650 ft. 



3. I. cernuum (L.) House (G. cernuua (L.) Kuntze. G. ochro- 



leuca Rydb.). In meadows and swamps: Newf. and Nov. 

 Scot, to Ont. and Minn., south to Fla. and N. Mex. 

 Throughout the range. 



4. I. praecox (Walt.) House (G. praecox (Walt.) Kuntze). In 



grassy places: S. N. J. to Fla. and Tex. 



Apparently confined, in our region, to the coastal plain of N.J. 

 Records of the species from further north mostly apply to the 

 following. 



5. I. vernale (Engelm. & Gray) House (G. linearis Rydb.). In 



meadows, sometimes in dry soil: Mass. to Fla. and N. Mex., 

 northward through the Miss. Valley to 111. and Kan. 



