154 Karl M. Wiegand and Arthur J. Eames 



c. Leaves 2, basal, oval or orbicular, spread flat on the ground. 



d. Lip lanceolate, 1 cm. long ; spur 18-20 mm. long ; scape bractless. 



6. H. Hookeri 

 d. Lip linear, 1.5-2 cm. long; spur 22-37 mm. long; scape bracted ; leaves usu- 

 • _ ally larger. 7. H. orbiculata 



a. Lip fringed. 



b. Bod}' of lip oblong, fringed along sides and tip. 

 c. Flowers yellow; fringe of lip 3-5 mm. long. 8. H. ciliaris 



c. Flowers white; fringe of lip 0.5-1.5 mm. long. 9. H. blephariglottis 



b. Body of lip 3-parted. 



c. Flowers greenish; divisions of lip deeply cleft into a long capillary fringe. 



10. H. lacera 

 c. Flowers purple or lilac; divisions of lip fan-shaped, fringed at the truncate 

 apex. 

 d. Lip 1-1.2 cm. wide; flowers deep purple. 11. H. psycodes 



d. Lip 1.8-2 cm. wide, more deeply fringed; flowers lilac. 12. H. fimbriata 



1. H. clavellata (Alichx.) Spreng. (H. tridentata of Cayuga Fl.) 



Sphagnum bogs and boggy meadows in somewhat acid soil, apparently in most 

 cases on a calcareous or even a distinctly marly substratum; scarce. July 15-Aug. 15. 



Ringwood; Mud Creek, Freeville (£>.!); McLean Bogs; Beaver Brook; Freeville 

 Bog (D.) ; Westbury Bog; Featherbed Bog; Spring Lake; moor of Junius marl 

 ponds. 



Newf. to Minn., southw. to Fla. and La., including the Coastal Plain. 



Spurless plants occur at Mud Creek (D. !) and Ringwood. The soil preference of 

 this species is perplexing. The plant grows in calcareous bogs here, but occurs in 

 acid bogs on the Coastal Plain. However, in N. J. it is really abundant only in the 

 pine-barren region, where the soil is presumably impregnated with salts. 



2. H. bracteata (Willd.) R. Br. (H. viridis, var. bracteata, of Cayuga Fl.) 



Damp woodlands, in rich, somewhat acid (?) humus over calcareous soils; rare. 

 June. 



Ravine n. of Buttermilk Glen? (D.) ; rich woods s. e. of Duck Lake (F. P. Metcalf 

 & A.H. Wright). 



N. S. to Alaska, southw. to Pa. and Nebr., and in the mts. to N. C. ; apparently 

 rare or absent on the Atlantic Coastal Plain. Found also in e. Asia. 



3. H. flava (L.) Gray, var. virescens (Muhl.) Fernald. (See Rhodora 23 : 14S. 



1921. Peridaria virescens of Cayuga Fl.) 



Low woods and thickets, in rather light but somewhat acid soils ; scarce. June 20- 

 July 20. 



Headwaters Swamp {A. H. Wright) ; " open meadow, with club mosses, between 

 Bald Hill and Taft Hill, Caroline" (D.) ; drv pasture s. of Brookton; Dart Woods 

 (£>.); South Hill Marsh; Inlet Marshes (£>.' in C. U. Herb.); between Fall Creek 

 and Cayuga Lake (F. C. Curtice) ; Ringwood; n. e. of Hanshaw Corners; Townley 

 Swamp; Botrychium Woods, Spring Lake; e. of Duck Lake. 



N. S. to Minn., southw. to Fla., La., and Mo. ; apparently infrequent on the Coastal 

 Plain. 



4. H. hyperborea (L.) R. Br. 



Boggy and springy places, in calcareous soils, rarely in the rich soils of calcareous 

 woodlands; frequent. June 15-Aug. 15. 



S. of Caroline Depot; Michigan Hollow Swamp; w. of Key Hill; Enfield Glen; 

 headwaters of Six Mile Creek; McGowan Woods; Ellis Hollow; Ringwood; Mud 

 Creek, Freeville ; Malloryville ; McLean Bogs ; Beaver Brook ; Westbury Bog. 



Iceland, (Greenland?), and Newf. to Alaska, southw. to Pa., Xebr., Colo., and 

 Oreg. ; rare or absent on the Atlantic Coastal Plain. 



