156 Karl M. Wiegand and Arthur J. Eames 



12. H. fimbriata (Ait.) R. Br. Purple Fringed Orchis. 



In situations similar to the preceding but sometimes in drier soils ; frequent. 

 June 20-July, flowering considerably earlier than the preceding species. 



Mossy hillside n. w. of North Spencer station ; West Danby ; Michigan Hollow ; 

 n. \v. of Varna; Richford; Ellis Hollow; Ringwood ; Malloryville Bog; McLean 

 Bogs; Beaver Brook; and elsewhere; no records from the northern districts. Plants 

 with pure white flowers in Michigan Hollow Swamp (D.). 



Newf. to Ont. and N. Y. (Mich., Small), southw. in the mts. to N. C. ; rare on the 

 Coastal Plain. » 



4. Triphora Nutt. 



1. T. trianthophora (Sw.) Rydb. (See Oakes Ames, Studies in the Family Orchi- 

 daceae, 7:3. 1922. Pogonia trianthophora of Gray's Man., ed. 7. P. pendula 

 of Cayuga Fl.) 



Rich damp or dry woods, in nearly neutral leaf mold ; rare. Aug. 



Cascadilla woods, near the Old Armory, 1922 (W . E. Manning) ; Sheldrake Point, 

 1831 (A. Gray) ; Botrychium Woods, Spring Lake, 1916 (L. Griscom, P. P. Met- 

 calf, & A. H. Wright) ; Westbury Bog, 1916 (same collectors). [Geneva (Dr. J. 

 Smith in Sartwell Herb.).] 



Me. to Wis., southw. to Fla., Mo., and Kans. ; rare or absent on the Coastal Plain. 

 A plant primarily of the rich humus of the interior. 



The plant does not flower every year. Oakes Ames has called attention, apparently 

 with justice, to the desirability of treating the members of the comprehensive genus 

 Pogonia as three genera, thus following numerous other botanists. The distinguish- 

 ing characters are rather too distinct even for those who prefer comprehensive genera. 



5. Pogonia Juss. 

 1. P. ophioglossoides (L.) Ker. 



Peat bogs, in acid soils ; infrequent. June 20-July 20. 



Larch Meadow (D.) ; Freeville (D.) ; Malloryville Bog (D.) ; McLean Bogs 

 (D.) ; Chicago Bog (D.\) ; Miller Bog, Spring Lake; Featherbed Bog. 



Newf. to Minn., southw. to Fla., Kans., and Tex. A characteristic plant on the 

 Coastal Plain. Found also in Japan. 



6. Isotria Raf. 



1. I. verticillata (Willd.) Raf. (Pogonia verticillata of Gray's Man., ed. 7, and of 

 Cayuga Fl.) 



Damp woodlands and peat bogs, in more or less acid soils ; rare. May 20-June 15. 



Acid chestnut soils of the southern hills, and in sandy bogs on the Ontario plain : 

 Caroline, in woods on top of Bald Hill, and w. slope of Taft Hill (D.) ; Danby, 

 in woods on Ball Hill (D.) ; bog e. of Duck Lake (L. Griscom, F. P. Metcalf, & 

 A. H. Wrightl) ; Featherbed Bog (same collectors!). 



Mass. to Wis., southw. to Fla., including the Coastal Plain and mostly confined to 

 the region east of the Allegheny Mts. Thought by some botanists to be a calciphile. 



7. Calopogon R. Br. 11 

 1. C. pulchellus (Sw.) R. Br. 



Peat and marl bogs, in somewhat acid soils ; scarce. June 20-July 20. 



Larch Meadow (D.) ; Freeville (D.) ; Woodwardia Bog; Malloryville Bog (D. !) ; 

 McLean Bogs (D.\) ; Beaver Brook; marly moor, Lowery Ponds; Pout Pond bog; 

 Miller Bog, Spring Lake; Featherbed Bog. 



Newf. to Alinn., southw. to Fla. and Mo. A characteristic plant on the Coastal 

 Plain. 



The name Calopogon is included in the nomina conservanda of the International Code. 



