158 Karl M. Wiegand and Arthur J. Eames 



bank, Little Salmon Creek; Paine Creek; shore of Utt Point; Big Gully Point; 

 Savannah ; e. of Mud Pond, Conquest ; and elsewhere. 

 Me. to Wis., southw. to Va. ; rare on the Coastal Plain. 



3. S. cernua (L.) Richard. Autumn Ladies' Tresses. 



Springy open places, frequently in drier soil than the preceding, in the Cayuga Lake 

 Basin in distinctly calcareous soils; not uncommon. Aug. 15-Sept. 



Rare or absent in the chestnut soils of the basin, becoming more common in the 

 Freeville and McLean district, and again less frequent n. of Cayuga Lake except in 

 marl regions. Occurs abundantly in actual marl deposits along Fall Creek, and at 

 Malloryville. 



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



The occurrence of this species on the Coastal Plain of N. J. suggests an affinity 

 for acid soils, which is quite in contrast with the apparent soil preference here. 

 This subject has been discussed by Wherry (Rhodora 23:127. 1921), who con- 

 siders the acid-loving form as true 5". cernua whereas the plant of less acid (or 

 calcareous?) soil is var. ochrolcuca (Rydb.) Ames, which Ames can recognize only 

 by its upland habitat and nonpolyembryonic seeds (Rhodora 23:78. 1921). 



4. S. Romanzoffiana Cham. 



Marly bogs ; scarce. July 10-Aug. 15. 



Summit Marsh (D.) ; Brookton Springs (D.) ; Mud Creek, Freeville (D.) ; Mud 

 Pond, McLean Bogs; Newton and Lowery Ponds (£>.!). 



Newf. to Alaska, southw. to Conn., N. Y., the Great Lakes, S. Dak., Colo., Utah, 

 and Calif. ; rare or absent on the Atlantic Coastal Plain. In certain parts of N. E. 

 the plant apparently grows in more acid bogs. 



11. Epipactis (Haller) Boehm. 

 a. Raceme loose ; the saccate lip with elongated tip and flaring or recurved margin. 

 b. Flowers in a 1-sided spike; anther short and blunt; beak of stigma shorter than 

 the body ; perianth 4-4.5 mm. long ; leaves 1-3 cm. long ; raceme 3-7 cm. long. 



1. /:. repens, 



var. ophioides 

 b. Flowers in a loose spiral; anther acuminate; beak of stigma as long as or longer 

 than the body; perianth 5-6 mm. long; leaves 3-8 cm. long; raceme 6-9 cm. 

 long. 2. E. tesselata 



a. Raceme rather densely flowered, scarcely 1 -sided; lip scarcely saccate, elongated, 

 with the margin involute; leaves and flowers larger than in the other species 

 (see also 3d a). [E. decipiens] 



a. Raceme densely many-flowered, terete ; lip strongly saccate, with a short blunt tip ; 

 margin not recurved nor flaring. 3. E. pubescens 



1. E. repens (L.) Crantz, var. ophioides (Fernald) A. A. Eaton. (Goodyera repens, 



in part, of Cayuga Fl.) Rattlesnake Plantain. 



Dry or damp banks in hemlock woods, in slightly acid soils ; rare. Aug. 



Bank below sulphur springs, Enfield Glen, 1881 (C. U. Herb., collector unknown) ; 

 hemlock woods, McLean Bogs, 1894 (W. W. Rozvlce). 



Newf. to Man. and Mont. (Alaska?), southw. to N. E., N. Y., and Mich., and in 

 the mts. to S. C ; probably absent on the Coastal Plain. 



2. E. tesselata (Lodd.) A. A. Eaton. (Goodyera repens, in part, of Cayuga Fl.) 



Rattlesnake Plantain. 



Moist or dry coniferous woods, in humus ; rare. Aug. 



N. w. corner of Michigan Hollow Swamp (Miss L. B. Henderson) ; coniferous 

 woods above Lucifer Falls; near McLean Bogs, 1875 (D? in C. U. Herb.) ; perhaps 

 elsewhere. 



Newf. to Out., southw. to Conn, and N. Y. 



