The Flora of the Cayuga Lake Basin 147 



12. Maianthemum Wiggers 



1. M. canadense Desf. False Lily-of-the- Valley. Two-leaved False Solo- 

 mon's Seal. 

 Dry or damp woodlands and banks, on gravelly acid or somewhat calcareous soils ; 

 common. May 25-June 20. 



(•"specially abundant on the crests of the ravines of the basin, and about the peat 

 bogs; frequent under conifers. 



Lab. to Mass. and N. Dak., southw. to N. C, Tcnn., and Iowa, including the 

 Coastal Plain. 



13. Disporum Salisb. 



1. D. lanuginosum (Michx.) Nichols. (Prosartcs lanuginosa of Cayuga Fl.) 



Rich damp woodlands; infrequent. May. 



S. e. corner of Enfield Township ; upper Buttermilk Glen ; hill s. e. of White 

 Church; hill s. e. of Brookton; Caroline, on Bald and Taft Hills (D. !) ; Six Mile 

 Creek, Beech Woods slope (D.) ; McGowan Woods (D.\) ; Fall Creek, near Ithaca- 

 Dryden town line; e. of Etna; Turkey Hill and Rhodes Woods (D.) ; Ringwood ; 

 between Jacksonville and Waterburg. 



Ont. and w. N. Y. to Ohio, southw. to Ga. and Tenn. A plant of the rich lands 

 of the Ohio Basin and the western slope of the Alleghenies. 



14. Streptopus Michx. 

 1. S. roseus Michx. Twisted Stalk. 



Rich damp woodlands, in humus on gravelly, more or less calcareous, soils; fre- 

 quent. May. 



In most of the ravines and swamps of the basin: Michigan Hollow; Newfield 

 Swamp ; Enfield Glen ; Coy Glen ; Six Mile Creek ; McLean Bogs ; Beaver Brook ; 

 and elsewhere. 



Newf . to Man. and Wis., southw. to n. N. J. and Pa., and in the mts. to Ga. ; also 

 from Alaska to Oreg. ; rare or absent on the Atlantic Coastal Plain. 



15. Polygonatum (Tourn.) Hill 

 a. Leaves puberulent beneath, sessile ; flower clusters about 2-flowered ; perianth 9-12 

 (IS) mm. long; filaments papillose-roughened, inserted high on the perianth tube. 



1. P. pubescens 

 a. Leaves glabrous, clasping; flower clusters 2-8-flowered ; perianth (13) 14-19 mm. 



long; filaments glabrous or papillose, inserted at the middle of the perianth tube. 



2. P. biflornm 



1. P. pubescens (Willd.) Pursh. (P. biflornm of Gray's Man., ed. 7, and of 



Cayuga Fl.) Small Solomon's Seal. 



Rich woodlands, in gravelly or stony, nearly neutral, soils; common, and generally 

 distributed. May. 



N. B. and N. S. to Ont. and Mich., southw. to Fla., Tenn., Kans., and Tex. ; mostly 

 absent on the Coastal Plain. 



2. P. biflorum Walt. (P. commutation of Gray's Man., ed. 7. P. giganteum of 



Cayuga Fl.) Great Solomon's Seal. 



Sandy or gravelly, rarely clayey, banks and thickets, in subneutral soil, on dry hill- 

 sides and hilltops, or in alluvial calcareous soils on river banks ; frequent. June. 



Top of hill, Spencer ; crest of North Pinnacle, Caroline ; Inlet Valley, s. of Ithaca ; 

 Enfield Glen; Six Mile Creek; Dwyer Pond; Beebe Lake; ravine between Renwick 

 and McKinneys : and elsewhere. 



W. N. H. to Man. and the Rocky Mts., southw. to Ga., La., N. Mex., and Ariz. ; 

 much less frequent on the Coastal Plain. 



