The Flora of the Cayuga Lake Basin 383 



Westbury Bog (F. P.M. & K M. W.) ; arbor vitae swamp e. of Clyde (F. P. M. & 

 K. M. W.). 

 Lab. to Wis., southw. to n. Conn, and N. Y. 



13. G. Claytoni Michx. (Including G. C, var. subbiflomm Wicgand, as to eastern 

 specimens. G. trifidnm of Cayuga Fl.) 



Borders of bogs, marshes, ditches, and shores, in somewhat acid or neutral soils; 

 fairly common. July-Aug. 



Spencer Lake; w. of Key Hill; s. of Caroline Depot; Inlet Marshes ; Six Mile 

 Creek ; near Woodwardia Bog ; Freeville Bog ; McLean Bogs ; Chicago Bog ; near 

 Townley Swamp; Junius bogs; Slayton Pond; Mud Pond, Conquest; and elsewhere. 



Newf. and N. Y. to Mich, and Nebr., southw. to Fla., Mo., and Tex., including the 

 Coastal Plain. 



14. G. trifidum L. (G. trifidnm, var. pusillum, of Cayuga Fl.) 



Borders of bogs and boggy shores of lakes, often on fallen logs, in calcareous 

 regions ; scarce. July 15-Aug. 



Shore of Spencer Lake and in exsiccated places toward Summit Marsh ; Taughan- 

 nock Point ; Dryden Lake ; Mud Pond, McLean Bogs ; Red Mills ; Junius marl 

 ponds. 



Newf. and Lab. to B. C, southw. to n. and w. N. E., cent. N. Y., Ohio, Mich., 

 and Colo. ; rare or absent in granitic N. E. and on the Atlantic Coastal Plain. 

 Found also in Eurasia. 



In 1920 an exsiccated swale near the maple grove north of Spencer Lake was 

 'found to be carpeted with a Galium which resembled in every respect material at 

 hand of G. brevlpes Fernald and Wiegand (see Rhodora 12:78. 1910). The 

 sporadic occurrence of this plant so far from its nearest known station in eastern 

 Maine suggests that this may be only a form of some species growing in this 

 locality. In previous years, when the swale was less dry, G. trifidum was found 

 there, and a frequent tendency for the short pedicels to curve near the tip suggests 

 that the plant in question may represent an ecological or a pathological condition of 

 G. trifidum. 



2. Sherardia (Dill.) L. 



1. S. arvensis L. Field Madder. 



A weed in lawns ; rare. June-July. 



C. U. campus, near w. end of Morse Hall, 1914 (C. C. Thomas), and in front of 

 Roberts Hall, 1915-1920 {A. J. E.). 



N. S. to Out., southw. to N. J. and Ohio. Adventive from Eu. 



3. Mitchella L. 

 1. M. repens L. Partridge Berry. 



' Dry, rather sterile, gravelly or sandy woods of various types, without apparent 

 reference to the lime content of the soil ; common. June 25- July 25. 



Generally distributed throughout the basin, except in the richer soils and clays. 

 Plants with leafy berries: Cascadilla Creek, 1880 (H. B. Lord) and 1881 (D.), 

 and near Brookton, 1881 (D.). Plants with white berries (forma leucocarpa Bissell, 

 see Rhodora 13:32. 1911) : woods, McLean Bogs, 1883 (O. E. Pcarce, D. !). 



N. S. to Ont. and Minn., southw. to Fla., Ark., and Tex., including the Coastal 

 Plain. 



4. Cephalanthus L. 



1. C. occidentalis L. Buttonbush. 



In shallow water of swamps and marshes, more rarely about bogs ; frequent. Julv 

 10-Aug. 15. 



