The Flora of the Cayuga Lake Basin 285 



c. Lobes of the ovary glabrous or nearly so. 

 d. Pedicels 5-18 mm. long; sepals awnless; petals 4-5 mm. long; lobes of 

 the ovary entirely glabrous, transversely wrinkled ; seeds smooth or 

 striate. 5. G. molle 



d. Pedicels 25-75 mm. long; sepals awned ; petals 8-10 mm. long; lobes of 

 the ovary subglabrous, not wrinkled; seeds pitted. [G. columbinum] 



b. Leaves palmately 3-5-divided; divisions 1-2-pinnatifid ; corolla 10-12 mm. long; 

 lobes of the ovary glabrous, wrinkled, separating from the valves of the beak; 

 beak smooth. 6. G. Robertianum 



1. G. maculatum L. Wild Cranesbill. 



Dry gravelly, sandy, or stony banks and borders of woods, in acid or neutral, or 

 less frequently in slightly calcareous, soils; common, and generally distributed, 

 especially about ravines. May-June. 



Cent. Me. to Man., southw. to Ga., Ala., and Nebr. ; less frequent on the Coastal 

 Plain. 



2. G. carolinianum L. (G. carolinianum, in part, of Cayuga Fl.) 



Dry sandy or gravelly noncalcareous soils and rocks ; rare. May. 



Buttermilk Glen, 1915 (C. C. Thomas) ; Stewart Ave., Ithaca, 1916 {H. V. 

 DeMott). 



E. Mass. and Ont. to B. C, southw. to Fla. and Mex., including the Atlantic 

 Coastal Plain. 



3. G. Bicknellii Britton. (G. carolinianum, in part, of Cayuga Fl.) 



In situations similar to the preceding, or perhaps more often in woods and clear- 

 ings, but in more calcareous or richer gravelly soils; rare. May-June 15. 



Near Negundo Woods (£>. in C. U. Herb.) ; s. exposure of ravine bank above 

 second dam, Six Mile Creek (A. R. Bechtel & K. M. W.). 



Newf . to B. C, southw. to N. E., N. Y., Mich., and Utah ; rare or absent on 

 the Atlantic Coastal Plain. 



4. G. pusillum Burm. f. 



A weed in rich soil, cultivated ground, and lawns, and by roadsides ; occasional. 

 June-July. 



S. of Coy Glen; Albany St., Ithaca, 1882 (D.) ; C. U. campus, near Poultry 

 Building and w. of Caldwell Hall; Fiske-McGraw (Chi Psi) grounds, 1885 (D.) ; 

 Forest Home ; Lake St., opposite Percy Field. Largely of recent introduction. 



Mass. and Ont. to B. C, southw. to N. J., N. C, Nebr., and Utah. Adventive 

 from Eu. 



5. G. molle L. 



A weed in lawns ; frequent. June-July. 



Quarry St., Ithaca; C. U. campus, in several places; Girls' Playground, Casca- 

 dilla Glen; and elsewhere. Of recent introduction. 



Me. to Ont. and Ohio, southw. to N. Y. and N. C. ; also on the Pacific coast. 

 Adventive from Eu. 



[G. COLUMBINUM L. LONG-STALKED CRANESBILL. 



A weed of field borders ; rare. 



Near Newfield Glen, 1921 (R. C. Cowles), doubtfully established. 



N. J. and Pa. to Va., also in S. Dak. Native of Eu.] 



6. G. Robertianum L. Herb Robert. 



Damp shaded rocky woods and ravine banks, in calcareous regions ; common. 

 May-Sept. 



Newf. to Man., southw. to N. J., Pa., and Mo.; also in Eurasia and Africa. 



