GERANIACEAE 415 



4. G. rotundifolium L. In waste places: N. Y. and Mich. 



Adventive from Europe. 



Known only as a rare weed near the metropolis; not recently 

 collected. 



5. G. dissectum L. In waste places: E. N. Am. Naturalized 



from Europe. 



Rare as a weed near N. Y. City, perhaps elsewhere. 



6. G. carolinianum L. In barren soil : E. N. Am., Mex., Bermuda 



and Jamaica. 



Throughout the range except in the pine-barrens, there rare and 

 probably introduced. 



7. G. columbinum L. In fields and waste places: N. J. to Va. 



and S. Dak. Native of Europe. 



Rare as an adventive weed in N. J. and Pa. 



8. G. Bicknellii Britton. In woods: N. S. to B. Col., N. Y., 



Mont, and Wash. 



Known definitely only from near Woodmere and Aqueduct, L. I., 

 Van Cortlandt Park, N. Y. City, and from Canaan Mt., Conn. A 

 rare species. 



9. G. maculatum L. In woods: Newf. to Man., Ga. and Kan. 



Common throughout the range except in the pine-barrens; there 

 rare or wanting. 



G. pyrenaiciim L. has been collected at Bethlehem, Pa., presumably as a waif. 



3. Erodium L'Her. 



Sepal-tips not bearing bristle-like appendages. 1. B. moschatum. 



Sepal-tips bearing 1 or 2 bristle-like appendages. 2. E. cicutarium. 



1. E. moschatum (Burm. f.) L'Her. In waste places: E. N. S. 



and the Pacific Coast. Naturalized from Europe. 

 Rare on waste ground near our larger cities. 



2. E. cicutarium (L.) L'Her. In fields and waste places: S. 



Canada, N. S. Mex., and Cent. Am. Introduced from 

 Europe. 

 Locally common as a weed. 



E. malachoides Willd. has been collected near the larger cities, scarcely persistent. 



