FABACEAE 405 



N. J. Rare in the pine-barrens at Winslow Junction and at Landis- 



ville, common in the region north and west of the barrens; 



Morris and Hunterdon counties. 

 Pa. Northampton, Bucks, Philadelphia, Delaware and Chester 



counties. 



Tertiary, rare on Beacon Hill, increasing elsewhere: Cretaceous, 

 common: Older Formations, scattered and rare. 189-220 days. 

 About sea level. 



14. M. Dillenii (Darl.) Kuntze. Woods: Me. and Ont. to Minn., 



Va., Ky., Mo. and Tex. 



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

 local and probably introduced. 



15. M. canadensis (L.) Kuntze. Thickets and river banks: 



N. B. to Man., N. Car., Mo. and Ind. Terr. 



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

 local and probably introduced, always increasing northward. 



16. M. rigida (L.) Kuntze. In dry soil: N. H. to Fla., Mich., 



Kan. and La. 



Throughout the range, more common southward and less common 

 northward than elsewhere. 



17. M. marylandica (L.) Kuntze. In dry soil: Ont. to Mass., 



Fla., Mich, and La. 



Throughout the range, but nowhere common, decreasing north- 

 ward . 



18. M. obtusa (Muhl.) Vail. Dry soil: Ont. to Mass., Fla., 



Mich, and Tex. 



Common throughout the range, but rare or perhaps wanting from 

 the Catskills and the mountains of Pa. 



17. Lespedeza Michx. 



1. Perennial; native species; stipules and calyx-lobes narrow. 



Flowers of 2 kinds, the larger perfect but seldom fruitful, the 

 smaller, usually apetalous, pistillate and fertile. 

 Petaliferous flowers 1-6. 



Stems soft downy, with short spreading hairs. 1. L. procumbens. 



Stems glabrate or sparingly pubescent. 



Stems prostrate or trailing; stipules 2-4 cm. long. 2. L. re pens. 

 Stems upright; stipules 5-8 mm. long. 3. L. violacea. 



Petaliferous flowers few-many. 



Many of the peduncles elongate and exceeding their 

 subtending leaves. 

 Leaves densely velvety beneath. 4. L. Brittonii. 



