Vign a 



Geraniaceae 



623 



eastern part of the state, but it is, no doubt, more or less frequent in bal- 

 last along railroads where I rarely botanized. This species prefers a sandy 

 or sandy, clay soil and is commonly found in ballast along railroads, along 

 roadsides, on wooded slopes, sand bars and sandy shores of streams, on 

 the dunes, and in fallow fields. 



Que. to Minn., southw. to Fla. and Tex. 



2. Strophostyles umbellata (Muhl.) Britt. Map 1283. This species is 

 rare to infrequent and has the habitat of the preceding species. It is pos- 

 sibly restricted to the southern counties. The specimens collected and re- 

 ported from Marshall and Putnam Counties were found in ballast along 

 railroads and may be introduced. All of my specimens are from wooded 

 slopes and fallow fields. 



Coastal Plain from L. I. to La., northw. in the Mississippi Valley to 

 Ind. and Mo. 



3. Strophostyles leiosperma (T. & G.) Piper. (Contr. U. S. Nation. 

 Herb. 22: 668. 1926.) (Strophostyles pauciflora (Benth.) Wats.) Map 

 1284. This species prefers a very sandy or sandy, clay soil. I have infre- 

 quently found it in a few of the southern counties. The reports from Lake, 

 Marshall, and Putnam Counties were of specimens collected in railroad 

 ballast and may have been introduced. The seed of all our species are 

 mealy-pubescent. The pubescence is easily detached in this species while 

 in the preceding species it is persistent. 



Mississippi Vally northw. to Ind. and Minn. 



3905. VIGNA Savi 

 See excluded species no. 410, p. 1069. 



129. GERANIACEAE J. St. Hil. Geranium Family 



Leaves palmately cut or divided into 5 or more lobes or segments or 3-cleft; stamens 



10 (5 in Geranium pusillum) 3924. Geranium, p. 624. 



Leaves pinnate ; stamens 5 3928. Erodium, p. 626. 



