568 



ROSACEAE 



Waldsteinia 



Waldsteinia fraqarioides 



Tratt 



50 



Map 1159 



Geum vernum (Raf.) T & G. 



mon throughout the state in dry and moist soil in almost all kinds of 

 habitats. It becomes abundant in old fallow fields. 



N. S., sw. N. B., s. Que., s. Ont. to Minn., southw. to N. C, Tenn., s. Mo., 

 and Okla. 



8a. Potentilla simplex var. argyrisma Fern. (Rhodora 33: 191. 1931.) 

 I have this variety from Warren County on a steep, gravelly slope along 

 the railroad west of Covington, and from Benton County in a prairie 

 habitat. 



Pa. to Ky. and 111. 



3363. WALDSTEINIA Willd. 



1. Waldsteinia fragarioides (Michx.) Tratt. Barren-strawberry. Map 

 1158. Extremely local in this state. It has been reported from only Clark 

 and Jefferson Counties. I found it in talus at the base of a cliff along Little 

 Blue River near the site of Carnes Mill about 2 miles south of Grantsburg 

 in Crawford County; in talus on rocky ledges of the slope of Buck Creek 

 where the creek parallels the road north of Dogwood in Harrison County ; 

 and in talus of the rocky slope of the North Fork of the Muscatatuck River 

 about half a mile above Vernon, Jennings County. 



N. B., Ont. to Minn., southw. to Ga., Ind., and Mo. 



3365. GEUM L. Avens 



[Fernald. Critical plants of Ontario and Michigan. Rhodora 37: 292- 

 295. 1935.] 



Styles glabrous; calyx bractless; heads conspicuously stalked in the calyx; flowering 



in May \. G. vernum. 



Styles more or less pubescent (rarely one or more glabrous); calyx bracteolate; heads 

 sessile in the calyx (short-stalked in G. rivale) ; flowering later than May. 

 Calyx lobes erect, purplish without; petals somewhat purplish, obovate with a long 



claw, 7-10 mm long; lower segment of styles densely long-pubescent 



2. G. rivale. 



