164 



Ranunculaceae 



Myosurus 



50 



Map 955 



Myosurus minimus L. 



3. Clematis virginiana L. Virgins-bower. Map 954. Infrequent or 

 rarely frequent throughout the state. It is found in moist ground, gen- 

 erally along streams, about lakes, and along fences. 



The stems of my specimens are more or less fluted and more or less 

 densely appressed-pubescent. The upper and lower surfaces of the leaves 

 vary from sparingly to densely pubescent, the lower surface sometimes 

 velvety to the touch. 



N. S. to Man., southw. to Ga. and La. (Brown. Torreya 29: 159. 1929.) 



2543. MYOSURUS L. 



1. Myosurus minimus L. Mousetail. Map 955. I have found this 

 species in five widely separated places in Posey County. I found it abundant 

 in very sandy soil in a forest planting of about 15 year old chestnut about 

 4 miles north of Mt. Vernon; in a pasture field just south of New Har- 

 mony Cemetery; in a sandy by-road along the Wabash River about 3 

 miles south of New Harmony; frequent in a fallow cornfield on the south 

 side of Pitcher "Lake" about 5 miles northwest of Mt. Vernon; and com- 

 mon in a fallow cornfield along Black River about 2 miles east of Griffin. 

 I found it also in Gibson County, in a fallow cornfield 6 miles west of 

 Princeton, and recently Kriebel has collected it in Daviess County. There 

 is a specimen from Montgomery County in the herbarium of Wabash Col- 

 lege. The plant is very inconspicuous and since I have rarely botanized its 

 habitat, it may be more frequent than my experience indicates. Schneck 

 reported it from the Lower Wabash Bottoms and Benedict & Elrod re- 

 ported it from Cass County, remarking that it was "scarce." In 1937 

 I found it in its habitat in Newton County. 



I am of the opinion that if sandy, fallow cornfields are worked carefully, 

 its distribution would be greatly extended. 



Nat. of Eu. and reported from the U. S. at widely separated stations. 

 Ont., B. C, southw. at Norfolk, Va., Fla., Tex., N. Mex., and 111. Some 

 of the reports may be referable to some other species. For its distribution 

 see Greene (Amer. Midland Nat. 3: 311-316. 1914). 



