Andropogon 



Andropogoneae 



179 



50 



Map 332 



Andropogon furcatus Muhl. 



Map 333 

 Andropogon Elliottii Chapm. 



53 



Map 334 



Andropogon virginicus L. 



scoparius var. frequens, Andropogon scoparius var. littoralis, Andropogon 

 scopaj'ius var. polycladus, and Andropogon scoparius var. villosissimus 

 have been reported from Indiana but Buhl (Amer. Midland Nat. 16: 250. 

 1935) refers all of them to the typical form. 



Plants along Lake Michigan, growing on the bases of the low dunes in 

 West Gary, present, in the field, a striking difference because they are 

 smaller and very glaucous. However, an examination of the floral parts 

 shows them to be identical, or nearly so, with the typical form. 



Maine, Que. to Alberta and Idaho, southw. to Fla. and Ariz. 



2. Andropogon furcatus Muhl. (Andropogon provincialis Lam. of 

 Deam, Grasses of Ind.) Big Bluestem. Map 332. Found sparingly 

 throughout the state except in the prairie areas where it is common and 

 where, before cultivation, it usually formed complete stands over all of the 

 drier parts. This grass prefers a rather dry, sandy habitat but I have 

 found it in hard, white clay soil in the Lower Wabash Bottoms and on 

 rocky bars in streams. Outside the prairie area it is very erratic in its 

 locations. 



Maine, Que. to Sask. and Mont., southw. to Fla., Ariz., and Mex. 



3. Andropogon Elliottii Chapm. (Andropogon Elliottii var. projectus 

 Fern. & Grisc.) Elliott Beardgrass. Map 333. As now known, this 

 species is restricted practically to the unglaciated area where it is usually 

 found with Andropogon virginicus. It is most often found in dry, im- 

 poverished soil on washed slopes and in abandoned fields. A variety pro- 

 jectus has been named by Fernald & Griscom (Rhodora 37: 139. 1935). 

 The Indiana record is based upon my collection no. 26865. This variety is 

 described as having the racemes on long-exserted peduncles. This is merely 

 the early phase of the inflorescence, and late in the season the long- 

 exserted racemes usually fall and the broad sheaths open, exposing the 

 subsessile pairs of racemes in their axils. 



Coastal Plain from N. J. to Fla. and Tex., northw. to s. Mo., Ind., and 

 Tenn. 



