The Flora of the Cayuga Lake Basin 91 



2. S. viridis (L.) Beauv. Green Foxtail. Bottle Grass. 

 In situations similar to the preceding ; common. July-Sept. 

 Nearly throughout N. A. Naturalized from Eu. 



3. S. italica (L.) Beauv. German or Hungarian Millet. 



Fields and waste places ; an occasional escape from cultivation. July- Aug. 



Native of Eu. 



Two forms occur: one with green panicles (subsp. stramineofructa Hub.), and 

 the other with purple panicles (subsp. stramineofructa, var. Hostii, subvar. Metzgeri 

 (Korn.) Hub.) (See Amer. Journ. Bot. 4: 169. 1915.) 



44. Cenchrus L. 



1. C. pauciflorus Benth. (See Contr. U. S. Nat. Herb. 22 l :67. 1920. C. caro- 

 linianus of Gray's Man., ed. 7, in part.) Sandbur. 



Dry sandy open soil ; rare. July-Aug. 



Roadside e. of Pout Pond (A. J. E., K. M. IV., & L. F. Randolph, 1919), still per- 

 sisting in 1922. Locally introduced. 



Mass. to Oreg., southw. to Fla. and Calif. Found also in W. I., Mex., and S. A. 



Tribe 10. Andropogoneae 



45. Andropogon (Roy en) L. 



a. Raceme solitary ; joints of the rhachis clavate. 1. A. scopariits 



a. Racemes in fascicles; joints of the rhachis not clavate. 2. A. f meatus 



1. A. scoparius Michx. Beard Grass. 



Dry fields, roadsides, and thickets, in sandy noncalcareous soils ; frequent or 

 locally abundant. Aug.-Sept. 



On the hills s. of Ithaca, on the sandy knolls about the ravine crests, along Cayuga 

 Lake in similar places, and in the sandy regions n. of the lake; absent in the 

 McLean region and on the clays and richer soils of the basin. 



N. B. to Sask., southw. to Fla., Tex., and N. Mex. ; common on the Coastal Plain. 



2. A. furcatus Muhl. (A. proz-incialis of Cayuga Fl.) Beard Grass. 



Dry banks, in slightly heavier gravelly noncalcareous soils ; frequent. Aug.-Sept. 



Six Mile Creek (D.) ; Cascadilla Creek (D.) ; Fall Creek, below Ithaca Falls 

 (£).!); "especially abund. along the lake-shore" (D.) ; Big Gully; n. of Union 

 Springs ; Junius. 



Me. to Sask., southw. to Fla., Tex., and N. Mex. ; scarce on the Coastal Plain. 



46. Sorghastrum Nash 

 1. S. nutans (L.) Nash. (Chrysopogon nutans of Cayuga Fl.) 



Dry fields, roadsides, and banks, in sandy or gravelly soils ; infrequent. Aug.-Sept. 



Hillside n. of Buttermilk Glen; Six Mile Creek (D.) ; Fall Creek, near Trip- 

 hammer Falls (D.) ; "lake shore and elsewhere" (D.) ; Big Gully; Utt Point; n. of 

 Union Springs ; Cayuga. 



Me. to Man., southw. to Fla. and Mex., including the Atlantic Coastal Plain. 



In the Cayuga Lake Basin the plant grows in sandy, rather neutral, soils, but it is 

 found in pure marl in Bergen Swamp, Genesee Co., N. Y. 



