Panicum GR AMINE AE Panicum 



P. columbianum Scribn. 



Rare; dry rocks and sandy woods: Choptank Mills (K), W. 

 Stone, 29 May 1904 (A); near Lewes (S), A. Chase, 12 June 1906 

 (A); Point Lookout, 3^ mi. n. of Granogue (NC), Canhy, 30 May 

 1896 (D). June, July. 



Var. oricola (Hitchc. & Chase) Fern. (P. oricola of Gray's 

 Man., ed. 7. See Rhodora 36, 79. 1934.) 



Frequent, on coastal sand dunes and beaches. June to Aug. 



Sphae^ocarpa 

 P. sphaerocarpon Ell. 



Common on dry or moist soil, serpentine and dune hollows. 

 June to Aug. 



P. polyanthes Schult. 



Common in damp woods. Piedmont and Coastal Plain. Late 

 June, July. 



Oligosanthia 

 P. Scribnerianum Nash. 



Infrequent, on sand, gravel and serpentine soil, chiefly in the 

 Piedmont. Mid-June to mid-July. 



P. oligosanthes Schult. 



Infrequent, in sandy woods, Coastal Plain. May to July. 



P. Ravenelii Scribn. & Merrill. 



Rare: "Woods, New Castle County," Canhy, without date, as 

 P. clandestinum; this specimen in Chicago Museum of Natural 

 History, det. A. Steyermark. 



Scoparia 

 P. scoparium Lam. 



Common throughout, in wet ground, swamps and ditches. 

 June to Aug. 



P. scabriusculum Ell. 



Rare, in wet ground of the Coastal Plain: Millsboro (S), Com- 

 mons in 1884 (A); Salisbury (Wi), J. J. Carter, 14 July 1904 (A); 

 wet thicket, Millsboro, Long & Bartram, 4 July 1913 (A). 



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