320 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Panicum pubifolium Nash, Bull. Torrey Club 26: 577. 1899. "P. latifolium var. 

 molle Vasey, Contr. U. S. Nat. Herb. 3 : 33. 1892. Not P. molle Sw. 1788," is cited 

 and a description follows. As no type is cited this is evidently primarily a change of 

 name, based on P. latifolium molle Vasey. 



Panicum boscii molle Hitchc. 

 & Chase in Robinson, Rhodora 

 10 : 64. 1908. Based on "P. lati- 

 folium var. molle Vasey." 



DESCRIPTION. 



Closely resembling P. boscii 

 and often scarcely to be distin- 

 guished from it; culms on the 

 average not so tall, downy-villous; 

 sheaths rather sparsely villous; 

 blades velvety on the under sur- 

 face, sparsely appressed - pubes- 

 cent on the upper; panicle axis 

 and branches puberulent and 

 somewhat pilose; spikelets rather more strongly pubescent than in the species. 



The Florida specimens, together with Biltmore Herbarium 5185b, Dewey 73 and Steele 

 in 1896, have spikelets mostly larger than 4.5 mm. long, and correspond with the varia- 

 tion of the species which includes P. latifolium australe Vasey. 



j/ig. 359.— P. boscii molle. From type specimen. 



DISTRIBUTION. 



Woods, Connecticut to Illinois and Arkansas, south to Florida and Louisiana. 

 Connecticut: Norwalk, Bissell 5551. 



New York: Long Island, Bichnell in 1903, 1904, and 1905. 

 New Jersey: Great Notch, Nash in 1893. 



Pennsylvania: German town, Stone in 1889; Easton, Porter in 1891, 1895, 

 1898; Westchester, Windle in 

 Haines Station, Heller 



and 



.—Distribution of P. boscii molle. 



1904: 



4779. 

 Ohio: Cincinnati, James. 

 Illinois: Union County, French 



in 1872. 

 Missouri: Monteer, Bush 754; 



Noel, Bush 5060. 

 Delaware: Newark, Hitchcock 



592. 

 District of Columbia: Ball 703, 



Hitchcock 435, Merrill 202, 203, FlG . 



Pieters in 1896, Pollard 412, 



Seaman in 1873, Steele in 1896, Vasey in 1873 and 1884, Ward in 1881 and 1882. 

 Virginia: Glencarlyn, Dewey 73, 92; Four-Mile Run, Hitchcock 434, 436; Bel- 

 field, Meynke in 1904; Portsmouth, Noyes 104. 

 North Carolina: Asheville, McCarthy in 1888; Biltmore, Biltmore Herb. 5185a, 



5185b; Chapel Hill, Chase 3054. 

 South Carolina: Newry, House 2211. 

 Georgia: Stone Mountain, Hitchcock 1344; Gwinnett County, Smallin 1893; Cobb 



County, Wilson 27; Athens, Harper 15; Warm Springs, Tracy 8868; Augusta, 



Cuthbert 392, 1162. 

 Florida: Lake City, Hitchcock 1010J, Rolfs 817; Chattahoochee, Curtiss 6047 



(Hitchcock Herb.); Madison, Combs 295; Gainesville, Chase 4208, Combs 738. 



