172 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Georgia: Augusta, Kearney 206; Albany, Tracy 3635 in part ; Lookout Mountain, 

 Ruth 56; Stone Mountain, Hitchcock 1362; Bullock County, Harper 828; 

 Thomson, Bartlett 1462. 



Florida: Jacksonville, Cwri'tss 3587 in part, 6803; Baldwin, Hitchcock 984; Tallar 

 hassee, Combs 374, 376; Apalachicola, Biltmore Herb. 4278; Chattahoochee, 

 Tracy 3636; Gainesville, Chase 4229, 4267; Milton, Chase 4297, 4301; Lake- 

 land, Hitchcock 835. 



Tennessee: Knoxville, Scribner in 1892 (Univ. Tenn. Herb.). 



Alabama: Etowah County, Eggert 10; Pisgah, Chase 4479; Auburn, Hitchcock 

 1332, 1340, Tracy 3746, 3750, 3758 in part; Tuskegee, Carver 86; Flomaton, 

 Hitchcock 1039; Mobile, Kearney 28 in part, Langlois 48. 



Mississippi: Jackson, Hitchcock 1298; vicinity of Biloxi, Hitchcock 1087, 1091, 

 1105, 1115, Kearney 306 in part, Tracy 1730, 1883, 1888, 4578, 4579, 4615, 4616 

 in part. 



Louisiana: Calhoun, Hitchcock 1261, 1264, 1269; Coushatta, Ball 121; Lake 

 Chailes, Hitchcock 1151, T?'ac?/ 3651, 3657; Calcasieu River, Langlois in 1884. 



Texas: Waller, Hitchcock 1193, 1209, 1221; Beaumont, Reverchon 4159; Houston, 

 . Bebb 1262, Hall 833;, Big Sandy, Reverchon 4193; without locality, Wright 



^ 95. Panicum fusiforme Hitchc. 



Panicum neuranthum ramosum Griseb. Cat. PI. Cub. 232. 1866, not P. ramosum L. 

 1767. "Cuba occ. (Wr[ight] 3454)." The type, in the Grisebach Herbarium, was col- 

 lected by Charles Wright in western Cuba in 1863, and is numbered "900 = 3454." 

 It is the autumnal form. This species was also distributed by Wright under nos. 3453 

 and 3461 in part." 



Panicum fusiforme Hitchc. Contr. Nat. Herb. 12 : 222. 1909. Based on P. neu- 

 ranthum ramosum Griseb., not P. ramosum L. 



description. 



Vernal form similar to that of P. angustifolium; culms 30 to 70 cm. high, the basal 

 and lower blades narrower and at least the lowermost softly pubescent beneath, the 

 longitudinal wrinkles obscure, the leaves more or less clustered toward the base of the 



culms, the panicles thus long-exserted; 

 spikelets 3.3 to 3.5 mm. long, 1.4 to 1.5 

 mm. wide, elliptic, long-attenuate at 

 base; first glume two-fifths the length of 

 the spikelet, usually obtuse, second 

 glume and sterile lemma exceeding the 

 fruit and soipewhat beaked beyond it at 

 maturity, the pubescence as in P. an- 

 gustifolium; fruit 2.5 mm. long, 1.4 to 

 1.5 mm. wide, broadly elliptic, obscurely 

 puberulent at the subacute apex. 



Autumnal culms erect or reclining, 

 under favorable conditions formingdense, 

 bushy clusters 30 to 60 cm. in height; 

 blades soon involute, 3 to 5 cm. long; 

 spikelets more turgid than those of the 

 primary panicles, 3.5 to 3.8 mm. long, more pointed; fruit more turgid. 



Panicum fusiforme can be distinguished from P. angustifolium in the vernal state by 

 the larger and more pointed spikelets and the soft pubescence on the lower surface of 



Fig. 164. — P. fusiforme. From type specimen of 

 P. neuranthum ramosum Griseb. 



« See Hitchcock, Contr. Nat. Herb. 12 : 222. 1909. 



