HITCHCOCK AND CHASE NOKTH AMERICAN PANICUM. 203 



Florida: Baldwin, Hitchcock 1005$; Apalachicola, Biltmore Herb. 6028 in part, 



Chapman. 

 Alabama: Gateswood, Tracy 8433; without locality, Buckley (Mo. Bot. Gard. 



Herb.). * 

 Mississippi: Ocean Springs, Tracy 91, 4585; Beauvoir, Tracy 4594. 

 Texas: Waller County, Hitchcock 1175, Thurow 6. 



117. Panicum lindheimeri Nash. 



Panicum lindheimeri Nash, Bull. Torrey Club 24 : 196. 1897. "The type was col- 

 lected by F. Lindheimer in 1846, no. 565." The type, in Nash's herbarium, consists 

 of two rather slender vernal culms geniculate at the lower nodes, sparsely papillose- 

 pilose below, beginning to branch at some of the nodes. No locality other than 

 Texas is given on the label of the type nor on that of Lindheimer 565 in the National 

 Herbarium, but on that of another specimen of this collection in the herbarium of 

 the Missouri Botanical Garden the following data are given: "Springs, banks of the 

 Guadeloupe, near New Braunfels." 



Panicum funsioni Scribn. & Merr. U. S. Dept. Agr. Div. Agrost. Circ. 35: 4. 1901. 

 "Type specimen collected on the bank of Kaweah River at Three Rivers, Tulare 

 County, Cal., no. 1286, Coville & Funston, July 26, 1891." The type, in the National 

 Herbarium, consists of two branching culms, one sending out a rootlet at the second 

 node (indicating that the culm was prostrate) ; sheaths and lower internodes rather 

 strongly papillose-pubescent. 



This is the species described under P. nitidum Lam. in Britton's Manual. 



DESCRIPTION. 



Vernal culms stiffly ascending or spreading, 30 to 100 cm. high, glabrous, or lower 

 internodes ascending-pubescent, the nodes swollen; sheaths less than half as long as 

 the elongated internodes, ciliate on the margin, otherwise glabrous, or the lower 

 ascending-pubescent; ligules 4 to 5 mm. long; blades usually firm, 5 to 10 cm. long, 

 6 to 8 mm. wide, at first ascending, soon spreading, papillose-ciliate at the rounded 

 base, glabrous on both surfaces, or minutely puberulent beneath; panicles 4 to 7 

 cm. long (rarely longer), nearly as wide, branches ascending or spreading, loosely 

 flowered; spikelets 1.4 to 1.6 mm. long, 0.8 to 0.9 mm. wide, obovate, obtuse, turgid, 

 pubescent; first glume one-fourth as long as the spikelet 

 or less, usually obtuse; second glume and sterile lemma 

 scarcely equaling the fruit at maturity; fruit 1.3 to 1.4 

 mm. long, 0.8 mm. wide, elliptic, obtuse. 



Autumnal form usually stiffly spreading or radiate-pros- 



trate, internodes elongated, with tufts of short, appressed 



branches at the nodes; blades reduced, involute-pointed 



t c , ■ t .-,. , , , Fig. 207. —P. lindheimeri. 



and often conspicuouslv ciliate at base. „ 



, . .. . From type specimen. 



This common and widely distributed species is variable 



as to pubescence. Usually the plants are glabrous except the lower internodes and 



sheaths, but sometimes the pubescence extends nearly to the summit. These more 



pubescent specimens, such as the type of P. funstoni from California, Macoun 26338 



from Ontario, Chase 3464 from Maryland, and Tracy 7947 from Texas, in the vernal 



form resemble less pubescent specimens of P. tennesseense but can be distinguished 



by the smaller spikelets. In the autumnal form the stiffly radiating culms with the 



tufts of short branches also distinguish this species. 



a Man. 85. 1901. 



