HITCHCOCK AND CHASE—NORTH AMERICAN PANICUM. 169 
The specimen referred to by Grisebach,¢ under P. neuranthum as, “‘forma ascendens, 
ramosa, foliis planis, spiculis ut in a” is P. chrysopsidifolium. 
This species can be distinguished from P. consanguineum by the smaller spikelets, 
and from P. aciculare by the bearded 
nodes and by the lax culms and flat 
blades of the autumnal form. 
DISTRIBUTION. 
"Sandy pine woods of the Coastal 
Plain, Florida to Louisiana; also in 
Cuba and Porto Rico. 
Fioria: Leon County, Curtiss D; 
Orange County, Baker 45; San- 
ford, Hitchcock 775. 
Lourstana: Lake Charles, Chase Fig. 159.—Distribution of P. chrysopsidifolium. 
4405. 
Cupa: Consolacion del Sur, Palmer & Riley 481; Herradura, Hitchcock 116; 
eastern Cuba, Wright 3453 in part; Isle of Pines, Palmer & Riley 982. 
Porto Rico: Santurce, Heller 982; Las Marias ad Tabomeo, Sintenis 5985. 
‘© 98. Panicum consanguineum Kunth. 
Panicum villosum Ell. Bot. S. C. & Ga. 1: 124. 1816, not Lam. 1791. No locality 
_is cited. The type, in the Elliott Herbarium, consists of a single culm lacking the 
base, bearing four leaves and an immature, scarcely exserted panicle. The accom- 
panying label reads: ‘‘ Panicum villosum mihi. Hab. in umbrosis. Flor. Ap. Ma.”’ 
Panicum consanguineum Kunth, Rév. Gram. 1: 36. 1829. Based on P. villosum 
Ell., the name presumably changed because of P. villosum Lam. 
Panicum commutatum consanguineum Beal, Grasses N. Amer. 2: 141. 1896. Based 
on P. consanguineum Kunth. 
Panicum georgianum Ashe, Journ. Elisha Mitchell Soc. 15: 36. 1898. “‘Georgia: 
Small; Darden [Darien] Junction, McIntosh Co., June 27, 1895.” The type speci- 
men, which is in the Biltmore Herbarium and which is marked “‘P. georgianum 
W. W. Ashe,’’ in Ashe’s writing, is the autumnal form. 
Panicum cahoonianum Ashe, Journ. 
Elisha Mitchell Soc. 15:6 113.1899. Based 
on P. georgianum Ashe, the name changed 
because of Panicum georgicum Spreng. 
1825. 
DESCRIPTION. 
Vernal form with culms ascending or 
spreading, often geniculate at base, 20 to 
55 cm. high, rather stout, densely felty- 
villous below, less so above, nodes 
Fie. 160.—P.consanguineum. From type specimen Denudlen, Gentine) vallllots, jie wielpen @ ire 
of P. villosum Ell. sparsely so; blades erect or ascending, 7 
to 11 cm. long, 5 to 8 mm. wide, (the 
lowermost shorter and broader), tapering slightly toward the base, more or less invo- 
lute-pointed, villous on both surfaces or nearly glabrous above, the longitudinal 
@ Cat. Pl. Cub. 232. 1866. 
6 The title page, vol. 15, pt. 2. (pp. 76-114) is incorrectly numbered 14. (XIV). 
