162 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
88. Panicum ciliatum Ell. 
Panicum ciliatum Ell. Bot. 8. C. & Ga. 1: 126. 1816. No locality is cited. The 
type, in the Elliott Herbarium, consists of two short culms with short-exserted, imma- 
ture panicles. 
Panicum leucoblepharis Trin, Clav. Agrost. 234. 1822. Trinius’s full citation is as 
follows: ‘1177. Gr. miliaceum americanum, majus, panicula minore. Pluk. 
Phytogr. p. 176. Tab. 92. f. 7. Mant. p. 95. (excl. Syn. Sloan. ut ipse Sloaneus 
monet). Citatur a Gronowio ( Virg. p. 12.) ad Pan. paniculatum floribus muticis; sed 
quid illud? Figura bene convenit cum Panico quodam herb. notsr. [nostr.] ex Amer. bor. 
(Pan. leucoblepharis m.) praeter cilia foliorum elegantissima, rigidiuscula.—Synon. 
Recchit ap. Pluk. admodum dubium.”’ Plukenet cites ‘‘Nov. Hispan. Terent. apud 
Recc, 373” after the phrase name cited by Trinius. The figure, which is not identifi- 
able, represents blades with cordate bases and no ciliw. A specimen in the Trinius 
Herbarium is labeled: ‘‘ab Enslino in Am. bor. |. dt. cl. Trattinick.’’ This is typ- 
ical P.ciliatum Ell. Trinius¢ further describes this species, citing the Enslin speci- 
men. Since the Plukenet figure can not certainly be identified, the Enslin specimen 
has been chosen as the type. 
Panicum ciliatifolium Kunth, Rév. Gram, 1: 36. 1829. Based on P. ciliatum Ell. 
without description or explanation as to reason for change of name. 
Panicum ciliatifolium Desv. Opuse. 88. 1831. ‘‘Habitat in America boreali.’”’ 
The type could not be found in the Desvaux Herbarium, but the description leaves 
no doubt as to the identity of the species. Desvaux cites P. ciliatum Ell. witha query. 
He uses the name ciliatifolium apparently without reference to its previous use by 
Kunth for the same species. 
DESCRIPTION. 
Vernal form with culms 5 to 30 cm. high, erect or spreading, sparsely pilose toward 
the summit, the nodes glabrous; sheaths ciliate on the margin, otherwise glabrous, 
usually overlapping; blades 3 to 6 cm. long, 3 to 8 mm. wide, the uppermost often 
much smaller, lanceolate, ciliate on the margin with stiff hairs 2 to 3 mm. long, arising 
from papille, panicles 3 to 4 cm. long, about as wide, with more numerous spikelets 
than those of P. xalapense, the branches spreading, flexuous, the axis pilose; spikelets 
1.8 to2 mm. long, 1 mm. wide, obovate-elliptic; first 
glume half the length of the spikelet, subacute; second 
glume and sterile lemma equal, not exceeding the 
fruit, villous; fruit 1.7 to 1.8 mm. long, 0.9 mm. wide, 
elliptic, the apex minutely umbonate. 
Autumnal form in flat, soft mats, similar to that of 
P. xalapense. 
A specimen of Nash 807 from Eustis, Fla., in Hitch- 
cock’s herbarium, which is an autumnal form of this 
species, consists of two small tufts, of which one has 
glabrous spikelets, the other pubescent spikelets; the plants are otherwise identical; 
the spikelets are of the same size and the fruits of the glabrous ones are umbonate 
as in the pubescent ones. So far as examined, other specimens of this number have 
pubescent spikelets. Two specimens, Chase 3131 from Wilmington, N. C.,and Hitch- 
cock 1062 from Biloxi, Miss., with pubescent spikelets only 1.6 mm. long are inter- 
mediate between P. ciliatum and P. polycaulon and might perhaps be considered as 
a form of P. polycaulon with pubescent spikelets. 
Fic. 150.—P. ciliatum. From 
type specimen. 
aGram. Pan. 219. 1826. 
