40 



P. Blodgcttii ^XQ elliptic or elliptic-obovate, about one-half longer, 

 and the pubescence scantier and composed of much longer hairs, 

 which are appressed and not glandular-tipped ; the leaves, more- 

 over, are sparingly, if at all, ciliate. 



Paspalum villosissimum n. sp. 



Whole plant, except the culm and spikelets, densely vilous, 

 particularly the lower sheaths. Culms erect, smooth and glabrous, 

 5-IO dm. tall, from a thick and more or less branching rootstock, 

 extending, when mature, much beyond the uppermost sheath, 

 branching at the highest node, the usually single branch exserted 

 but little beyond the sheath ; nodes purple ; sheaths loosely em- 

 bracing the culm, those at the base short and overlapping, the 

 remainder elongated, the uppermost sometimes without a leaf 

 blade; ligule truncate, less than .5 mm. long; leaves erect, linear- 

 lanceolate to lanceolate, 3-20 cm. long, 3- 10 mm. wide, truncate 

 or slightly rounded at the base, long-acuminate toward the apex, 

 a ring of long hairs at the very base immediately above the ligule ; 

 spike single, rarely with an additional one below, slender, usually 

 strict, or the longer a little arcuate, 7-1 1 cm. long, the rachis flat, 

 about two-thirds as wide as the spikelets, wing-margined, some- 

 what flexuous, the margins serrulate; spikelets orbicular-obovate, 

 .8-.9 mm. long, .75 mm. wide, by pairs, in four rows, on hispidu- 

 lous pedicels about one-half their length ; first and second scales 

 membranous, strongly pubescent with short spreading glandular- 

 tipped hairs, the former concave and 3- nerved, the latter flat with 

 inrolled margins, 2-nerved; third scale similar in shape to the 

 first, greenish white, chartaceous or coriaceous, enclosing a palet 

 of equal length and similar texture. 



Type collected by the writer at Eustis, Lake County, Florida, 

 early in June, 1894, no. 946, and distributed as P. setaceiun, from 

 which it seems clearly distinct, the shorter and broader leaves and 

 the pubescent spikelets readily separating it from that species. It 

 resembles P. dasypJiylluiii Ell. in its pubescence, but its slender 

 long-exserted culms and the slender spikes, usually single, serve 

 well to distinguish it. In P. dasyphylluin the culm is much 

 stouter, and the thicker spikes 2-4 in number, rarely i. 



Nos. 2019, collected at the same place, and 2416a at Tampa, 

 both in 1895, belong here. 



Panicum albo-makginatum n. sp. 



Whole plant, with the exception of the spikelets and the lower- 

 most sheaths, smooth and glabrous. Culms erect, slender, 1.5-4.5 

 dm. tall, somewhat branched toward the base ; sheaths short, often 



