42 



i-nerved; second and third scales membranous, equal in lengthy 

 7-nerved, strongly pubescent with short spreading hairs; fourth 

 scale chartaceous, elliptic, yellowish-white, enclosing a palet of 

 equal length and similar texture. 



Type collected by the writer in the low pine land at Eustis^ 

 Lake County, Florida, in the latter part of July, 1894, no. 1338. 

 Nos. 334 and 467, of the same collection, also belong here. 



Panicum Manatense n. sp. 



Whole plant, with the few exceptions described below, smooth 

 and glabrous. Culms 2-4 dm. long, strongly striate-grooved, de- 

 cumbent, much branched, the lower and longer internodes arcuate ;. 

 nodes often yellowish on one side ; sheaths loose, ciliate along the 

 margins, at least when young, the lower ones much shorter than 

 the internodes, those at and toward the extremities of the branches 

 crowded and overlapping; ligule truncate, very short; leaves erect 

 or nearly so; lanceolate 3.5-9 cm. long, 7-15 mm. wide, acumi- 

 nate at the apex, rounded at the sparsely ciliate base, 9-1 3-nerved ; 

 panicle ovate in outline, 4-6 cm. long, its branches single and 

 divided almost to the base, 1.5-3 cm. long, ascending; spikelets 

 on ascending pedicels usually longer than themselves, elliptic 

 about 3.5 mm. long, 1.3 mm. wide, very acute ; first scale mem- 

 branous, slightly exceeding one-third the length of the spikelet, 

 ovate, acute, 1-3-nerved ; second and third scales 7-9-nerved,. 

 membranous, acute, strongly pubescent with spreading hairs, the 

 latter with a hyaline palet about one-third its length ; fourth scale 

 chartaceous, elliptic 2.5 mm. long, strongly apiculate, enclosing a 

 palet of similar texture as long as itself. 



Collected by the writer on August 21, 1895, near a sulphur 

 well in a wet. hammock northeast of Palmetto, Manatee County, 

 Florida, no. 2428a. Approaching P. comnmtatiim Schult. in 

 habit and general appearance, but the large and very acute spike- 

 lets readily distinguish it from that species. 



Agrostis Idahoensis n. sp. 



Culms caespitose, slender, 2-4 dm. tall, erect, bearing usually 

 two distant leaves below the middle ; sheaths loosely embracing 

 the culm, the lower ones short, the uppermost one elongated 4.5- 

 9 cm. long; ligule membranous 3-4 mm. long, obtuse, cut-toothed 

 at the apex, minutely pubescent on the outside ; leaves narrowly 

 linear, erect, 4-9 cm. long, 1-2 mm. wide, acuminate at the apex, 

 rough, particularly on the margins ; panicle oblong, 6-12 cm. long,. 

 2.5-4.5 cm. wide, the axis smooth below, slightly scabrous above 

 as are the branches and pedicels; branches of the panicle ascend- 

 ing 5.5 cm. long or less, usually in 5's, the secondary branches- 



