The C4RA8SES of Tknnksskk. 88 



to three lines long, decurrent; leaf-blade lanceolate, four to ten 

 (in luxurious specimens even eighteen) inches long, three to six 

 or nine lines wide, very acute, somewhat narrowed toward the 

 rounded base, minutely serrulate scabrous and usually ciliate 

 with rather distant hairs along the very narrowly cartilaginous 

 and often finely wavy margins. Racemes three to seven, terminal 

 and alternate near the summit of the stem, horizontal or ascend- 

 ing, one to four to live inclies long, rather stout, the upper shorter, 

 bearded in the axils; rachis Hat on the back, a line wide, the min- 

 utely scabrous margins straight or only slightly undulate. vSpike- 

 lets densely crowded in Tour rows, obovate, obtuse, about one and 

 one-fourth lines long, three fourths to one line wide, outer glumes 

 five-nerved, smooth with prominent nerves. Floral glume with a 

 distinct depression on the back near the base. 



Note. — This differs from Paspalum pubiflorum, as represented by 

 No. 804 E. Hall (Texan Coll. 1S72), No. 567 Lindheimer (1S46) 

 and No. 45 E. Palmer (1SS7), in its spikelets, which are a little 

 shorter, more obovate and have smooth outer glumes. It is evi- 

 dently of the same species. 



Found b}' the writer along the grassy banks of a small stream 

 at Belle Meade, near Nashville, July 1892, and Dr. Gattinger col- 

 lected it in the same region in July, 1886. Mr. S. M. Bain collected 

 it in Lake county, near the Mississippi, June 1893. 



7. Paspalum Boscianum Flugge. {P. purpurascens Ell.) 



Plate V. F'igure 17. 



A rather stout perennial with ascending branching culms, two 

 to three feet high, long, flat leaves and numerous racemes crowded 

 near the summit of the culm or its branches. Nodes smooth. 

 Sheaths lax, smooth, longer than the internodes, the lower pur- 

 plish; ligule about a line long, its insertion strongly arched; leaf- 

 blade six to eighteen inches long, three to six lines wide, scabrous 

 on the margins and gradually tapering to a narrow acute and 

 rough point, sparingly pilose above near the base. Racemes three 

 to twelve, approximate, ascending, one to three inches long, of 

 nearly equal length on each culm or the upper shorter, pilose in 

 the axils, the racemes of the branches often (in herbarium speci- 

 mens) included in the wide sheaths; rachis flat on the back, its 

 scabrous margins nearly straight. Spikelets crowded, four-seriate, 

 obovate obtuse, one line long, outer glumes glaucous or brownish, 

 five-nerved, smooth; flowering glume very dark brown, shining 

 and minutely punctate-dotted, as is also the palea. 



This is without doubt Flugge's Paspalus Boscianus, which was 

 based upon specimens sent him from Carolina. It is more gener- 

 ally known as P. purpurascens Ell., but Flugge's name antedates 

 that given by Elliott and ought to be taken up. Paspalum confer- 

 tum LeConte is the same. 



Hiwassee Valley (Prof. A. Ruth), September, 1892. Allegheny 

 Springs (Lieut. E. E. Gayle), August, 1890. 



