MANUAL OF THE GRASSES OF THE UNITED STATES 



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30. Paspalum urvillei Steud. Vasey grass. (Fig. 1246.) Culms 

 in large clumps, erect, mostly 1 to 2 m tall; lower sheaths coarsely 

 hirsute; blades mostly elongate, 3 to 15 mm wide, pilose at base; 

 panicle erect, 10 to 40 cm long, of about 12 to 20 rather crowded, 

 ascending racemes, 7 to 14 cm long ; spikelets 2.2 to 2.7 mm long, 

 ovate, pointed, fringed with long white silky hairs, the _ glume 

 appressed-silky. % (P. larranagai Arech. ; P. vaseyanum, Scribn.)- 

 Along ditches and roadsides, and in waste 

 ground, mostly in rather moist soil; North 

 Carolina to Florida and west to Texas; south- 

 ern California, south to Argentina (fig.1247). 

 10. Laevia. — Rather tall, simple or occasionally 



with reduced flowering branches; blades 

 mostly flat; racemes few to several; 

 spikelets broadly oval to orbicular, de- 

 pressed planoconvex, glabrous. 



31. Paspalum laeve Michx. (Fig. 1248.) Culms erect or ascending 

 leafy at base, 40 to 100 cm tall; sheaths keeled, glaborus or nearly so; 

 blades usually folded at base, flat or folded above, 5 to 30 cm long, 3 to 10 

 mm wide, glabrous to cil- 

 iate or sparsely pilose on 

 the upper surface or some- 

 times toward the base 

 beneath; racemes usually 

 3 or 4, spreading, 3 to 10 

 cm long ; spikelets broadly 

 oval, 2.5 to 3 mm long. 



Figure 1249. — Distribution of 

 Paspalum laeve. 



Figure 1250.— Paspalum longipilum. Panicle, X 1; two views of 

 spikelet, and floret, X 10. (Type coll.) 



Figure 1251.— Distribution of 

 Paspalum longipilum. 



91 (P. angustifolium 

 LeConte; P. australe 

 Nash.) — Meadows, open 

 woods, old fields, and waste 

 ground, New Jersey and 

 Pennsylvania to Florida, 

 Arkansas, and eastern 

 Texas (fig. 1249). 



32. Paspalum longi- 

 pilum Nash. (Fig. 1250.) Similar to P. laeve, usually less leafy at base, 

 sheaths and blades pilose ; racemes somewhat more lax than in P. laeve. 

 Ql (P. plenipilum Nash.) — Damp mostly sandy soil, savannas, open 

 woods, and wet pine barrens, New York to Tennessee, Florida, and 

 Texas (fig. 1251). 



33. Paspalum circulare Nash. (Fig. 1252.) Culms in dense leafy 

 clumps, 30 to 80 cm tall; sheaths pilose to nearly glabrous; blades 

 mostly erect, commonly about equaling the inflorescence, 15 to 30 

 cm long, 5 to 10 mm wide, usually pilose on the upper surf ace ; racemes 

 2 to 7, mostly suberect, 5 to 12 cm long; spikelets nearly orbicular, 



