MANUAL OF THE GRASSES OF THE UNITED STATES 



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Figure 896. — Paspalum longipilurn. Pan- 

 icle, X 1 : two views of spikelet, and 

 floret, X 10. (Type coll.) 



suberect, 5 to 12 cm. long; spikelets 

 nearly orbicular, about 3 mm. long. 

 % (P. praelongum Nash.) — Fields, 

 meadows, and open waste ground, 

 Massachusetts to Georgia and 

 Mississippi, west to Kansas and 

 Texas. 



37. Paspalum praecox Walt. (Fig. 

 898.) Culms erect from short scaly 

 rhizomes, 50 to 100 cm. tall; sheaths 

 keeled, glabrous, or the lower villous; 

 blades 15 to 25 cm. long, 3 to 7 mm. 

 wide, glabrous or nearly so; racemes 

 usually 4 to 6, ascending to arcuate- 

 spreading, 2 to 7 cm. long, the 

 common axis very slender; rachis 

 about 1.5 mm. wide, purplish; spike- 

 lets usually solitary and paired in 

 each raceme, strongly flattened, sub- 

 orbicular, 2.2 to 2.8 mm. long, the 

 glume and sterile lemma thin and 

 fragile. % — Wet pine barrens, 

 borders of cypress swamps, moist 

 places in flatwoods, and wet savannas, 

 in the Coastal Plain, North Carolina 

 to central Florida and along the Gulf 

 to Texas. 



38. Paspalum lentiferum Lam. 

 (Fig. 899.) Similar to P. praecox; 



culms more robust, sometimes as 

 much as 150 cm. tall; sheaths less 

 strongly keeled; blades usually more 

 or less pilose; racemes usually 4 or 

 5; spikelets 2.7 to 3.4 mm. long, 

 broadly oval. % (P. glaberrimum 

 Nash; P. tardum Nash; P. kearneyi 

 Nash; P. amplum Nash.)— Moist 

 pine barrens, borders of flatwoods, 

 and cypress swamps, and in savannas 

 on the Coastal Plain, from Virginia 

 to southern Florida and along the 

 Gulf to Texas. 



12. Floridana. — Mostly robust, culms 

 simple; blades mostly flat; ra- 

 cemes few ; spikelets large, rather 

 turgid, glabrous. 

 39. Paspalum difforme LeConte. 

 (Fig. 900.) Culms solitary or few 

 from a short knotty rhizome, rather 

 stout, 35 to 75 cm. tall; leaves com- 

 monly crowded at the base; blades 10 

 to 15 cm. long, 5 to 10 mm. wide, 

 usually pilose on the upper surface 

 toward base; racemes 2 to 4, ascend- 

 ing to suberect, 3.5 to 8 cm. long; 

 spikelets 3.5 to 4 mm. long, oval to 

 obovate. % — Moist sandy soil in 



