124 PANIC ACE.E. 



several spikelets from five different plants taken from different locali- 

 ties. A large number of forms could be selected. Plants from 

 Colorado have been seen in which there were 2-7 flowers and some 

 empty glumes to the spikelet, all staminate. 



A tall grass, culms and leaves too tough to make the best of feed. 



Florida, Curtiss 3609 ; New Jersey, Scribner for U. S. Dept. 

 Agricul. 104; Colorado, Cassidy; Mexico, Palmer 510; Florida, 

 Simpson for Nat. Mus. 580; Arizona, Tourney 1^1 \ Illinois, Beat 

 for M. A. C. 14; Michigan, HicJcs for M. A. C. 15. 



Connecticut, Northern Indiana, Kansas, Missouri. 



Mexico to Florida, and west to the Rocky Mountains. 



33. P. capillarioides Vasey, Contrib. U. S. Herb. 1: 54 (1890). 

 A rather slender perennial, 30-60 cm. high, with much the 



aspect of P. capillare. Sheaths pubescent, about the length of the- 

 internodes; ligule a ciliate ring; blades flat, nearly smooth, 10-25- 

 cm. long, 5-10 mm. wide. Panicles at length barely exserted, 

 mostly terminal, pyramidal, 8-15-30 cm. long, 12-20-40 cm. 

 broad, rays often in pairs, mostly single, rather stiff with pubescent 

 glands in the axils, branches diverging, straight or slightly flexuose, 

 flower-bearing mainly above the middle. Spikelets single, or 3 

 near tlie ends of tlie branches, green or purple, linear-lanceolate, 

 5-6 mm. long, first glume ovate, 2.5 mm. long, 5-nerved, second 

 and third linear, scarcely acute, 11-13-nerved, fourth or palea of 

 the sterile spikelet ovate, 2 mm. long; floret mottled with brown, 

 oval, 1.8 mm. long. 



Texas, Buckley^ Neally 30, Miss Croft. 



34. P. amarum Ell. Bot. S. C. and Ga. 1: 121 (1817). 



A robust glabrous creeping perennial, 30-90 cm. high. Leaf- 

 blades 20-40 cm. long. 7-12 mm. wide, glaucous, firm, often invo- 

 lute, with long, slender points, some of them reaching above the 

 panicle. Panicle 10-30 cm. long, racemose, simple, smooth with 

 the appressed rays sometimes included. Spikelets ovate-lanceolate,, 

 about 5 mm. long, first glume ovate, acute, 4 mm. long, 9-nerved,. 

 second longer, 7-nerved: floral glume of the sterile floret like the- 

 latter, only 5-nerved, its palea as long; fertile floret oval, 3.5 mm. 

 long. 



