FESTUCE.E. 477 



F. Perennials, floral glume more than 2 mm. long. . . .(d) 

 (1. Panicle racemose or capitate, spikelets 15-30- 



flowered, floral glume 2.7-3.'-^ mm. long 11 



d. Panicle usually ovoid (e) 



e. Spikelets 2-12-flo\vered, flora glume 2.5-3 mm. 



long, ligule not bearded 12 



e. Spikelets 4-12-flo\vered, floral glume 2.5 mm. 



long, ligule bearded 13, 14 



e. Spikelets 10-18-flo\vered, floral glume 2.5-3 



mm. long, ligule bearded 15 



G. Annuals or perennials, floral glume 1.8-2 mm. long. . (f) 

 f. Panicle narrow, 10-15 cm. long, spikelets 10-40- 



flowered, floral glume 1.6 mm. long, annual. ... 16 



f. Panicle spreading, annual (i) 



i. Panicle 15-35 cm. long, spikelets 5-14-flowered, 



floral glume 1.5-1.7 mm. long 17 



i. Panicle 18-25 cm. long, pyramidal, spikelets 7-11- 



flowered, floral glume 2 mm. long 18 



i. Panicle 8-16 cm. long, spikelets 10-50-flowered, 



floral glume 2 mm. long 19 



i. Panicle 12-30 cm. long, spikelets 5-20-flowered, 



floral glume 1.5-1.8 mm. long 20 



f. Panicle si^reading, perennials (k) 



k. Panicle 20-30 cm. long, spikelets 6-12-flowered, 



floral glume 1.7-2 mm. long 21 



k. Panicle 30-60 cm. long, spikelets 6-20-ilowered 



floral glume 1.7-2.1 mm. long 22 



k. Panicle 20-30 cm. long, spikelets 5-12-flowered, 



floral glume 1.8-1.9 mm. long 23 



k. Panicle 20-30 cm. long, spikelets 4-7-flowered, 



floral glume 1.8-1.9 mm. long 24 



k. Panicle 25-35 cm. long, spikelets 4-8-flowered, 



floral glume 1.7 mm. long 25 



k. Panicle 30-40 cm. long, spikelets 3-4-flowered, 



floral glume 1.5 mm. long 26 



1, E. hypnoides (Lam.) B. S. P. Prel. Cat. N. Y. 69 (188S). 



