35 2 GRASS FAMILY 



b. Lemma awn-pointed or merely acute 



(1) Stems 3-10 ft. tall; spikes 4-15 in. long, 



thick E. condensdtus 



(2) Stems 2-4 ft. high; spikes 2-4 in. long 



(a) Spike densely hairy; spikelets 2 at each 



joint E. innovdtus 



(b) Spike not hairy ; spikelets usually 1 at 



some or all of the joints E. triticoides 



ERAGROSTIS Beauvois 1812 ERAGROSTIS 

 (Gr. er, spring, agrostis, grass) 



PL 45, fig. 26. - 



Spikelets 2-35-flowered, flattened, in panicles ; glumes more or less 

 equal, keeled, 1 or 3-nerved; lemma longer than glumes, keeled, 3-nerved, 

 palet shorter, 2-nerved or 2-keeled, usually persisting after the lemma falls ; 

 annual or perennial. 



1. Spikelets 8-35-flowered, 5-16 mm. long, 3-4 mm. 



wide ; lemma 3-4 mm. long E. major 



2. Spikelets 5-15-flowered, 3-8 mm. long, 1-2 mm. 



wide ; lemma less than 2 mm. long 



a. Stems .5-1.5 in. high; panicles 3-8 in. long, us- 



ually greenish E. Purshii 



b. Stems 1-3 ft. high ; panicle 6-24 in. long, purple E. pectindcea 



ERIOCOMA Nuttall 1818 INDIAN MILLET 

 (Gr. erion, wool, konie, hair) 



PL 46, fig. 20. 



Spikelets 1-flowered, in panicles ; glumes broad, awn-tipped ; lemma firm, 

 oval to elliptic, densely silky-hairy and with a terminal awn ; perennial. 

 Stems 1-3 ft. high; panicle 6-12 in. long; spikelet 6-8 



mm. long E. cuspiddta 



FESTUCA Linne 1753 FESCUE 



(The ancient Latin name) 



PL 45, fig. 19. 



Spikelets 2-13-flowered, in racemes or panicles; glumes more or less 

 unequal, acute, keeled ; lemma narrow, rounded on the back, 5-nerved, usu- 

 ally awned at the tip, palet little shorter ; annual or perennial. 



1. Spikelets 6-13-flowered; stamens 2; annual F.octoilora 



2. Spikelets 2-10-flowered ; stamens 3 ; perennial 

 a. Leaves' inrolled, 1-2 mm. wide 



