rand O xrok. 
w 9. Pe sendborstt-VYasuys -———» Culms erect from a densely tufted dase, 
50-50 ciie, mostly about 50 cme, tall; leaves in a basal cluster, the blades 
smooth or scaberulous, softs, mostly less than 1 mn. wide; ligules 2-3 mm. long; 
} panicles narrow, 5-15 cme, mostly less than 10 cm., long, the branches appressed 
OQ 
or ascending; glumes lanceolate-acuminate, the first 3-4 mm. long, the second 
4-5 mm. long; lemmas lanceolate, 4-5 im. long, scabrous above, densejy crisp- 
pubescent on the lower part of the back. 
é Meadows , plains, and rocky slopes. 
ate a 
Ramey ‘ 
a : 
m. ai 
& 2 Lich Ween? 
10. P. Canbyi (Scribn.) Piper. —* Culms densely tufted, erect or ascending 
at the base, rather stout, 50-90 cm., usually about 60 cm., tall; leaves not 
crowded at the base, the blades fim, flat, scabrous or nearly smooth on both 
surfaces, 1-3 mm. wide; ligules 3-5 cme long; panicles erect, dense, 10-15 cm. 
long; glumes lanceolate or acwninate, the first 3-4 mnie, the second 4-5 mm., long; 
lemmas lanceolate, 4-5 mm. long, the apex sometimes acute, crisp-pubescent on 
the lower part of the back. 
a 
af 
ll. Pe ampla Merr. ——— Culms erect from a tufted base, as much as 120 én. 
tall; sheaths smooth or somewhat scabrous; ligules short, less than 1 mm. long; 
blades firm, flat or folded, scabrous above, smooth or scabrous below, 10-30 
cme long, or longer on the innovations, 1-3 mn. wide; panicles narrow, rather 
dense, 20-50 cme long, the branches ascending or appressed; spikelets pale or 
glaucous, 5-10 ma. long; glumes scabrous, lanceolate-acuminate, the first 1-3 
nerved, 4-5 mm. long, the second 3-5 nerved, 5-6 mm. long; lemmas lanceolate, 
acute or obtuse, 5-6 mm. long, glabrous, or usually scabrous. 
aah st? bai ied bie Vaal kan nip y 
; 
5 
| 
lieadows, river banks,and roadsides. 
12. P. epilis Scribn. ——SCulms erect from a densely tufted base, 20-40 cm. 
tall; sheaths smooth; ligules about 2 ma. long; blades smooth, soft, flat or 
loosely folded, very narrow or as much as 2 mm. wide; panicles long-exserted, 
ovoid or rather narrow, dense, 2-5 cm. long; glumes ovate-lanceolate, the first 
3 mm., the second 4 mn. long; lemmas lanceolate, 4-5 mm. long, scabrous. 
‘© mara ay elannaec 
uw urassy mountain slopes,— — 
moh ——pDivide between St. Joe and Clearwater 
Wi gape. Mia tok pecs 
rercee Navbiona. 
