TRIANDRIA DIGYNIA. 
85 
98. BROMUS. Gen. pl. 120» 
1. B. panicula nutante, spiculis ovatis compressis, glumis 
nudis distinctis, aristis subulatis brevioribus flexucso- 
rectis. Willd. sp. pi. I. p. 428. 
Icon. Host. gram. 1. t. 12. 
In rye- and wheat-fields, frequent ; introduced from Eu- 
rope. 0.July. v.v. 
2. B. panicula erecta coarctata, pedunculis ramosis, spicu- 
lis ovatis, flosculis imbricatis depressis nervosis pubes- 
centibus. Smith fi. brit. 1. p. 12S. Willd. sp. pl. 1» 
p.429. 
Icon. Host gram. \.t. 19. Engl. lot. 10/8. 
In dry fields and pastures ; probably from Europe. . 
June. v. v. 
3. B. panicula nutante, spiculis lanceolatis teretibus, flos- 
culis aristatis pilosis, aristis erectis, foliis utrinque gla- 
bris, vaginis pilosis. IVilld. enum. 120. Willd. sp. 
pl. 1. p. 431. 
In old fields and on road-sides : Canada to New England. 
11 • May — Aug. v. v. 
4. B. panicula nutante, spiculis oblongis compressis Q — 8- 
floris, flosculis aristatis margine ci liato-v iliosis, foliis 
utrinque vaginisque subpilosis, culmo ad nodos barba- 
to,— -Willd. sp. pl. 1. p. 433. 
B. canadensis. Mich.fi. amer. 1. p. 65 ? 
In barren and sandy soil : Canada to Carolina. I/. July. 
v. v. 
99. KOELERIA. Pers. ench. 1. p. 97. 
I.K, spica laxiuscula, spiculis divergentibus 3-4-floris 
subaristatis rugulosis carina subciliatis. Pers. L c. 
Aira cristata. Sp. pl. 2. p. 24. 
Poa cristata. Willd. sp. pl. 1 . p 402. 
Icon. Moris . hist. 3. s. 8. t. 4 .f. 7. 
On the plains of Columbia river. M. Lewis. 2£ . July. 
v. s. in Herb. Lewis. 
100. AVENA. Gen.pl. 122. Oats. 
1. A. panicula attenuata, calycibus bifloris, seminibus vil- 
losis, aristis calyce duplo longioribus. Willd. sp. pl. 1 . 
p. 44 5. 
In fields and open woods : New England to Carolina, 
frequent. Q.June. v.v. 
secalinus. 
mollis , 
purgans , 
ciliatus . 
cristata . 
pensylvanica. 
