TRIANDRIA DIGYNIA. 
H2 
17 Loliacea, 
18 Poaformis, 
19 fiavescens, 
20 pannonica, 
21 poly sty tha, 
22 Valesiaca, 
23 laevis, 
24 vaginata, 
25 tenuifolia, 
26 stricta, 
27 capitata, 
28 Unioloides, 
29 Calycina, 
30 aipina, 
31 violacea, 
Bromus. 
1 purgans, 
2 inermis, 
3 rectus, 
4 asper, 
5 ciliatus, 
6 commutatus, 
7 littoreus, 
8 Sterilis, 
9 giganteus, 
10 rigidus, 
11 eristatus, 
12 pendulinus, 
13 rupestris, 
14 glaucus, 
15 laxus, 
16 Poaformis, 
17 volgensis, 
18 pinnatus, 
long-spiked 
meadow-grass-leaved 
yellowish 
Hungarian 
many-spiked 
Valesian 
smooth 
sheathed 
slender 
upright 
headed 
large-spiked 
awned 
Alpine 
violet-coloured 
Brome-grass* 
Canadian 
smooth 
upright 
rough 
ciliated 
downy-rye 
sea 
barren 
tall 
stiff 
crested 
pendulous 
rock 
glaucous 
Loose-spiked 
M eado w-grass-like 
Wolga 
spiked-heath 
