Roitbeellia, TRIANDRIA DIGYNIA, 355 
_ A native of mountains, :, WEEN e 
‘Root consisting of strong woody fibres. Culms erect, ra- 
mous, a little compressed, inwardly of a spongy nature, from 
six to ten feet high, and as thick as the little finger near the 
base, where they are armed with strong and short, white hairs. 
Leaves large and numerous, smooth on the outside, and 
hairy on the inside; margins hispid ; sheaths very hairy ; hairs 
elevated on glandular points, -very stiff and sharp. Spikes 
terminal, and from the exterior axills, generally solitary, cy- 
lindric, &c. Flowers of three sorts, hermaphrodite, male, and 
neuter, the first and second occupy alternate pits or one side 
of the spike, while the neuter stand-on each side of them, so 
that the spike may be called secund. Calyx of the herma- 
phrodite and male floret two-valved, © Corol as in the last. , 
Stamens &c, as in the genus. Calyx of the neuter flower two- 
valved, valvelets oblong. Corol, glumes two, membrana- 
ceous, | 
ALR. corymbosa. Linn, 7: pl. ed, re i, 443, Coron 
pl.ii, N. 181, 
- Polygamous, erect, ‘smooth, ue fhvea"t to five feet high, 
Spikes fascicled, terminal and axillary ; rachis jointed ; flow- 
ers alternate, on opposite sides of the spike. Calyces gener- 
ally two-flowered. _ Priaih a coiees 
Teling. Pedda inndbkob: 
-R. punctata. Retz. Obs. iii, 12. 
Aegilops eraltata, Retz. Obs. ii. 27. 
‘A native of low rich pasture ground, grows in erect tufts, 
Ba vies Coals straight, mostly paket, the sheaths of he 
ind and smooth, from three to Rete nd ethos | 
of the last species, very firn eaves 
from six to twelve inches long ; margins 
with a few hairs; sheaths short and smooth. =r fei 
and from the exterior axills several, peduncled, Peduncles’ 
3 a, curved, jointed near the base and there bracted, be- 
Ww2 
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