stribution._--Common in Deccan peninsula.
=Rottboellia exaltata, _L.f._=
This grass is usually annual and rarely perennial. Stems are stout,
erect, hispid, branching from the base, varying in height from 3 to 10
feet.
The _leaf-sheaths_ are loose, hispid with tubercle-based hairs, or
glabrous, with mouth contracted. The _ligule_ is short and ciliate.
The _leaf-blade_ is linear-lanceolate, setaceously-acuminate with a
stout midrib prominent beneath, hispid or scabrid above, smooth or
sometimes scaberulous and glaucous beneath, spinulosely scabrid at the
margin, 5 to 24 inches by 1/4 to 1 inch.
[Illustration: Fig. 145.--Rottboellia exaltata.
1 and 2. A portion of the spike, back and front view; 3, 4, 5 and 7. the
first, second, third and the fourth glume, respectively, of the sessile
spikelet; 6 and 8. palea of the third and the fourth glumes of the
sessile spikelet; 9. ovary; 10, 11, 12 and 14. the first, second, third
and the fourth glume of the pedicelled spikelet; 13 and 15. palea of the
third and the fourth glume of the pedicelled spikelet.]
The _racemes_ are stout, cylindrical below and very narrow and with
imperfect spikelets above, joints are smooth and rounded dorsally. The
_sessile spikelets_ are as long as the joint or slightly shorter and has
four glumes. The _first glume_ is ovate-oblong, thickly coriaceous,
smooth at the back with a truncate base and a transverse ridge at the
base inside, many-nerved, with very narrow inflexed margins and very
narrow wings at the top, the apex is obtuse or emarginate. The _second
glume_ is equal to the first glume in height, chartaceous, gibbously
convex, broadly ovate, acute, 9- to 11-nerved, and with a short wing to
the keel at the apex. The _third glume_ is oblong or elliptic-oblong,
rigid with a hyaline centre and coriaceous at the sides, 3-nerved,
paleate and with three stamens; _palea_ is as long as the glume,
coriaceous with inflexed hyaline margins. _Lodicules_ are cuneate, with
toothed edge. The _fourth glume_ is a little shorter than the third,
ovate from a broad base, hyaline and acute, 1-nerved, paleate and
usually with an ovary and two _lodicules_: _palea_ is hyaline, as long
as the glume. but narrower, nerveless. _Lodicules_ are quadrate; grain
somewhat large oblong and compressed. The _pedicelled spikelets_ are
usually imperfect.
This grass occurs all over the Presidency in cultivated dry fields.
_Distribution._--Throughout the lower hills
|