A Handbook of Some South Indian GrassesRangachari, K.
Science
A Handbook of Some South Indian Grasses
Rangachari, K.
Grasses -- India, South; Plants -- India, South
The _leaf-sheath_ is distinctly striate, covered with scattered long
tubercle-based hairs, very rarely glabrous, keeled. The _ligule_
consists of a row of hairs. The _nodes_ are hairy.
The _leaf-blade_ is flat, ovate-lanceolate, broad and cordate at base,
subacute or obtuse, with a distinct midrib and three main veins on each
side of it, glabrous on both sides, but usually with tubercle-based
hairs on the two sides of the midrib, on the lower side, the margins are
distinctly ciliate with tubercle-based long stiff hairs and very finely
serrate; the blade varies in length from 3/4 to 3 inches and in breadth
from 3/4 to 1/2 inch.
The _inflorescence_ consists of three to ten spikes springing from the
top of a slender glabrous peduncle 2 to 6 inches long. The _spikes_ are
whorled, about 3 inches or so in length, naked towards the base to about
one-fourth of its length, the rachis is fine, filiform, scabrid.
The _spikelets_ are solitary or binate, dorsally compressed, pale green
or reddish, very shortly pedicelled, 1/4 to 5/16 inch long inclusive of
the short awn, pedicel is cupular at the tip.
There are four _glumes_ in the spikelet. The _first glume_ is somewhat
narrow ovate-lanceolate, hyaline, acuminate and 3-nerved. The _second
glume_ is membranous, ovate-lanceolate, twice as long as the _first
glume_, cuspidately acuminate, 5-nerved; the two marginal nerves are
provided with long reddish bristly hairs. The _third glume_ is oblong
lanceolate, obtuse, 5-nerved, a little shorter than the second glume,
paleate and with stamens; _palea_ is short. The _fourth glume_ is
coriaceous, ovate-lanceolate, nearly as long as the second glume, awned
at the apex, paleate, with three stamens and an ovary; the _palea_ is as
long as the glume, elliptic oblong, obtuse. _Lodicules_ are small,
cuneate.
[Illustration: Fig. 108.--Axonopus cimicinus.
1. A portion of the spike showing spikelets; 2, 3, 4 and 5. the first,
second, third and the fourth glume, respectively; 4a and 5a. the palea
of the third and the fourth glume, respectively; 6. lodicules, stamens
and the ovary.]
This is a common grass growing in the plains and lower hills in waste
places.
_Distribution._--Occurs all over India.
8. Setaria, _Beauv._
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