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 _inflorescence_ is an erect, narrow panicle consisting of spikes
varying in number from 5 to 12 and in length from 2 to 3 inches. The
_spikes_ are erect, pressed to the very slender rachis, longer than the
internodes of the main rachis, stalked or sessile, mostly simple but
sometimes the lower dividing into two or three branches, 1/2 to 1 inch
long. The rachis of the spike is very slender, angular, flexuous,
narrower than the spikelets, scaberulous with a few long cilia at the
angles.
The _spikelets_ are very small, 1/16 inch long, turned all to one side
and closely packed in two rows, oblong or oval-oblong, obtuse or
subacute, softly hairy, pale green or purplish, with very short pedicels
which are pubescent with a few long hairs towards the thickened cupular
tips.
There are four _glumes_ in the spikelet. The _first glume_ is very
small, membranous, glabrous, broader than long, cordate or triangular,
broadly but shallowly emarginate, nerveless or very obscurely 1- to
2-nerved. The _second glume_ is pale or purplish, 5-nerved, hairy, as
long as the third glume, membranous, oblong and obtuse. The _third
glume_ is pale, nearly equal to the second glume with a longitudinal
depression at the back, less hairy than the second glume, 3-nerved
(rarely 5-nerved also); _palea_ is present, and it is hyaline, shorter
than the glume, truncate or shallowly retuse, usually barren but
occasionally with three stamens. The _fourth glume_ is oblong, rounded,
coriaceous, smooth, shining, dorsally flattened, 3- or indistinctly
5-nerved; _palea_ is similar to the glume in texture and with folded
margins. There are three _stamens_ with yellow anthers. _Lodicules_ are
two, very small and distinct. _Ovary_ has two styles with feathery
_stigmas_ white at first, but turning deep purple while withering.
This delicate and small grass occurs here and there as mere tufts
especially in sheltered situations. It usually flourishes in black
cotton soils amidst cholam (_Andropogon Sorghum_), although it thrives
equally well in other rich soils. This is considered to be a very good
fodder grass.
_Distribution._--It is fairly common all over the Madras Presidency, and
goes up to 3,000 or 4,000 feet. It occurs in Africa, America and Italy.
[Illustration: Fig. 82.--Panicum flavidum.]
=Panicum flavidum, _Retz._=
This plant is a tufted annual. It branches freely from the base;
branches are tufted, decumbent at first but soon becoming erect,
slender, glabrous, compressed and leafy, varying in length from 1 to 3
feet.
Leaves are somewhat distichous. The _leaf-sheath_ is compressed,
glabrous, sometimes with a tinge of purple, the lower ones swollen at
the base and the mouth is hairy. The _ligule_ is a fringe of hairs.
Nodes are glabrous.
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