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 somewhat compressed and loose, covered with
scattered long hairs, some of them being tubercle-based; the margin is
ciliate on one side only. The _nodes_ are pubescent with long hairs. The
_ligule_ is a distinct fringe of hairs.
The _leaf-blade_ is broadly lanceolate, cordate at base, amplexicaul,
acuminate or acute, with scattered long hairs both above and below, and
some of the hairs of the under surface are tubercle-based, convolute
when young; margin of the leaf is wavy, minutely serrate, and ciliated
with distant hairs towards the lower half of the leaf when young; the
midrib is prominent below.
[Illustration: Fig. 94.--Panicum javanicum.
1 and 2. Front and back view of a spike; 3, 4, 5 and 6. the first,
second, third and the fourth glume, respectively; 5a and 6a. the palea
of third and fourth glumes; 7. the ovary and the stamens.]
The _inflorescence_ is a panicle of spikes on a short or long erect
slender peduncle. _Spikes_ vary from two to ten in number and in length
from 1/2 to 2 inches, distant and spreading; the rachis of the spike is
zigzag, somewhat flattened with a wavy ridge, scaberulous or glabrous,
swollen towards the base and the swollen part is pubescent.
The _spikelets_ are biseriate, loosely imbricate, ovate, acute,
pubescent or villous (sometimes quite glabrous), sessile or shortly
pedicelled; the pedicels have one or two (rarely more) long hairs.
There are four _glumes_. The _first glume_ is small, membranous, less
than 1/2 of the third glume, ovate, acute or obtuse, 3- to 5-nerved. The
_second glume_ is nearly equal to the third, ovate acute, generally
7-nerved and sometimes 7- to 13-nerved. The _third glume_ is similar to
the second in shape, generally 5-nerved and occasionally 7-nerved,
paleate with three stamens or empty; _palea_ 2-nerved, ovate or oblong,
margins infolded. The _fourth glume_ is ovate or oblong, rugulose,
chartaceous, apex with a distinct mucro concealed in the second and
third glumes; _palea_ same as the glume in texture, etc. _Anthers_ are
yellowish; _stigmas_ are feathery and purple in colour; _lodicules_ are
small and fleshy.
This is an excellent fodder grass. Though it is an annual it grows
rapidly under favourable conditions. A single plant found growing in the
compound of the Agricultural College, Coimbatore, weighed 15 lb. and
occupied 15 square feet of the ground. It flourishes in cultivated dry
fields and in rich loamy soils. (See fig. 7.)
_Distribution._--Plains of India and Ceylon and in Tropical countries
generally.
[Illustration: Fig. 95.--Panicum ramosum.]
=Panicum ramosum, _L._=
This is an annual with stems erect or ascending from a creeping base,
rooting at the lower nodes, 1 to 2 feet long. The stem is slender or
stout, usually glabrous though occasionally glabrescent or pubescent,
channelled on one side, branched from base upwards, and leafy.
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