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 _spikelets_ vary from 1/2 to 2/3 inch excluding the awn. There are
three _glumes_. The _first glume_ is about 3/8 inch long,
lanceolate-linear, narrowed into a short awn. The _second glume_ is
longer than the first, 1-nerved and minutely 2-toothed or notched at the
base of the awn. The _third glume_ is 5/8 inch long, 3-nerved, nearly
smooth. The callus of the third glume is long, densely silkily hairy
with three awns not jointed at the base with the glume; _awns_ about 1
inch or more. _Lodicules_ are ovate-lanceolate, fairly large. Grain is
narrow, cylindrical.
This grass grows in open dry situations in many parts of the Presidency.
_Distribution._--All over India.
=Aristida Hystrix, _Linn. f._=
This is a diffuse perennial grass with a creeping root-stock, with
fairly stout sometimes proliferous freely branching stems; branches are
stiff, erect, inclined or prostrate, varying in length from 6 inches to
2 feet.
The _leaf-sheath_ is glabrous and cylindric. The _ligule_ is a ridge of
close-set hairs. _Nodes_ are glabrous.
The _leaf-blades_ are quite flat, narrowly lanceolate-linear very finely
acuminate, glabrous on both the surfaces but with tufts of hairs on both
sides at the base where the blade joins the sheath, prominently nerved;
margin is even and without any hyaline border, the blade varies in
length from 2 to 9 inches.
[Illustration: Fig. 174.--Aristida Hystrix.
1. A spikelet; 2, 3 and 4. the first, second and the third glume,
respectively; 4a. the third glume and its awns; 5. palea of the third
glume; 6. lodicules, anthers and the ovary.]
The _inflorescence_ is an effuse panicle, as long as broad, varying in
length from 4 to 10 inches; the main rachis is stout, finely scabrid,
with stiff slender, horizontally spreading or reclining branches that
arise in pairs from the nodes, the branches have swollen bases at the
nodes and they are covered by long hairs.
The _spikelets_ are 3/8 inch long excluding the awn. There are three
_glumes_. The _first glume_ is chartaceous, lanceolate, acuminate and
terminating in an awn, 1-nerved, 3/8 to 1/2 inch including the awn, with
the keel very finely scabrous. The _second glume_ is longer than the
first, chartaceous, lanceolate, terminating in an awn, 1/2 to 3/4 inch
long including the awn, with a smooth keel. The callus of the third
glume is short, pointed and villous. The _third glume_ is chartaceous
finely scabrid 1/4 to 3/8 inch long excluding the awn, 3-nerved, 3-lobed
at the apex and the lobes becoming awns; _awns_ are 1 inch long, the
middle one being a little longer. The outer margin of the glume is
broader than the inner margin and is rounded at the apex at the base of
the awn. There are three _stamens_ and the anthers are pale or purplish.
The style branches are purplish. The _lodicules_ are 1/8 inch long
obliquely lanceolate.
This grass is fairly common in all open dry situations throughout this
Presidency.
_Distribution._--Deccan Peninsula and Ceylon.
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