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_ consists of a solitary terminal or axillary _raceme_
1 to 2 inches long; joints are shorter than the spikelets, excavate on
one side and with a pore which is hidden by the sessile spikelet. The
_sessile spikelet_ consists of _four glumes_. The _first glume_ is
somewhat fiddle-shaped, dilated above the middle into an orbicular wing,
and towards the base into two auricles joined by a transverse ridge,
scaberulous, 5-nerved. The _second glume_ is somewhat membranous, ovate,
acute and 3-nerved. The _third glume_ is hyaline, thin, oblong, obtuse
and nerveless. The _fourth glume_ is lanceolate, nerveless and without a
palea, bisexual. There are two cuneate _lodicules_. The _pedicelled
spikelets_ also have four glumes and the pedicels usually free, but also
sometimes adnate. The _first glume_ is oblong, obtuse, winged on one
side only, 5-nerved. The _second glume_ is boat-shaped, chartaceous,
3-nerved crested with a semi-circular wing at the apex. The _third
glume_ is hyaline, broadly oblong, obtuse, 3-nerved with a lanceolate
hyaline palea. The _fourth glume_ is oblong, obtuse, male.
[Illustration: Fig. 144.--Rottboellia Myurus.]
1. A portion of the raceme showing front view; 2. a portion of the
raceme showing the back view; 3. a sessile and a pedicelled spikelet
showing the front side; 4. the same showing the back side; 5, 6, 7 and
8. the first, second, third and the fourth glume of the sessile
spikelet, respectively; 9 ovary and lodicules; 10, 11, 12 and 14. the
first, second, third and the fourth glume, respectively, of the
pedicelled spikelet; 13 and 15. palea of the third and fourth glumes of
the sessile spikelet.
This is very common in dry somewhat sandy places in the East Coast
districts.
_Distribution._--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.]
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