FREE BOOKS

Author's List




PREV.   NEXT  
|<   99   100   101   102   103   104   105   106   107   108   109   110   111   112   113   114   115   116   117   118   119   120   121   122   123  
124   125   126   127   128   129   130   131   132   133   134   135   136   137   138   139   140   141   142   143   144   145   146   147   148   >>   >|  
stribution._--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.] The _racemes_ are stout, cylindrical below and very narrow and with imperfect spikelets above, joints are smooth and rounded dorsally. The _sessile spikelets_ are as long as the joint or slightly shorter and has four glumes. The _first glume_ is ovate-oblong, thickly coriaceous, smooth at the back with a truncate base and a transverse ridge at the base inside, many-nerved, with very narrow inflexed margins and very narrow wings at the top, the apex is obtuse or emarginate. The _second glume_ is equal to the first glume in height, chartaceous, gibbously convex, broadly ovate, acute, 9- to 11-nerved, and with a short wing to the keel at the apex. The _third glume_ is oblong or elliptic-oblong, rigid with a hyaline centre and coriaceous at the sides, 3-nerved, paleate and with three stamens; _palea_ is as long as the glume, coriaceous with inflexed hyaline margins. _Lodicules_ are cuneate, with toothed edge. The _fourth glume_ is a little shorter than the third, ovate from a broad base, hyaline and acute, 1-nerved, paleate and usually with an ovary and two _lodicules_: _palea_ is hyaline, as long as the glume. but narrower, nerveless. _Lodicules_ are quadrate; grain somewhat large oblong and compressed. The _pedicelled spikelets_ are usually imperfect. This grass occurs all over the Presidency in cultivated dry fields. _Distribution._--Throughout the lower hills
PREV.   NEXT  
|<   99   100   101   102   103   104   105   106   107   108   109   110   111   112   113   114   115   116   117   118   119   120   121   122   123  
124   125   126   127   128   129   130   131   132   133   134   135   136   137   138   139   140   141   142   143   144   145   146   147   148   >>   >|  



Top keywords:
fourth
 

hyaline

 

oblong

 

spikelet

 
nerved
 

smooth

 
narrow
 

spikelets

 
pedicelled
 
coriaceous

sessile

 

hispid

 

glumes

 

margins

 

paleate

 
Lodicules
 
inflexed
 

Rottboellia

 

imperfect

 
exaltata

shorter

 

height

 

scabrid

 

beneath

 

broadly

 

chartaceous

 

gibbously

 

convex

 
elliptic
 
centre

stribution

 
obtuse
 

Common

 

inside

 

truncate

 

transverse

 

emarginate

 
tubercle
 

cuneate

 
occurs

compressed

 

Presidency

 

cultivated

 
Throughout
 
Distribution
 

fields

 

quadrate

 

toothed

 

sheaths

 

Deccan