100 PAPILIONACE/E. 



broad rounded standard and sharp pointed keel ; the 

 stamens are all united into a tube (monadelphous) and 

 are of two lengths, alternately short and long, and with 

 anthers round and versatile, or pointed-oblong and 

 rigidly fixed to the filament ; the style has a tuft of hairs 

 at the tip ; and the pod, as said above, is always much 

 inflated. All our hill-top species have simple leaves 

 but digitately (not pinnately)-compound leaves also 

 occur. The wing petals have each a patch of minute 

 ridges or puckerings, which no doubt is of value in con- 

 nection with the visits of insects. 



Species about 250, scattered over the tropics and the sub- 

 tropical parts of the world, but not in temperate regions. The 

 F.B.I, gives 77 species for India alone, to which must be added 

 seven or eight founded since. 



KEY OF THE SPECIES. 

 ' Stipules broad at the top and decurrent to nearly the next 

 leaf, forming wings to the stem .... § alatce. b 

 Stipules ear-shaped and together encircling the stem : a 

 large shrub or small tree with flowers in erect spikes 

 a^ /. 109. C. semperflorens. 



Stipules small or absent : shrubs or trees ; foliage more 



or less silky e 



Stipules small or absent : herbs erect or weak and 



trailing . h 



Leaves ovate or lanceolate acute, silky but when dry a 



little scabrid : erect plants ; foliage drying brown . c 



Leaves oblong to round, often retuse : erect or prostrate 



[ plants ; leaves drying black below d 



r Shrubby to 2 feet, leaves mostly i inch. 

 j /. 104. C. scabrella. 



^ j Usually J^ foot, leaves Y^ inch, narrow pod ^ inch with 

 [ stalk of one-sixteenth of an inch. . /. 104. C. conferta. 



f Small bushy plant : corolla two-thirds of calyx 



I /. 103. C. bourneae. 



I Stems prostrate, not much branched : corolla about equal 



[ to the calyx /. 102. C. ovalifolia. 



[ Branches very brown shaggy as also the calyx ; leaves 



e-{ crowded h 



[ Branches not shaggy g 



\ 



b^ 



