290 



LEGUMINOSM, 



[Cassia. 



Leaves 2-pinnate, anthers versatile 

 (Tribe XII., Etjc^salpinie^). 

 Pod not winged. 

 Sepals imtrieate, pod not monili- 

 f<-rm . . . . 



Sepals valvate, p ~'d monilif orm 

 Pod winged along the upper suture . 

 Pod winged at the apex 



61. c^salpinia. 



62. Parkinsonia. 



63, Mezonbxtbtjm. 



64, Ptebolobium. 



58. CASSIA, Linn. ; Fl. Brit. Ind. ii, 261. 



Erect shrubs or trees, rarely herbs. Leaves abruptly pinnate. 

 Floivers usually large and showy, in axillary racemes and terminal 

 panicles. Calyx-iuhe yQxj short; sepals broad or narrow, imbri- 

 cated. Petals 5, imbricated, sub-equal, usually broad. Stamens nor- 

 mally 10, but rarely all perfect, 3-5 being often reduced to staminodes,- 

 or altogether absent ; anthers usually basifixed, dehiscing sometimes 

 by terminal pores. Ovary sessile or stalked, many-ovuled; style 

 incurved ; stigma terminal. Pod very variable, terete or flat, usually 

 septate, dry, dehiscent or indehiscent, the albuminous flattened seeds 

 sometimes parallel with the valves, sometimes with the septa. — Species 

 about 380, everywhere in the tropics, a few extra-tropical. 



Trees, shrubs or stout herbs, with large 

 leaflets and ohtuse sepals. 

 Stamens 10, all fertile. 

 Lower 2 cr 3 stamens with longer 



filaments and larger anthers; pods 



very long, terete, indehiscent ; 



seeds separated by thin transverse 



partitions. (Sect. Fistula) , 

 Stamens nearly equal in length ; 



pods flat, dehiscent. (Sect, Psil- 



orhegma) . . . . . 



The 3 upper stamens barren (Sect. 



Senna); pods dehiscent, more or less 



compressed. 



Leaf-rachis with a single gland at 



the hase. 



Leaflets 3-5 pairs .... 



Leaflets 8-12 pairs .... 

 Leaf-rachis with glands between 1 or 



more pairs of leaflets. 



One giand between the lowest pair of 

 leaflets 



One gland between the leaflets of 

 each pair . , , . . 

 Leaf-rachis without glands 



1. C. Fistula. 



2. C. glauca. 



3. C. occidentalis. 



4. C. Sophera. 



5. C. obtusifolia. 



6. C. auriculata.- 



7. C. ohtusa. 



