C(e.saipfnien'] XLV. LEGUMINOSJE 245 



Secoxd Sub-Order, C^SALPINIEiE. 



Trees, shrubs, climbers, rarely herbs. L. pinna te, pari-bipinuatey rarely 

 unifoliolate. Fi. bisexual, often zygomorpliic. Calyx of 5 more or less connate 

 sepals, often lined in their lower portion by a disk, which bears petals and 

 stamens. Petals 5 or less, imbricate in bud, the posterior (upperj petal inside. 

 Stamens 10 or fewer, rarely numerous, free or more or less connate. Seeds 

 with or without albumen, radicle straight. 



'»' 



Most trees of tbib Sub-Oi'der have a distinct dark-colonred heart wood, the chief 

 exception being the arborescent BauJnnias. Some genera {Hardtciclcia^ Cojpaifera^ 

 Trachylohium and Hipiiencm) have cavitiets in the wood iilled with gnm-rebin, the walls 

 lined by a stratum of thin walled hecreting cellb. The climbing Bauhinias have an 

 anomalous structure. 



A. L. bipiiinato. 



I. Calyx 5-cleft to base or neaily so, &egmentb imbrieate, btanieiih 10. 



Pod not winged 1, CxbALPixiA. 



Pod winged on both siitnreb . . . .2. PELToriioitrM. 

 Pod winged on one suture only . . . .8. ^Ii'ZoM.riiT'M. 

 Pod with a large terminal "wing, 1-beeded, 



indehibcent 4. Pri uulobium. 



II. Calyx 5-cleft to base, segmentb narrow, valvate or slightly' overlapping. 

 Common petiole long ; petals orbicular, nearly 



equal ; pod flat 5. Poinc iana. 



Common petiole long 5 joetals very unequal ; 



pod turgid Colvillea (p. 249). 



Common petiole bliort, leaflets sinuate ; pod 



turgid . . Parkinsoxia (i>. 249). 



Til. Calyx campanulate. PL in dense si)ikes. 



A prickly climber. Stamens 10. . . . (3. Wag ate a, 

 A large tree. Stamens 5 7. Ackocarpus. 



B. L. pinnate, usually paripinnate. 



I. Petals none. 



Perfect stamens 10 8. Hardwickia. 



Pexiect btamens 2-85 long exberted. Leafletb 



opposite 9. Saraca. 



Perfect stamens 2. Leaflets alternate . . Dialium (p. 251). 



II. Petal 1. 



Stamens 3-8. L. paperj^ Pod flat, subinde- 



hiscent 10. Afzelta. 



Stamens 7. L. papery. Pod dehiscent, valves 



woody 11. Pahudia. 



Stamens 10. L. coriaceous. Pod dehiscent, 



valves thick coriaceous, echinate . . . Sindoka (p. 252). 



Ill, Petals 3 or 5, nearly equal. Perfect stamens 5 . 12. Humboldtia. 



ly. Petals 3j unequal. 



Stamens 10 AnnEusriA (p. 252)» 



Stamens 3 13. Tamakindus. 



V. Petals 5. 



Stamens unequal and partly imperfect . . 14. Cassia. 

 Stamens perfect, equal, usually 10 . . .15. Cynomeika. 



C. Leaflets 2, as a rule connate 16. Bauhinia. 



1. C^SALPINIA, Linn, j PL Brit Ind. ii. 254 



Trees, shrubs or woody prickly climbers. El. white^ yellow or red. Oalyx 

 lobes 5, imbricate, the lowest outside and often larger. Petals 5, nearly equal, 

 Stamens 10, free ; anthers uniform^ dehiscing longitudinally. Pod compressed, 

 coriaceous. 



