132 L egU 111 inOSCE . \Pithecolobium~ 



less, a very early introduction. It is figured in Bedd. Fl. Sylv. t. 188, and 

 is a native of Tropical America. There are large old trees in Colombo- 

 and Galle forts. 



2. P. umbellatum, Benth. in Lond. Joum. Bot. iii. 202 (1844).. 

 Xyamalai, Xchavalai, T. 



Mimosa umbellata, Vahl, Symb. ii. 103. Thw. Enum. 100. C. P. 1530. 

 Fl. B. Ind. ii. 303. 



A small tree with rather smooth grey bark, lateral twigs 

 often ending in a spinous point, young parts glabrous ; 1. 

 rather small, rachis about f in., glabrous or pubescent with a 

 gland between insertion of each pair of pinnse, stip. short, 

 acute sometimes spinous, often absent, pinnae 2 pair, i^-i^in., 

 lfits. 10-16 (5-8 pair), sessile, closely placed, §-§ in., oblong, 

 very obtuse, glabrous on both sides, the terminal pair broader 

 and approximated ; fl. on glabrous ped., umbels on peduncles 

 about 1 in. long ; cal. tubular-funnel-shaped, glabrous, segm. 

 very short, triangular ; cor. twice as long as cal, puberulous, 

 segm. lanceolate, acute; stam. exserted \ in. beyond cor., pod 

 4-5 in. by f in. wide, shortly stalked, curved nearly into a 

 circle, not twisted, strongly constricted between seeds (almost 

 moniliform), glabrous and shining, ultimately breaking up 

 into i-seeded indehiscent joints; seeds 7-10, very fiat, nearly 

 circular. 



Dry and intermediate country; rare. Jaffna; Arippu ; Mannar; 

 Teldeniya. Fl. Sept.-Nov.; creamy white. 



Also in Southern India and Malay Islands. 



First collected by Kcenig. Turns black in drying. Peadily dis- 

 tinguished by its jointed indehiscent pod. Mimosa nitida, Vahl, is 

 probably according to Benth. (I.e. 583) this species; the specimen in 

 Vahl's Herb, is from Ceylon. 



P. S avian, Benth. {Inga Saman, Willd.), a native of Central and 

 Tropical S. America, whence it was introduced into Jamaica, where 

 it is called ' Guango,' has been very much planted as a shade-tree by 

 roads and in public places. It was introduced to Ceylon about i85i,and 

 there are very large trees in Peradeniya planted in that year. The pod 

 is straight and indehiscent, with a sweet pulp round the seeds, and it 

 scarcely fits well in the genus Pithecolobium. It is often called the ' Rain- 

 tree,' and grows with great rapidity to its full size. 



3. P. bigeminum, Benth. in Lo?id. Joum. Bot. iii. 206 (1844). 

 Xalatiya, S. 



Fl. Zeyl. n. 218. Mimosa bigemina, L. Sp. PL 517. Thw. Enum. 100. 

 C. P. 644. 



Fl. B. Ind. ii. 303. Hort. Malab. vi. t. 12. 



A moderate-sized tree, with thin, smooth brown bark, 

 young parts glabrous ; 1. rather large without stip., main 

 rachis 4-6 in., glabrous, channelled above, with an oval gland 

 near the base and another between bases of upper pair of 

 pinnae, pinnse 2 (rarely 3) pair, unequal, lowest pair very much 



