1897.] G. King — Materials for a Flora of the Malayan Peninsula. 247 



Stamens 8-10; rachis of leaf smooth, stem prickly not bristly, 



leaves pinnately divided, sutures of pod not prickly ... ... 2. M. sepiaria. 



1. Mimosa pudica Linn. Sp. PI. 518. A diffusely spreading 

 undershrub rarely over 2 feet high, with stems and branch] ets sparsely 

 prickly and copiously beset with deflexed bristles. Leaves very sensitive, 

 with usually 4 digitate pinnae, sessile at the end of a petiole 2 in. or 

 more long, beset with spreading bristles ; stipules lanceolate *35 in. 

 long, striate, subscarious, with margins beset with spreading bristles ; 

 pinnaa 25-35 in. long, the rachis beset with ascending bristles ; leaflets 

 12-20 pairs, glabrous above, sparsely adpressed-bristly beneath, sub- 

 coriaceous, narrow-oblong, obliquely acute at apex of upper angle, 

 obliquely rounded at lower side of sub-5-nerved base, main- nerve branch- 

 ing slightly upwards, "35 in. long, '15 in. wide ; sessile. Inflorescence 

 capitate, the heads usually in pairs from axils all along the branches, 

 •35 in. in diam. ; peduncles very slender *75-l in. long, beset with spread- 

 ing prickles. Calyx campanulate, teeth short valvate. Corolla pink, *1 

 in. long, petals connate below valvate above. Stamens 4, much exserted, 

 filaments *3 in. long, filiform, free, anthers without glands. Ovary 

 stalked ; style filiform, stigma very small terminal. Pods flat, slightly 

 recurved, membranous, '6-1 in. long, *2in. across, made up of 3-5 1 -seed- 

 ed joints that fall away when mature from the persistent armed sutures, 

 which are clothed with weak spreading yellowish-white bristles '15-2 

 in. long. DC. Prodr. II, 426; Roxb. Hort. Beng. 41 ; Wall. Cat. 5292; 

 Roxb. Flor. Ind. IT, 564 ; Miq. Flor. Ind. Bat. I, 43 ; Bak. in Flor. Brit. 

 Ind. II, 291. The Sensitive Plant. 



Andamans ; extremely common throughout the settlement. Penang ; 

 overspreading the whole coast-line, Curtis 1237 ! Singapore ; T. Anderson 

 32 ! Maingay 584 ! Distrib. Throughout S.-E. Asia, probably ori- 

 ginally introduced from America. 



This, having been introduced into the settlement at Port Blair in the Andamans, 

 has there spread so much as to have become extremely troublesome •$ a large 

 labour force has to be constantly told off to try and keep it in check ; its complete 

 eradication is apparently hopeless. 



2. Mimosa sepiaria Benth, in Hook. Journ. Bot. IV, 395. A 

 woody shrub with puberulous branch lets soon glabrescent, sparingly 

 armed with strong compressed slightly recurved prickles. Leaves 2- 

 pinnate, rachis slightly downy 2 in. long (thepetiolar part '75 in long) ; 

 pinnae 6-8-jugate, 1*5 in. long, subsessile, upper side pubescent ; leaflets 

 12-20- jugate, rigidly coriaceous, narrow-ligulate, caducous, '25— *35 in. 

 long, * 1 — 15 in. wide, subacute at apex, obliquely truncate at lower side 

 of sub-5-nerved sessile base, main-nerve branching considerably up- 

 wards. Inflorescence capitate, the heads "25 in. in diam., arranged in 



