Materials for a Flora of the Malayan Peninsula. 24:7: 



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



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



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

 underslirub rarely over 2 feet high, with stems and branchlets sparsely 

 prickly and copiously beset with defiexed 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 ; 

 pinnas 2"5-3'5 in. long, the rachis beset Avith 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. lojig, '15 in. wide ; sessile. Inflorescence 

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

 •35 in. in diam. ; peduncles very slender "75-1 in. long, beset with spread- 

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

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

 filaments '8 in. long, filiform, free, anthers without glands. Ovary 

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

 recurved, membranous, '6-1 in. long, '2 in. across, made up of 3-5 J-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. DO. Prodr. -11, 426 ; Roxb. Hort. Beng. 41 ; Wall. Cat. 5292 ; 

 Roxb. Flor. Ind. IF, 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 havfe 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. lY, 395. A 

 woody shrub with puberulous branchlets soon glabrescent, sparingly 

 armed with strong compressed slightly recurved prickles. Leaves 2- 

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

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

 l'2-20- 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., arrano^ed in 



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