248 Materials for a Flora of the Malayan Peninsula. 



ample patent terminal panicles with puberulous main-rachis and corn- 

 pound puberulous lower branches ; the w^hole 6-S in. long, 4-6 in. wide, 

 peduncles of individual heads '6-75 in. long. Calyx campanulate, 

 teeth short, valvate. Corolla '05 in. long. Stamens 8-10, filaments free, 

 •1 in. long. Ovary stalked ; style filiform, stigma small terminal. Pod 

 with a slender stalk 2 in. long, flat, almost straight, membranous, 1*5-2 

 in. long, '25 in. wide, made up of 6-8 glossy, finely reticalated 1-seeded 

 joints that fall away when mature from the persistent unarmed sutures. 

 Bak. in Flor. Brit. Ind. IT, 291. M. nigrescens Maingay MSS. 



Singapore ; Maingay 582 ! Anderson 34 ! Kurz ! King ! Distrib. 

 Occurs also in China and in Borneo, but no doubt is an introduction 

 from America ; it is only found near clearings. 



65. Acacia Willd. 



Spinose or prickly shrubs or trees, erect or climbing. Leaves 

 bipinnate, with minute leaflets. Flowers in globose heads or cylindrical 

 spikes, hermaphrodite or polygamous, usually pentamerous. Calyx 

 campanulate or funnel-shaped, shortly toothed. Petals exserted, united 

 in the lower half. Stamens free, indefinite, much exserted ; anthers 

 minute, not gland-crested. Ovary stalked or sessile, many-ovuled ; style 

 filiform, stigma minute capitate. Pod ligulate or oblong, not jointed, 

 usually compressed and dry, dehiscent or indehiscent, rarely turgid or 

 subcylindrical, sutures straight or wavy, not thickened. Species 430 ; 

 the leafy groups cosmopolitan in the tropics, the great phj^llodineous 

 series, which comprises two-thirds of the genus, almost restricted to 

 Australia. None of the species with spicate inflorescence occur within 

 our area. 



Erect shrubs or small trees, with stipular spines, bracteate 



pedicels and cylindric pods ... ... ... 1. A. Farnesiana, 



Climbing shrubs, with non-spinescent stipules, and with 



prickly branches ; pedicels naked ; pods flat: — 



Flower heads "4 in. across ; leaflets narrow oblong ... 2. A. pseudo-Intsia. 

 Flower heads '2 in. across ; leaflets linear ... ... 3. A. pennata. 



1. Acacia Farnesiana Willd. Sp. PI. IV, 1083. A shrub or low 

 tree with slender zig-zag branches marked with grey dots. Leaves 

 2-pinnate ; rachis downy 1-1*5 in. long with a minute petiolar gland ; 

 pinnae 8-16, 1-1*5 in. long ; leaflets 10-20 pairs, green, sabglabrous, 

 ligidly coriaceous, linear-oblong, "25 in. long, '05 in. wide ; stipules 

 spinescent seldom over •25-35 in. long on the bra.nchlets, persisting and 

 on old branches sometimes over 1 in. long, polished, white, straight. 

 Flowers in rounded heads '35 in. in diam., fragrant, bright yellow ; pedun- 

 cles crowded on axillary nodes, slender, puberulous, '75-1 in. long, with 

 a ring of small bracts at or near the apex. Calyx campanulate, minute. 



248 



