Young shoots covered by a mealy or scurvy tomentum, A. odorata. 



Subg. II. Anisoptera. Stamens numerous, the conuectivum produced in a bristle ; style 



thick and ovoid ; nuts inferior or nearly so. 

 Quite glabrous, A. glabra. 



OIPTEROCARPUS. 



"^ Calyx-ttibe of fruit more or less globose or turbinate, without any ribs or longitudinal 

 icings on its belly. 

 Calyx-tuhe in fruit toicards the top produced into 5 compressed knobs each 

 situated bettceen 2 lobes. 



Leaves glabrous, or puberulous beneath, .2). tuberculatus. 



Calyx-tube in fruit perfectly terete. 

 X Leaves glabrous and glossy. 



Stipules velvety ; calyx in fruit smooth and more or less pruinous, D. laevis. 



Stipules glabrous, calyx in fruit sprinkled with minute stellate hairs D. Sasseltii. 



X X Leaves beneath or on both sides variously hairy. 



Leaves acuminate, beneath together with the petioles pubescent, D. turbinatus. 



Leaves blunt, hirsute ; all softer parts greyish pubescent, D. obtusifolius. 



Leaves acuminate, often very large ; petioles, young branchlets and the long stipules strigose 

 from short tawny brush-like clustered hairs, D. pilpsus. 



* * Calyx-tube in fruit nnrked with 5 ribs or with as many longitudinal wings. 

 Wings along the belly of fruiting calyx broad. 



Calyx greyish tomentose, when in fruit sparingly stellate, puberulous ; petioles 



long, . .. .c D. alatus. 



Calyx pruinous, quite glabrous ; petioles only half an inch long, D. Griffithii.^ 



Wings along the belly of fruiting calyx very narrow or reduced to ribs. 

 X Leaves blunt. 



All softer parts greyish-villous, D. incanus. 



X X Leaves acuminate. 



Branchlets tomentose, fruiting calyx tube narrowly 5-winged and sparingly hairy, D. costatus.' 



PARASHOREA. 



Nut ovoid, velvety, P. stellata. 



SHOREA. 



X Lnflorescence tomentose or velvety. 



Leaves oblong to elliptical ; the shorter calyx-lobes acuminate, i ..S. obtusa. 



Leaves broadly oval ; all calyx-lobes blunt, , ,.,S. robusta, 



X Inflorescence quite glabrous. 



Calyx quite glabrous, S. floribunda. 



PERTACME. Only species, P. Siamensis. 



HOPEA. 



X Connectivum terminated by a short point. 



Calyx greyish tomentose ; leaves bluntish acuminate, JJ". odorata. 



Leaves oblong, blunt , JEf. Scaphula. 



X X Connectivttm terminated by a bristle exceeding the anther-cells. 



Calyx greyish tomentose ; flowers somewhat larger, ff. gratissima. 



Calyx glabrous, flowers very small, H. Griffithii. 



VATICAj Only species, V. laneeaefolia. 



MALVACE^. 



Conspectus of genera. 



Staminal column bearing filaments up to the summit. Style branches as many as carpels or cells. 



Mature carpels separating more or less readily from the axis. 

 KiBiA. Bracteoles 4-6. Carpels in a single row, 2-3, united in a capsule, opening locnlioidally. 



Staminal column truncate or 5-toothed at the summit, bearing the anthers or filaments on the 



outside, rarely also at the summit. Style-branches as many as ovary-cells. Carpels united in 

 a several-celled loculieidal or indehiscent capsule. 

 Style branched at the summit, the branches spreading or the stigmas radiating. Seeds usually 

 renit'orm. 



1. Dipterocarpus iusignis of App. A. 2. D. gonopterus of App. A. is merged in D. costatus. 



