1877.] Knowledge of tlie Btirmcse Flora. 55 



Doiihfful SiJecies. 

 1. "Penta/ptera gracilis, Presl. Epim. 214 ; Walp. Ann. III. 859. 

 Hab. Upper Tcnassorim, near Moulmein. 



The leaves are described as whorled by threes, indicating a species of 

 Combretum rather than of Terminalia. 



Combretum, L. 

 Conspectus of Species. 

 Suhg. I. Poivrea, Coram. Flowers 5-inerous. Stamens 10, all equal or alter- 

 nately shorter. Fruits usually 5-, rarely 4- or 6- or 8-cornered or -winged. 



* Calyx funnel-cup-shapecl, 



X Petals none. 

 Leaves only 1^ — 3 in. long ; panicles greyish velvety, the floral leaves not discoloured, 



. . C. apeUilum. 

 X X Petals present. 

 Leaves large, opposite ; panicles rusty or tawny tomentose, the floral leaves white-dis- 

 coloured ; fruits with 5 chartaceous wings, G. decandrum. 



Leaves often whorled by 2 — 4, smooth, coriaceous ; panicles greyish tomentose without 



floral leaves ; fruits with 5 sharp thick almost wing-like corners, ... .C. trifoliatum. 



Similar to the preceding, but leaves strongly nerved and net-veined ; fruits sharply 



4-cornered, G. tetragonocarpum. 



* * Galyx-tuhe tubular, the limb abruptly salver- or cup-shaped. 



Racemes, petioles, and branchlets greyish or rusty puberulous or velvety, .... (7. ovale. 

 Panicles, petioles, and branchlets all rusty pilose ; fruits 5 -winged, puberulous, 



. . G. pilosum, 

 8ubg. II. Gombretum, DC. Flowers 4-merous. Stamens 8, equal or alternately 

 shorter. Fruits usually 4-, rarely 5-winged or -cornered. 



* Galyx shorter or longer tubular-bell-shaped {the limb never abruptly cupula^'). 



Fruits winged, the wings chartaceous and broader than the diameter of the nut. 

 X Flowers shortly pedicelled. 

 All parts glabrous, the leaves opposite ; inflorescence and flowers velvety, G. extensum. 



X X Flowers all sessile. 

 All younger parts, the inflorescence, and leaves beneath coppery or rusty lepidote ; 



leaves large, opposite, G. squamosum.^ 



Leaves usually whorled in threes (at least in the older branchlets), glabrous, when young 



minutely lepidote ; inflorescence and young shoots puberulous, G. Ghinense. 



As preceding, but branchlets, petioles, and inflorescence all rusty tomentose ; leaves 

 more or less pubescent beneath, never lepidote, C. dasystachyum. 



* * Galyx funnel-cup-shaped. Fruits winged or angular. 



X Fruits 4- or 5-winged, the wings chartaceous. Leaves and fruits 

 small. 



t Nuts smooth and glabrous. 

 Young shoots rusty pubescent, the leaves and the 4- or 5-winged fruits glabrous ; 



branchlets terete, G. pyrifoliumy 



All parts, also the 4-winged fruits, more or less silvery lepidote ; branchlets 4-cornered. 



. , G, qtiadrangulare. 

 t t Nuts fibrillose-hirsute. 

 Leaves beneath resinose-dotted ; inflorescence brown-lepidote ; young shoots pubescent, 



..C. Wallichii. 



