Materials for a Flora of the Malayan Peninsula, 77 



8. EcGENTA, Linn. 



Trees or shrubs, smooth or rarely tomentose or setose. Leaves 

 opposite rarely alternate, coriaceous or membranous, pinnate-nerved. 

 Inflorescence centripetal with solitary axillary flowers, or in short racemes 

 or centrifugal in dense terminal or axillary cymes or in terminal or 

 lateral trichotomous panicles. Bracts usually small and deciduous. 

 Calyx-tube globose or more or less elongate, 4- or 5-lobed or sub-truncate. 

 Petals 4 or 5, free and spreading or connivent calyptrate and caducous. 

 Disc lining the calyx-tube, staminiferous at the edge. Stamens numer- 

 ous, in many rows, usually combined in 4 or 5 bundles ; filaments 

 slender ; anthers small, versatile, dehiscing longitudinally. Ovary 

 inferior, 2- rarely 3-celled ; ovules many in each cell ; style filiform, 

 stigma small. Frait inferior, crowned by the remains of the calyx, 

 pulpy, rarely dry. Seeds few, oblong or globose, often compressed, 

 testa membranous or cartilaginous, albumen none or very scanty ; 

 embryo thick, fleshy. Distrib. — About 650 species chiefly in tropical 

 America and Asia ; a few in tropical Africa and Australia. 



Sect. I. Jambosa. Flowers usually 4-merous, oftea large. Calyx clavate, 

 funnel-shaped or sub-globose, its starainal disc often thickened and its month with 

 4-persistent often thickened lobes crowning the fruit. Petals free, Berry pulpy ; 

 seeds large. 

 Leaves large — 



Leaves with their main nerves under 20 pairs, bold, the 



reticulations inconspicuous, mostly from 8 to 14 in. long 



(except in Nos. 8, 9 and 10) — 

 Flowers 1 inch or more across — 



Leaves on very short inconspicuous petioles, auricled C ^ ^ J inosa. 

 at the cordate base, often amplexicaul ... ... ) 



2. E. Perakensis, 



3. B. javanica. 



Leaves neither cordate nor amplexicaul but narrowed ( 4. E. Janibos. 



at the base \ 5. E. malaccensis. 



Flowers half an inch or at most three quarters of an 

 inch across — 



Leaves glabrous — 



6. E,pseudo-formosa. 



Young branches sub-terete or compressed ... J ^' I'^jP^^^oso. 



8. E. densiflora. 



9. E. plumlea. 

 Young branches 4-angled ~10. E. Scortechinii, 



Leaves hairy beneath ; flowers in terminal panicles 11. E. mollis. 

 Leaves 8 to 16 in. long, with very numerous (more than 

 20 pairs) of bold distinct sub- horizontal main nerves • 

 flowers half an inch or more in diameter — 



12. E, quadrafa. 



Reticulations of leaves distinct ^ 13, E. scalarinervis. 



pergamentacea. 

 507 



... ] 13. E. 

 W4. E. 



