161 



keel prominent below, depressed above, nerves about 11 pairs, 

 prominent, inarching just within the margin, 15 cm. long, 3.5 to 4 cm. 

 wide, petiole 1.5 cm. long, stout. Cymes large, lax, lateral on the 

 branches below the leaves, 10 cm. long, 8 cm. across. Peduncles 2 to 

 5 cm. long, stout-angled, branches similar, the longest 5 to 6 cm. 

 long, branchlets trichotomous, with about 6 sessile crowded flowers 

 at the tip. Bi'acts deciduous. Calyx tube, infundibuliform, 2 mm. 

 long, 4 mm. across. Petals connate, falling off in a rounded cap. 

 Stamens short, nearly 5 mm. long. Style 5 mm. much longer than 

 the calyx, slender. 



Flowers scented, whitish. 



Hills of Koh Samui. No. 5730. 



This belongs to the Jambolana section and is allied to 



E. oijerculata, Roxb. but has larger spreading cymes and very different 



flowers. 



MELASTOMACE^. 



29. SONERILA SUCCOSA, sp. nov. 



Herbaceous leaves few, whorled at the top of the stems. Stems 

 erect or ascending weak, 20-30 cm. long. Leaves ovate lanceolate 

 to ovate, fleshy obtuse denticulate with short hairs on the teeth 

 2 to 6 cm. long, 1-4 cm. wide. 



Nerves about 4 pairs, petioles 2-3 mm. long. Peduncles 4-8 cm. 

 long. Flowers umbellate about 4 on pedicels, 3 mm. long. Calyx 

 long, smooth naiTow with acute points 5 mm. long. Petals 3 lanceo- 

 late acuminate 7 ram. long, 4 mm. wide, apparently white with 

 rather long pink tips. Stamens 3, anthers elongate acuminate conic, 

 orange, 7 mm. long, filaments short violet purple. Style as long, 

 slender. Capsule smooth, goblet shaped infundibuliform with shoi't 

 acute lobes, 1 cm. long, 4 mm. wide. 



Koh Pennan. 



Nearest to S. succulenta, Stapf form Perak. 



m. MEMECVLON EDULE v.ve. OVATA, C. B. Clahke. 



Koh Pennan. No. 5749. 



Flowers cobalt blue, turning lilac. Distrib. — Indo-^lulaj^a. 



LYTHRACE^. 

 .{1. FEMPHIS ACIDULA, FoRST. 



Koh Pennan. No. 5755. Distrib. — Burma and Ceylon to Malaya. 



SAMYDACfi.E. 

 32. HOMALIUM GRIFFITHIAXUM, KiRX. 



Koh Pennan. No. 5748. Distrib. — Tena.sserim to Kedah. 



Small ti'ee, about six inches in diameter. Flowers greenish- 

 yellow, scented. Leaves small and glabrous. 



