Flora of the Malayan Peninsula. 153 



the apex acuminate, the base much narrowed ; both surfaces dirty 

 olivaceous when dry, glabrous ; main-nerves 5 or 6 pairs, ascending, 

 faint ; length 2*5 to 3*5 in. ; breadth 1"2 to 1*5 in. ; petiole '4 in. ; winged 

 near the apex : smaller leaf about '1 in. long, lanceolate, sessile. 

 PecZwncZe terminal, erect, 3 in. long; minutely hairy, with a whorl of 

 lanceolate bracts near its base and another '2 in. long at the base of the 

 10- to 12-flowered terminal umbel. Floiver-pedicels about '3 in. long, 

 slightly unequal, flattened, sub-glabrous. Calyx with a broadly ovate- 

 rotund puberulous tube '1 in. long, and 5 minute radiating teeth. 

 Corolla unknown. 



Perak : Ridley 110. 



17. Argostemma oblongum, King n. sp. Stem 6 to 15 in. high, 

 slightly branched, half as thick as a goose-quill, rooting in its lower part, 

 covered with scaly deciduous pubescence. Leaves membranous, very 

 unequal ; the larger of each pair elliptic to oblong, acute, the base 

 rounded and slightly and obliquely cordate; upper surface brownish, 

 olivaceous, everywhere glabrous, the midrib depressed ; the lower pale, 

 glabrous except the midrib and 6 to 8 pairs of curved spreading slightly 

 prominent main-nerves; length 2 to 3 in.; breadth 1 to 1'35 in.; 

 petiole "1 to '2 in. ; smaller leaf sessile, ovate-oblong or ovate-cordate, 

 •25 to "4 in. long: stipules like the smaller leaf but not so large. Cymes 

 few-;flowered, solitary, pedunculate, terminal or from the upper axil, 

 shorter than the leaves, with very few, shortly pubescent branches, 

 often with a whorl of lanceolate bracts below the middle of the peduncle 

 and at the base of the umbels. Floivers "25 in. long, on pubescent 

 pedicels of about the same length. Calyx pubescent, campanulate, with 

 5 short, triangular, acute, spreading teeth. Corolla twice as long as the 

 calyx, slightly hairy outside ; the lobes broadly lanceolate, nerved, re- 

 flexed. Stamens 5, coherent in an erect cone slightly shorter than the 

 corolla. Anthers dehiscing longitudinally ; the connective forming 

 marginal wings and a long flat apical process slightly recurved at the 

 point ; filaments short, curved, thick, attached to the back of the anther 

 near its base. Capsule sub-globular, crowned by the slightly enlarged 

 calyx-lobes, minutely pubescent, "1 in. in diara. Seeds numerous, angled, 

 black, large in size for the genus. 



Perak: King's Collector 907, 10261, 10675; Scortechini 159. 

 Selangoe: Ridley 1410, Johor : King. 



18. Argostemma ophirense, Maing. ex Hook. fil. Fl. lud. III. 45. 

 Stem, ascending, rooting at the base, little-branched, minutely nodose, 

 succulent, terete and thicker than a crow-quill when dry, deciduously 

 scurfy-hairy, 4 to 10 in. high. Leaves sub-coriaceous, glabrous but 

 occasionally with a few scattered hairs on the midrib, very unequal, the 



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