148 Flora of thp- Malayan Peninsula. 



simple, erect, bearing, about or below the middle, a pair of lanceolate 

 bracts about '2 in, to "4 in. long and, at the base of the peduncle, a whorl 

 composed of a single pair of very unequal thin membranoas (when dry) 

 leaves and a pair of stipules; the larger leaf broadly ovate, shortly 

 acuminate, the base rounded or cordate ; when dry the upper surface 

 dark brown, the midrib broad and channelled, the nerves elevated; 

 lower surface pale brown, the midrib and 5 or 6 pairs of spreading 

 slightly curved nerves slightly pi'ominent ; length 3 to 6 in. ; breadth 1*5 

 to 3 in. ; petiole "4 to '8 in. Smaller leaf sessile, ovate-lanceolate, acute, 

 1-nerved, "2 to "5 in. long. Stipules similar to smaller leaf. Cymes 

 terminal, simply or compoundly and laxly umbellate, few- or many- 

 flowered; peduncle slender, 1'5 to 8 in. long, with a whorl of narrow 

 bracteoles at the origins of the branches. Flowers nai-row in bud, '25 

 in. long ; their slender pedicels slightly longer, sometimes lengthening 

 in fruit. Calyx under "1 in, long, campanulate, with broad, blunt, thick, 

 short, spreading lobes. Corolla narrow in bud, more than twice as long 

 as the calyx ; its 5 lanceolate lobes slightly shox'ter than the erect stamin- 

 al cone. Anthers lanceolate, the cells narrowly linear, cordate at the 

 base, edged by the cohering wings formed by the connective and sur- 

 mounted by membranous, flat, apical appendage longer than themselves : 

 filaments short, thick, curved. Capsule hemispheric, crowned by the 

 rather large calyx, subglabrous, '1 in. in diam., 2-celled, dehiscence 

 circumscissile. Hook. fil. Fl. Br. Ind. III. 45. 



JOHOR: Ridley 3730. Pbnang: Xing; Curtis 990; King's Collector 

 2276. Malacca : Maingay (K.D. 895). 



10. Arqostemma DNiFOLiOLOiDE, King n. sp. Rhizome woody : 

 stem fleshy when fresh, glabrous, thinner than a goose-quill and angled 

 when dry, 3 to 7 in. high, bearing one or more pairs of lanceolate, 

 glabrous bracts about "25 in. long, and at the base of the peduncle a pair 

 of very unequal membranous leaves and a pair of stipules all in a whorl; 

 the longer leaf sessile, broadly ovate or ovate-rotund, shortly acuminate, 

 the base rounded or cordate ; upper surface dark brown when dry, with 

 sparse, coarse, glandular hairs or (in var. glabra) glabrous; lower surface 

 pale brown, the broad midrib and main-nerves sparsely glandular-pubes- 

 cent, otherwise glabrous ; main-nerves 9 to 14 pairs, curved, spx-eading, 

 slightly prominent on both surfaces (when dry) but chiefly on the lower 

 length 5 "5 to 10 in. ; breadth 3 6 to 6"5 in. ; smaller leaf sessile, narrowly 

 ovate, acute, about -5 in long ; the stipules similar but usually narrower. 

 Inflorescence terminal, solitary, pedunculate, paniculately umbellulate, 

 lax, usually many flowered ; peduncle and branches glabrous, fleshy 

 when fresh and somewhat stout; bracteoles in whorls (usually of 4), 

 oblong obtuse, concave, connate at the base, about '3 in. long. Flowers 



38 



