556 Flora of the Malayan Peninsula. 



when dry ; internodes long. Leaves membranous when dry ; ovate, 

 acuminate at apex, deeply cordate at base ; glabrous on both surfaces ; 

 5 to 7 in. long, 2 to 3 in. broad ; midrib slender, raised beneath, bearing 

 a small cluster of glands at the base just above the petiole ; main 

 nerves 9 to 10 pairs, the lowest 1 or 2 pairs decurved into the basal 

 lobes, the rest curving upwards to anastomose near the margin in 

 an obscure looped nerve ; reticulations few, transverse, prominent when 

 dry ; petiole fleshy, glabrous, 1 to 3 in. long, articulate at the base. 

 Inflorescence lateral from between the petioles, as long as or longer 

 than the leaves, divaricately branched, glabrous ; peduncles stout, 1 to 

 1-5 in. long ; branches long, slender ; flower-clusters umbellate, 6- to 

 8-flowered ; bracts minute, usually soon deciduous ; pedicels capillary, 

 •I'to "2 in. long ; buds ovoid ; flowers green. Calyx pubescent without ; 

 lobes ovate-acute, -075 in. long, ciliate ; scales subulate. Corolla cam- 

 panulate-rotate ; tube short ; lobes oblong-obtuse, 5-nerved, thickened, 

 minutely pubescent above. Corowa-processes nearly globose, fleshy, 

 shorter than the anthers ; point small, appressed to the anthers, 

 acute. Anthers slender above ; appendages acuminate, incurved ; pollen- 

 masses nearly globose, very minute, attached by slender straight 

 caudicles to the minute pollen-carriers. Style-apex pentagonal, top 

 convex. Follicle 1, ventricose, only slightly recurved, 5 to 6 in. long, 

 1-5 in. broad, oblong, very obtuse at tip ; pericarp light green and glossy 

 when fresh, chartaceous when dry, striate longitudinally ; dissepiments 

 fibrous-crustaceous. Seeds flattened, '5 in. long, broadly ovate, with a 

 broad wing ; testa brown, shining ; tip with a -75 in. long white silky 

 coma ; cotyledons broadly ovate, 3 -nerved, "15 in. long ; radicle 

 cylindric, "075 in. long. 



Peeak: at lower camp, Gunong Batu Patch, 3400 ft., Wray 1227; 

 in open jungle at 200 to 300 ft., Kincj's Collector 5761, 7178, 8343 ; at 

 Ipoh, Curtis 3186.— Distrib. Borneo {Teysmann 11578; Motley 625). 



This species comes very uear to T. Wallichii, but is much larger and more 

 glabrous, has more deeply cordate leaves, a larger inflorescence with umbellate instead 

 of racemose flower-clusters, a less beaked corona and longer anther-appendages. 

 Curtis' No. 3186 has one inflorescence with the flower-clusters racemose and the 

 others umbellate, and seems to come between the two species, but in other respects 

 it belongs to this. 



26. Heterostemma, W. & A. 



Twining shrubs. Leaves opposite, often 3- to 5-nerved at the base. 

 Flowers small, in lateral sessile or pedunculate umbellate or racemose 

 cymes. Calyx 5-partite. Corolla campanulate, urceolate or rotate ; 

 lobes triangular, valvate or slightly overlapping to the right. Corona 



