xi, c, 2 Merrill: Notes on the Flora of Borneo 99 



neis, chartaceis, integris vel obscure crenulatis, prominente acu- 

 minatis, basi acutis, nervis utrinque 5 ad 8, prominentibus ; 

 inflorescentiis racemosis, $ et $ quam foliis multo longioribus; 

 floribus numerosis, 4-meris, sepalis glabris; fructibus circiter 1 

 cm longis, dense tomentosis. 



A dioecious tree, glabrous except the young branchlets, very 

 young leaves, and inflorescences. Branches slender, terete, us- 

 ually pale-gray, the young branchlets minutely appressed 

 cinereous-puberulent. Leaves oblong, entire or very obscurely 

 crenulate, brown and slightly shining when dry, 8 to 17 cm long, 

 3 to 6.5 cm wide, base acute, apex rather slenderly and prom- 

 inently acuminate, the acumen 1 to 1.5 cm long, usually apiculate, 

 both surfaces quite glabrous or the midrib and lateral nerves 

 beneath minutely and obscurely puberulent; lateral nerves 5 to 

 8 on each side of the midrib, prominent, curved, anastomosing, 

 the reticulations very slender; petioles usually about 1 cm long; 

 stipules linear-acicular, 3 to 4 mm long. Staminate and pistillate 

 racemes in the uppermost axil, sometimes in lower axils, usually 

 simple, rarely with a single elongated branch from the lower 

 part, up to 30 cm in length, both much exceeding the leaves in 

 anthesis, appressed-pubescent with pale hairs. Flowers num- 

 erous, few in the axil of each bract, the pedicels about 1 mm 

 long, pubescent, the acuminate bracts about as long as the pedi- 

 cels. Flowers all 4-merous. Sepals broadly ovate to elliptic 

 ovate, membranaceous, glabrous, rounded, of the staminate 

 flowers 2.5 to 3 mm long, of the pistillate ones about 2 mm long. 

 Scales densely pale-pubescent, about 1.5 mm long. Rudimentary 

 ovary of the staminate flowers oblong, densely pubescent, shortly 

 stipitate, about 2 mm long; filaments slightly pubescent below, 

 about 3 mm long, those of the pistillate flowers about 1 mm in 

 length. Ovary globose, densely pubescent, tipped by three short 

 glabrous styles. Fruit about 1 cm long, oblong, usually some- 

 what inequilateral, with three rounded angles, densely pale- 

 tomentose. Seeds ellipsoid, about 5 mm long. 



. Sarawak, Baram District, Marudi, Hose S2S (type) ; Lembang, Hose 7*7; 

 various localities in the vicinity of Kuching, Native collector 6U2, 6U3, 11U3, 

 11U, 1U5, 1152, 1168, 1826, 1908 (Bur. Sci.). 



This small genus has previously not been reported from Borneo, the 

 known species being Osmelia paniculata Warb. (0. gardneri Thw.) of 

 Ceylon, O. maingayi King of the Malay Peninsula, O. celebica Koord. of 

 Celebes and Mindanao, and three Philippine species, O. conferta Benth., 

 O. philippinensis Benth., and O. su!brotundifolia Elm. The species above 

 described appears to be most closely allied to Osmelia maingayi King, from 

 which it differs in its usually simple, elongated racemes, its glabrous leaves, 

 and its entirely glabrous sepals. 



