Materials for a Flora of tJie Malayan Peninsula. 431 



8. Xerospermum, Blutne. 



Trees. Leaves alternate, exstipulate, abruptly pinnate ; leaflets op- 

 posite, entire. Racevies axillary and terminal. Flowers regular, poly- 

 gamo-dioecious. Sepals 4-5, imbricated in 2 rows. Petals 4-5, equal, 

 spathulate, shorter or but little longer than the sepals, without basal 

 scales. Stamens 8-7, included, inserted within the annular glabrous 

 disc. Ovary sessile, didymous, muricated, 2-celIed ; ovules solitary in 

 each cell, ascending. Style short, thick ; stigma thick, hairy. Fruit 

 1-2-lobed ; the lobes ellipsoidal, diverging, muricated with pyramidal 

 tubercles, indehiscent, glabrous inside. Seeds exarillate ; testa coria- 

 ceous outside, fleshy, pilose, simulating an aril ; emhryo curved ; cotyle- 

 dons very large, thickly fleshy, superposed. — Distrib. 3 or 4 species all 

 Malayan. 



Sepals and petals 5 ; leaflets only a single 



pair ... ... ... ... 1. X. laevigatum. 



Sepals knd petals 4 ; leaflets 1 or 2 pairs. 

 Leaflets 3 to 6 in. long, minutely reticulate ; 

 fruit ellipsoid, muricate, not compressed 2. X. muricatum. 

 Leaflets 4'5 to 8 in. long, transversely reti- 

 culate ; fruit obliquely elliptic, compressed 3. X. Wallicliii. 



1. Xerospermom laevigatum, Radlk. in Sitzb. Bayer. Akad. 

 Math. Phys. 1878, p. 305. A perfectly glabrous tree. Leaves about 

 4 in. long, with only a single pair of coriaceous elliptic-oblong 

 minutely reticulate shortly acuminate leaflets, 225 to 3 in. long and 1 

 to 1'25 in. broad ; their petiolules about '2 or '25 in, long, slender. 

 Racemes terminal and axillary, usually in fascicles of 2 or 3, often with 

 a few branchlets. Flowers about '15 in. in diam,, on slender pedicels. 

 Sepals 5, rotund, glabrous. Petals 5, spathulate, the limb densely 

 woolly, the claw slender. Stamens 5 ; the filaments long and woolly, 

 the anthers small and glabrous. Disc annular, flesljy, glabrous, waved. 

 Ovary tomentose, 2-celled. Fruit with 2 or usually only with I sharply 

 muricate obovate-ellipsoid compressed coccus, 1*35 in. long and '85 in. 

 broad. 



Malacca: Grifilth ( Kew Distrib.), No. 1006/1. Penan g : Curtis, 

 No. 846. Perak : Scoitechini, No. 1019. Pahang : Ridley, No. 2641. 



2. Xerospermum muricatum, Radlk. iiber die Sapind. Holland.- 

 Indiens, 37, 70. A tree 50 to 80 feet high : branches glabrous, dark- 

 coloured when dry. Leaves 4 to 9 in. long, equnlly pinnate : leaflets 2 or 

 4, elliptic-oblong to elliptic, shortly acuminate, the base cuneate ; both 

 surfaces glabrous iiml minutely reticulate : main nerves 7 to 9 pairs, 

 ascending, depressed on the upper, prominent on the lower surface: 



717 



