118 Materials for a Flora of the Malayan Peninsula. 



Bat. Vol. I, pt. ii, 105. Stigmarosa Jangomas, Lour. Roumea Jangomas^ 

 Spreng. Spina spinarum, Rumph. Amb. Cap. 43, p. 38, xix, t. 1, 2. 



In all the provinces. Distrib. BritisLi ludia, China. Often cul- 

 tivated. 



5. Htdnocarpus, Gserfcner. 



Trees. Leaves alternate, serrate or entire ; transverse venules nu- 

 merous ; stipules deciduous. Floivers solitarj', or in irregular axillary 

 few-flowered racemes or fascicles, monoecious or dioecious. Sepals 5, 

 equal or unequal, imbricate in bud. Petals 5, with a scale opposite 

 each. Fl. c? ; Stamens 5-8 ; anthers reniform, connective broad. Ovary 

 or rudimentary. Fl. 9 ; Stamens as in the c? but without pollen, or 

 reduced to staminodes. Ooary 1-celled ; stigmas 3-6, sessile or subses- 

 sile, spreading, dilated, lobed ; ovules many, on 8-6 parietal placentas. 

 Berry globose, many-seeded, I'ind hard. Seeds many, imbedded in pulp ; 

 testa ci'ustaceous, striate ; albumen oily ; cotyledons very broad, flat. 

 Distrib. Species about 12, tropical Asiatic. 



1. Hybnocarpos castanea, Hf. and Th. Fl. Br. Ind. 1, 197. A glab- 

 rous tree 50 to 60 feet high. Branches and young shorts brown. Leaves 

 coriaceous, narrowly elliptic to oblong, gradually narrowed to the shortly 

 acuminate apex ; the base unequal, rounded at one side, contracted at the 

 other; both surfaces shining and pale brown when dry; nerves 4-9 

 pairs, sub-erect, thin but prominent as are the reticulations ; length 7 

 to 14 in., breadth 2'5 to 4*5 in.; petiole thickened at both ends and bent 

 at the apex, '75 to 1 in. long. Flowers in axillary clusters of 2-6, male 

 and female alike and about equal in number, both on tawny-pubescent 

 pedicels 1"25 in long. Sepals obovate, imbricate, shorter than the petals, 

 the exposed parts tomentose. Petals "6 in. long, linear-oblong, tlie scales 

 linear-obtuse, short. Stamens with thick subulate filaments ; anthers 

 ovate-cordate; rudimentary ovary small, hispid. Female floivers like 

 the male, the stamens barren. Ovary ovoid, acuminate, tomentose ; 

 stigmas sessile; ovules numerous. Fruit on a pedicel 1"25 to ]'54 in. 

 long, globular, 1 in. to 1'5 in. diam., minutely rugose, densely covered 

 with shoi't fulvous tomentum ; stigma persistent, hemispheric. Seeds 

 large, angular. Kurz F. Flora B. Burmah, I, 77. 



Malacca; Perak ; common. Distrib. Burmah. 



2. Hydnocahpus nana, King, n. sp. A shrub or small tree ; the 

 bi'anches and young shoots glabrous or (var. ptihescens) pubescent. Leaves 

 subcoriaceous, from ovate-lanceolate to oblong-lanceolate, inequilateral, 

 subfalcate, shortly acuminate, remotely and minutely mucronate-serrulate, 

 narrowed and unequal at the base, shining and glabrous except the 

 midrib and nerves wliicli, on both surfaces, arc usually more or lcs» 



58 



