OF THE DIPTEROCARPACEZ, 137 
V. VATERIEJE. 
14. SrEMONOPORUS, Tw. 
(Including Künckelia, Heim, Vesquella, Heim, and 
Sunapteopsis, Heim.) 
Leaves coriaceous; midrib and secondary nerves very pro- 
fninent; tertiary conspicuous, parallel and reticulate; stipules 
persistent in S. Moonii. Flowers pedicellate ; the pedicels often 
bracteolate, solitary or in few-flowered axillary clusters or 
racemes. Sepals generally slightly imbricate. Stamens 15; 
anthers oblong or linear, mostly hispid, with short stiff hairs, 
the outer valves longer than the inner, opening at the apex; 
appendix of connective very short or wanting (Engler, Nat. 
Pflanzenfam. iii. 6. Fig. 127 F, G). Ovary superior, 3-celled, 
generally pubescent, in most species articulate with long filiform 
style ; stigma minute ; nostylopodium. Fruiting-calyx spreading 
or reflexed, as a rule much shorter than fruit. 
The structure of the seed is not uniform. Neglecting minor 
differences, three types may be distinguished. In S. affinis the 
cotyledons are thick, fleshy, and divided into numerous lobes. 
A second type is represented by S. Wightii. The cotyledons 
are thick, fleshy, the outer slightly concave, smooth on the outside, 
on the inside deeply and irregularly furrowed. The inner is 
divided into three or four lobes. A similar structure have two 
separate cotyledons preserved in the Kew Museum, and marked 
S. acuminatus. | S. canaliculatus, Thw., also belongs to this type, 
as well as, judging by Heim’s description, S. reticulatus, Thw. 
(Kiinckelia reticulata, Heim). The third type consists of the albu- 
minous seeds of S. acuminatus, Bedd., and S. oblongifolius, Thw. 
At the base of the fruit-cavity, attached to the inner surface of 
the pericarp, is a remarkable excrescence (Heim's * cupule cha- 
lazique"), a thin fleshy cup, the rim generally divided into 
numerous lobes. This excrescence is known in the following 
species: S. acuminatus, Bedd., S. canaliculatus, Thw., S. oblongi- 
Solius, Thw. And it is not unlikely that the fibrous mass which 
is found to intrude between the cotyledons of S. Wightii and 
reticulatus, Thw., belongs to a similar exerescence. The morpho- 
logical character of this remarkable structure, to which Heim has 
justly drawn prominent attention, can only be determined by the 
examination of ripe and unripe seeds, fresh or preserved in aleohol. 
