78 SIR DIETRICH BRANDIS—AN ENUMERATION 
4. SHOREA STENOPTERA, Burch, Minjak Tungkawang, (1886) 
p. 11, et in Ann. Jard. Buitenz. vi. (1887) 209, t. 21. 
Borneo. 
Stipules large, semtamplexicaul, caducous. Ovary glabrous; 
style as long as ovary, thickened at apex. Stylopodium not 
conspicuous. Fruit nearly 3 inches long, velutinous. Cotyledons 
fleshy, nearly equal, each bifid to the base, that is to the point 
where the hypocotyl is attached. Hypocoty] in the vertical axis 
of embryo, two-thirds the length of embryo. 
5. S. APTERA, Burck in Ann. Jard. Buitenz. vi. (1887) 210, 
t. 22. 
Borneo. 
Stipules small, caducous. Flowers in unilateral spikes. Ovary 
narrowed into short stylopodium, both hairy; style filiform. 
Fruit 14 in. long. Structure of embryo same as in S. stenoptera ; 
petioles of cotyledons distinct; these with hypocotyl nearly as 
long as seed. 
6. S. MARTINTANA, Scheffer in Nat. Tidschr. Nederl. Ind. xxxii. 
(1871) 408 ; Burck in Ann. Jard. Buitenz. vi. (1887) 208, t. 29. 
fig. 2. 
Borneo. 
Stipules large, persistent, leaving annular scars, from a cordate 
base triangular, obtuse. 
7. S. SCABERRIMA, Burch, Minjak Tengk. (1886) 22, et in Ann. 
Jard. Buitenz. vi. (1887) 208.—[ Not seen. ] 
Borneo. 
The seeds of the last four species as well as of S. Pinanga, 
Scheff., and Gysbertstana, Burck, both of section Pinanga, and of 
Jsoptera borneensis, Scheff., yield the Tangkawang fat. Besides 
these trees of the Dipterocarp family, Diploknema sebifera, Pierre, 
and perhaps other Sapotaceous trees in Borneo, yield fat, which 
is exported under the name of Minjak Tangkawang (Burck on 
Minjak Tangkawang, communicated in Pharmaceut. Soc. Journal, 
1887, p. 901). In other species of Shorea (S. robusta, obtusa) the 
cells of the cotyledons are filled with starch. It is for further 
research, whether in the seeds of all species of this section and of 
the section Pinanga, fat-oil is the predominant non-nitrogenous 
stored substance. 
