66 SIR DIETRICH BRANDIS—AN ENUMERATION 
lobed. Style short, glabrous; stigma minute.  Pericarp thin, 
chartaceous. Both cotyledons thick, fleshy, bifid to base. 
Hypocotyl as long as embryo, above the tip with a few hairs, 
lying on the outside of the embryo between the lobes of the 
radicular cotyledon, which is slightly concave, somewhat em- 
bracing the other, smaller cotyledon, between the lobes of which 
the placenta and remains of dissepiments are intruded. Cells of 
cotyledons filled with starch and a little fat. 
31. Horra Recoret, Lanessan, Pl. Utiles Col. Fr. (1886) 301; 
Pierre, Fl. For. Cochinch. fase. 16 (1891), t. 247. 
Province of Bienhoa in Cochinchina, where it grows gregarious, 
covering entire mountain-sides. 
Tertiary nerves parallel but distant, Joined by closely reti- 
culate veins. 10 monadelphous stamens; anthers without ap- 
pendage. Upper rim of ovary continued into fleshy cylindric 
stylopodium, which encloses the short style. Structure of 
embryo like that of JT. Curtisii. Cells of cotyledons filled with 
Starch. 
Sect. III. DRayoBALANOIDES. 
Secondary nerves numerous, approximate, not prominent, and 
often obscure. Stamens 15.  Stylopodium in some species 
wanting, indieated by a hairy ring. 
The species of this section resemble each other much in habit. 
The flowers are always in unilateral racemes, which are arranged 
in racemose, rarely compound panicles ; the fruit is always in its 
lower portion, and sometimes the entire fruit, tightly enclosed 
by the indurated and thickened base of calyx-segments. The 
existence or not of a stylopodium furnishes an excellent character. 
King speaks of an hourglass-shaped ovary. The ovary-cells, 
however, only occupy the lower half of the hourglass (Plate II. 
fig. 10), the upper portion being a fleshy stylopodium. Where 
the stylopodium is small or wanting, as in Hopea Mengarawan 
and allied species, its place is indicated by a hairy ring at base of 
style. In some species the existence of a stylopodium can be 
recognized in fruiting specimens (H. Beccariana, Burck; H. Dyeri, 
Heim; H. Treubii, * plate-forme circulaire, munie d'un apicule,” 
Heim). Of the 15 species of this section, I am disposed to think 
that H. intermedia, King, H. borneensis, Heim, H. sarawakensis, 
Heim, and perhaps also H. Vesquei, Heim, will disappear as 
more abundant material for examination becomes available. 
