OF THE DIPTEROCARPACEX. 119 
different species varies exceedingly. The following remarks 
must be regarded as preliminary. 
At the base of a leaf-bearing-internode are 10-20 resin- 
ducts in the pith; their diameter is generally small, about 
1-3 times that of ordinary pith-cells. As a rule there are hardly 
any cortical leaf-traces, the lateral and apical leaf-traces separate 
from the central cylinder within the node or close to the node, 
and go obliquely across to the petiole. Burck mentions as 
exceptions to this rule Vatica borneensis and V. faginea. The 
petiole below the blade contains a closed ring of xylem and 
phloém, with 3-10 resin-ducts on the underside. The central 
mass of vascular bundles generally consists of 2 curved bands 
with a few resin-ducts. 
Like the other large genera of this order, Vatica has repre- 
sentatives over the entire area where Dipterocarps are known to 
grow. And like Shorea, Dipterocarpus, and Hopea, the greatest 
development of forms has taken place in the Eastern Peninsula 
of India, where 21 species, and in the Indian Archipelago, where 
18 species are known, the total number being 45. 
Subgenus I. RETINODENDRON, Korth. 
Prolongation of connective short or long. Stigma as a rule 
conical, consisting of three or more long, fleshy, conical lobes. 
Segments of fruiting-calyx equal, shorter than fruit, spreading 
or reflexed. 
A. Ceylon and Western Peninsula. 
1. Varica CHINENSIS, Linn. Mant. (1771) 242; Smith, Pl. Ic. 
(1789) t. 36.—V. Roxburghiana, Blume, Mus. Bot. ii. (1852) 31, 
t.7; Dyer in Hook. f. Fl. Brit. Ind. i. 302; Bedd. Fl. Sylv. 
t. 95; Trimen, Fl. Ceylon, i. 128.—Vateria Roxburghiana, Wight, 
Ill. i. 88.—V. Caddupa, Buchanan, MS. in hb. Mus. Brit. 
Ceylon, moist low country, common near streams, “ Swamp 
Mendora " (Zrimen). Forests along the west coast, from South 
Canara to Travancore. Also in Western Mysore near the crest 
of the Ghats. 
Petioles one-fourth length of blade. Leaves elliptic- and 
oblong-lanceolate, with rounded base; secondary nerves slightly 
curved, 10-12 pairs, tertiary mostly reticulate. Flowers on 
pedicels as long as calyx, arranged in panicles which are mostly 
axillary and shorter than leaf, and the ramifications of which are 
clothed with short stellate hairs. Three deciduous bracteoles 
