246 FOXWORTHY. 
Hur, I'lSOr) Darling, Oct. 11)09, in fruit, For. Bur. 1S6G8 Darlituj, N"ov. 1001), in 
fruit. For. Bur, 18086 Darling, Nov. 1909, in flower, Bur. 8ci. 1S12S Foocworthy 
& Ramos, Mar. 11)11, in flower and fruit: Province of Camarines, For. Bur. 10-^92, 
1067'}, 1070G, Curran, For. Bur. 101SS, 10783 Curran, July 190S, in fruit and 
flower. TOLILIA -B"^- '^'<^- ^'^-^^ McGregor. Mkndoro, Whitford VfOJ,, Jan. iOOfi, 
in flower, Whitford i-'/77, Mar. 1906, in fruit. ilARTxnUQrK, For. Bur. 121o7 
' RosenhJuth. Samak, For. Bur. 12S3S BosenhJuih. Leyte, For. Bur. 1162S ^yhit' 
ford, Mar. 1909, in fruit. Mindanao, District of Davao, Warburg I'l'/Sl (type 
of D. irarhurgii), For. Bur. lloCQ Whitford, Feb. 1909, flowers and young fruit: ' 
Di^^trict of Zauibouii-a, For. Bur. 9396, Whitford d- Hutchinson, Feb. 1908, fruit, 
For. Bur. 12352 Hutchinson, May 1908, flower. 
The flowers and young fruit show a five-ridged calyx. As the fruit matures, 
the hollows fill out and the fruit becomes more nearly spherical till finally the 
only remaining trace of the ridges is found in small, rounded protuberances, on 
the upper part of the fruit, alternating with the calyx lobes. 
The common native name for this species is hagachac. It is commonly found 
in those regions which have a comparativelj" even rainfall. It occurs on flat 
lands and low hills. It is gregarious in habit and frequently makes up the 
greater part of the stand where it occurs. 
Distribution: damp forests in the upper pai-t of tlie Assam valley; Chittagong 
hills; Arracan; lower Pegu, hills between the rivers Sitang and Salween; Anda-^ 
man Islands; Sumatra; Bangka; the Philippines. 
2. Dipterocarpus affinis Brandis Journ. Linn. Soo. Bot. 31 (1895) 31. 
Plate XXXV. ' ' 
Branches and petioles stellate-tonientose. Leaves submembranaceous, 
oblanceolate, repand, blade 27 to 33 cm long; petioles 6 to 7 em. 
Secondary nerves 24 to 28 pairs, straight^, bent near margin and terminat- 
ing in reticulate intra-marginal veins. Tertiary nerves parallel and 
reticulate. Stipules linear, tomentoee, twice as long as the petioles. 
Flowers large, short-pedicellate. Calyx-tube thickly coriaceous, tur- 
binate, smooth and glabrous, the lobes 2 linear, 3 short, reflexed. Ovary, 
stylopodium, and lower part of style pilose. Pubescence the same as that 
of D. pilosus, Braudis says that the difference between the two species 
consists in the narrow membranaceous leaves and the glabrous calyx of 
D. affinis^ the smaller segments in flower reflexed, and not erect. 
A number of specimens in our herbarium seem to fit this description 
and have fi-uit with them, which shows the shoi*t calyx wings slightly 
reflexed, but in no case is the fruit collected with the hcrbai-ium material 
actually attached to it, tlie fruits seeming to have been picked up h'on^ 
the gi-ound. This leaves the suspicion that the membranaceous texture 
of the leaves may be due to their being young or seedling leaves, possibly 
inmiature forms of D. pilosus. The differences in the reflexed or erect 
calyx lobes are also very sliglit and might couceiveably he fortuitous or 
due to drying. 
I have checked Brandis' observation of the very close resemblance an 
possible identity of /;. ehngatm Korth. and D. affims, and think it 
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