R E I N W A R D T I A

Published by Herbarium Bogoriense, Kebun Raya Indonesia
Volume 5, Part 3, p. 267

A NEW SPECIES OF ANISOPTERA (Dipterocarpaceae) II

ANWARI DILMY

ANISOPTERA KOSTERMANSIANA Dilmy

Some new material of Anisoptera kostermansiana Dilmy, described by
the present author in Reinwardtia 3: 347. 1956, was put at his disposal by
the kindness of Mr. J. S. Womersley, Chief, Division of Botany at Lae, T.N.G.

Anisoptera kostermansiana Dilmy, Reinw. 3: 347. 1956. — Anisoptera sp. (2)
van Slooten, Reinw. 2: 14. 1952.

From A. polyandra Bl. distinguishable at once by the character of the
lower leaf surface, which is densely covered with minute, sessile, entire
orbicular scales with a membranous margin; they are darker and somewhat
depressed in the centre. To these scales the lower leaf surfaces ows its
yellowish aspect. In A. polyandra the leaves are quite glabrous.

The specimen bb. 22351, mentioned by Van Slooten under the "spec-
imina inquiranda" agrees perfectly with our species. Van Slooten suggested
that perhaps it might be conspecific with A. aurea Foxw. from the Philippi-
nes but this species, of which the following specimens are at Bogor, bb.
10700, 8985 and 28359 differ at first sight from A. kostermansiana by the
smaller leaves which are ferruginous underneath, with thinner nerves.

A. marginata Korth., to which Van Slooten also refers, has still smaller
leaves than A. aurea, and the wings of the fruit are much narrower than in
A. kostermansiana.

SPECIMENS EXAMINED:

NEW GUINEA. W. N e w G u i n e a Bomberai Peninsula, Taire, Fakfak, primary
forest on dry hilly ground on clay, ster., bb. 22351 (BO).

T e r i t o r y of N. G., lower Waria Rd., Red Hill, July, fr., Womersley, N.G.F.
3228 (LAE) ; Buna hinterland, about 7 miles North of Embi Lakes, March, fr., L. S.
Smith, N.G.F. 1266 (LAE) ; Milne Bay-area, about ½ mile north of Waigani planta-
tion on an ironstone gravel-capped ridge in comparatively open forest, ster., L. S.
Smith, N.G.F _ 1297 (LAE) ; Cape Nelson, near Kasiawa village, Tufi subdistrict,
secondary forest on edge of grassland, Aug., fl., Saunders i6 (LAE) ; Morobe Distr.,
June, fr., Womersley, NiG.F. 3147 (LAE) ; Oomsis Creek, ster., White, N.G.F. 9557,
9558, 9559 (BO, LAE); Yaka, W. Lae, ster., Womersley, N.G.F. 3221 (LAE).

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