66 R E I N W A R D T I A [VOL. 7

Fig. 1 b. — Lansium kostermansii Prijanto

RfelNWARDTIA
Published by Herbarium Bogoriense, Bogor, Indonesia

Volume 7, P a r t 1, pp. 67 - 69 (1965)

A NEW SPECIES OF COLONA Cav. (Tiliaceae) )

N. WIRAWAN**)

Colona kostermansiana Wirawan, spec. nov. — Fig.

Arbor mediocris, foliis chartaceis ad subcoriaceis lanceolatis usque ad
late ovato-lanceolatis, basi plerumque symmetricis plerumque truncatis vel
obtusis utraque facie stellato scabridis, nerviis lateralibus utrinque 7—11,
margine denticulatis serratis vel duplo sinuato-serratis, capsulis alatis cJidf-
taceis obovoideis.

Tree up to 25 m high and 50 cm diam.; buttresses concave up to 1 m
out, 0.5 m high; bark smooth, lenticellate, paperthin, up to 3' mm thick
brown outside, dark brown inside; living bark pale brown, dark brown after
exposure, 0.7—15 mm thick. Branchlets stellate puberulent, glabrescent.
Stipules early caducous, subulate, asymmetrically auriculate at base, 13 x
2 mm, stellate puberulent. Leaves chartaceous to subcoriaceous lanceolate
to broadly ovate-lanceolate, (3.0-—) 9.3—20.6 (—32.5) x (1.2—) 3.4—7.5
(—13.4) cm, base symmetric, rarely asymmetric, mostly truncate or obtuse,
rarely subcordate, apex acuminate (acumen up to 3.9 cm long), margin
denticulate, serrate or double sinuate-serrate; both surfaces stellate sca-
brous, upper surface glabrescent, the conspicuous, filiform lateral nerves
raised in a groove, secondary nerves obscure; on the lower surface the
midrib and the 7—11 pairs of ascendant lateral nerves strongly prominent,
slender; secondary nerves prominent, parallel; tertiary nerves conspicuous!
areolate. Petiole up to 2 cm long (in young specimens up to 7.5 cm long)
0.2 cm diam., enlarged towards the apex, stellate puberulent.

Flowers unknown. Infructescences axillary and terminal, paniculate,
stellate puberulent, main axis up to 14.0 cm long, lower branches up to
4.7 cm long, pedicel c. 1 cm long, articulate. Capsule obovoid, up to 2.5
cm long, 2.0 cm diam., 3—5-winged, base cuneate, apex emarginate, wings
chartaceous. Seed-part subglobose, c. 1 cm diam.; coccus 0—4 seeded- seeds
ascendant, obconical, c. 4 mm long and 2 mm diam., albuminous; albumen
meally, almost entirely covering the flat, obovoid or oblong cotyledons-
radicle c. 1 mm long, testa coriaceous.

TYPUS: Kuswata 231 (BO).

DISTRIBUTION: Islands of Sumbawa and Rintja (near Komodo Isl.)

*) A revison of Colona has been almost completed
**) Assistant Botanist, Herbarium Bogoriense.

— 67 —



R E I N W A R D T I A [VOL. 7 1965] N. WIRAWAN: A new species of Colona 69

HABITAT: Monsoon forest, 75—800 m alt.

VERNACULAR NAMES: Kaju bantin, kaju kamal or kaju kamal selaki.

Related to C. scabra by its scabrous leaves, but the leaf shape, its
base and its margin and the shape of the fruit are different.

NUSA TESJGGARA (Lesser Sunda Isl.), W. S U M B A, W A, Bangkat Munteh,
alt. 45 m, April, ster., bb. 14008 (BO); Sniga, alt. 400 m, July, ster., de Voogd 1619
(BO); Mt, Seli, near Pernek (c. 12 km S. of Sumbawa Besar), alt. 100 m, May, fr.,
Kuswata 231 (A, BH, BM, BO, CANB, G, K, KEP, L, LAE, NY, PNH, SAR, SING,
US), type; C. S U M B A W A , Mt. Tofo, alt. 75—200 m, June, fr., Soejarto U (BO,
K, L); Dompu, trail Raba Baka-Matuatoi, alt. 75—800 m, June, fr., Soejarto 59
(BO, K, L); R I N T J A I S L . , Sok Nelu, along river, June, fr., Hoogenverf US
(BO).

Fig. .1. Colona kostermansiana Wirawan; a, fruiting branch, Vs X; b, leaf, lower
surface, Vs X ; c, basal part of same, showing stellate scabrous hairs, 1X ; d, seeds
(3y3X) removed from coccus (e, l x ) ; f, cross section through coccus, showing the
central, flat cots (pale), 3% X ; — a,b,c,d,e, after Kuswata 231 (type), f, after

Hoogerwerf 142 (BO).


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