Heteroblemma coronatum Cámara-Leret, 2013

Cámara-Leret, R., Ridder-Numan, J. W. A. & Veldkamp, J. F., 2013, Revision of Heteroblemma gen. nov. (Dissochaeteae - Melastomataceae) from Malesia and Vietnam, Blumea 58 (3), pp. 229-240 : 237

7. Heteroblemma coronatum Cámara-Leret , sp. nov. — Fig. 2b , 3

Innovationes glabrae, petioli alati, folii lamina linearilanceolata 5–6 cm lata 5–6-plo longa quam lata basi decurrenti infra hirsutulla 3-plinerva venatione suprabasaliter acrodroma nervorum parimariorum pare prima 50 mm laminae basi distanti,hypanthium 3.5–4 mm longum dentibus conspicuis 1 mm longis, fructus 5–6 mm longi 5 mm lati calycis reliquiae conspicuae. — Type: SAR 25080 (Banyeng ak Nudong) (holo L, sh. 107500;A,K, L, SAN,SAR,SING ) .

Innovations glabrous. Branchlets absent. Petioles narrowly winged, 6–16 cm by 3 mm, hirsutulous. Leaves linear-lanceolate, 28–33 by 5–6 cm, 5–6 times as long as wide, 2–4 times as long as the petioles, base decurrent, margin entire, ciliolate, pergamentaceous (i.s.), underneath hirsutulous, 3-plinerved, suprabasal acrodromous, first pair of primaries 50 mm away from the base, distalmost primaries 50 mm away from the preceding pair (the submarginal vein), submarginal vein conspicuous, secondary nerves conspicuous, 20– 25 pairs, angle of divergence acute wide, tertiary nerves conspicuous. Bracts 1 mm long. Flowers absent, born on fascicles on old wood. Hypanthium urceolate to campanulate, 4 mm long, glabrous. Sepals 1 mm long, teeth conspicuous, 1 mm long. Fruit 5–6 by 5 mm, glabrous, red, calyx teeth persistent, crowning the fruit conspicuously, prolonged by a caducous slender hair, pedicels in fruit 25–35 mm long, glabrous; inside filled with jelly.

Distribution -– Endemic of Sarawak: 4th Div., Lambir National Park.

Habitat — Nearby river.

Collector’s notes — Climbing 3 m high in a tree. Fruits red.

Notes — Named after its distinctive crowned fruits, adorned by very conspicuous calyx remnants.

Only known from the type.

Figures

Fig. 2 Examples of some hypanthia. a. Heteroblemma barbatum (BW 8404 (Vink)); b. H. capillipes (S. 36279 (Ilias Paie)); c. H. serpens (Ridley July 1893); d. H. coronatum (SAR 25080 (Banyeng ak Nudong)); e. H. clemensiae (Clemens 3829); f. H. kemulense (Endert 4330); g. H. loratum (Haviland 1682); h. H. flagellatum (Haviland 68); i. Heteroblemma alternifolium (Soedarsono 378). — Scale bar = 1 mm.

Fig. 3 Heteroblemma coronatum Cámara-Leret. a. Habit; b. first pair of primary nerves; c. infructescences (all: SAR 25080 (Banyeng ak Nudong)). — Scale bars: a, c = 1 cm; b = 1 mm.