Heteroblemma clemensiae 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 : 235-237

5. Heteroblemma clemensiae Cámara-Leret , sp. nov. — Fig. 2e

Innovationes hirsutae, folii lamina basi acuta, apice acuminato, 7-plinervata infra glabra, vena submarginali conspicua,nervis tertiariis conspicuis,fructus glabri, pedicellis glabris, calycis reliquiae conspicuae. — Type: Clemens 3829 (holo K; L, not found) .

Innovations hirsute. Branchlets striate, glabrous. Petioles terete, 1–6.5 cm by 3 mm, glabrous. Leaves oblong to lanceolate, 13–23 by 5–7 cm, 2.5–3.3 times as long as wide, 3.5–15 times as long as the petioles, base acute to obtuse, margin entire, glabrous, apex acuminate, pergamentaceous (i.s.), underneath glabrous, 7-plinerved, basal acrodromous, first pair of primaries 3–5 mm away from the base, distalmost primaries 4–5.5 cm away from the preceding pair, submarginal vein conspicuous, secondary nerves conspicuous, 15–20 pairs, angle of divergence acute wide, tertiary nerves conspicuous. Bracts 2 mm long. Pedicels up to 20 cm long, glabrous. Flowers born in dense fascicles on old wood. Buds c. 12 by 7 mm. Hypanthium campanulate, c. 8 by 7 mm, very finely red-papillose. Petals c. 5 by 5 mm, red-purple (i.s.). Filaments c. 2 mm long; anther c. 1.2 mm long, dorsal spur adaxially directed, c. 0.5 mm long, lateral appendages triangular, c. 1 mm long. Style c. 7 mm long, white papillose in lower part. Fruits 8.5–10 by 7–9 mm, smooth, glabrous, calyx teeth persistent, c. 2 mm long; seeds less than 0.5 mm, yellow (i.s.).

Distribution — Endemic of Vietnam,Tourane (now Da Nang).

Habitat — On large forest tree.

Collector’s notes — Liana. Flowers in fascicles cauline, near the ground.

Note — Only known from the type. The specimen with flowers in L used by JRN for her 1977 description could not be found again .

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.