Dissochaeta celebica Blume, Mus. Bot. 1(3): 36. 1849.

Kartonegoro, Abdulrokhman, Veldkamp, Jan Frits, Hovenkamp, Peter & Welzen, Peter van, 2018, A revision of Dissochaeta (Melastomataceae, Dissochaeteae), PhytoKeys 107, pp. 1-178 : 1

13. Dissochaeta celebica Blume, Mus. Bot. 1(3): 36. 1849.

Dissochaeta subviridis Elmer, Leafl. Philipp. Bot. 4: 1193. 1911. Type: Philippines. Mindanao: Davao Del Sur, District of Davao, Todaya (Mt. Apo), 3500 ft., May 1909, A.D.E. Elmer 10577 (lectotype, designated here: GH [GH00072246, image seen]!; isolectotypes: BISH [BISH1003278, image seen]!, BM [BM000944483]!, BO [BO1751865]!, CAS [CAS0033376, image seen]!, E [E00680851]!, HBG [HBG514874, image seen]!, K [K000859610]!, L [L0537286]!, MO [MO-313697, image seen]!, NY [NY00228566, image seen]!, P [P02274813, image seen]!, U [U0004006]!, US [US00120533, image seen]!).

Neodissochaeta celebica (Blume) Bakh. f., Contr. Melastom.: 141. 1943.

Type.

Indonesia. North Sulawesi: Res. Menado, Tomohon, G. Mahawoe, Feb 1841, E.A. Forsten 305 (lectotype, designated here: L [L0537287]!; isolectotype: L [L0625953]!).

Description.

Climbing up to 8 m in height. Branchlets terete, ca. 3 mm in diameter, glabrescent to sparsely covered with brown stellate hairs, more densely so in young parts; nodes swollen, with an interpetiolar line; internodes 5.7-6 cm long. Leaves: petioles terete, 1-1.2 cm long, densely stellate-furfuraceous; blades ovate-elliptic, 8.4-10 × 3.3-4.5 cm, membranous, base rounded to nearly emarginate, margin entire, apex acuminate, tip ca. 0.5 cm long; nervation with 1 pair of lateral nerves and 1 pair of intramarginal nerves; adaxially glabrous, abaxially densely covered with brown stellate-furfuraceous hairs. Inflorescences terminal or in the upper leaf axils, up to 30 cm long, many-flowered; main axis densely covered with brown stellate-furfuraceous hairs; primary axes up to 28 cm long with 5 or 6 nodes, secondary axes up to 6 cm long with 2 or 3 nodes, tertiary axes 1.2-2 cm long with 1 or 2 nodes; bracts lanceolate, 8-11 mm long, densely stellate-furfuraceous, caducous; bracteoles linear, 3-5 mm long, densely stellate-furfuraceous, caducous; pedicels covered with brown stellate hairs, 1-2 mm long in central flowers, ca. 0.5 mm long in lateral flowers or latter subsessile. Hypanthium campanulate funneliform, 3-4 × 1-1.5 mm, densely covered with brown stellate-furfuraceous hairs; calyx lobes truncate with small triangular tips, 1-3 mm long, glabrous, purple inside; petal bud conical, 2-3.5 mm long; mature petals obovate, 3-4 × ca. 2 mm long, reflexed, base clawed, apex rounded, dark purple, glabrous. Stamens 4, equal, alternipetalous; filaments glabrous, curved sideways, 4-5 mm long, bent at the end, white pinkish; anthers oblong, curved, thecae 3-4 mm long, yellowish-white, pedoconnective ca. 1 mm long, basal crest triangular or rounded, ca. 0.5 mm long, lateral appendages filiform, 2-3 mm long, paired, with irregular margin, brownish. Ovary ¾ of hypanthium in length, apex pubescent; style glabrous, 5-6 mm long, curved at the end, purple; stigma minute; extra-ovarial chambers 4, shallow. Fruits subglobose or ovoid, 5-8 × 3-5 mm long, densely covered with stellate hairs and becoming glabrous when mature, calyx lobes persistent, 1-3 mm long. Seeds numerous, ca. 0.5 mm long.

Distribution.

Sulawesi and Philippines (Mindanao).

Note.

See under D. biligulata .