Dissochaeta celebica Blume var. longilobata Karton., 2018

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

13.2. Dissochaeta celebica Blume var. longilobata Karton. var. nov. Fig. 10 , Map 9

Type.

Indonesia. Central Sulawesi: Mount Roreka Timbu, 2000 m elev., 8 May 1979, M.M.J. van Balgooy 3205 (holotype: BO!; isotypes: K!, L [L0652533]!).

Description.

Hypanthium campanulate, 3-4 × 1-1.5 mm long, densely covered with brown stellate-furfuraceous hairs; calyx lobes slightly triangular, 2-3 mm long, densely brown stellate-furfuraceous; petal bud conical, 3-3.5 mm long. Fruits subglobose, 6-8 × 4-5 mm, densely covered with stellate hairs and becoming glabrous when mature, slightly 8-lined; calyx lobes persistent, 2-3 mm long.

Distribution.

Sulawesi (Central Sulawesi).

Ecology and habitat.

Montane forest dominated by Agathis at ca. 2000 m elevation.

Note.

This variety is known only from the type and differs from the var. celebicca by its long triangular calyx lobes (2-3 mm long), persistent in fruit. The length of the calyx lobes is often similar to that of D. schumannii from New Guinea, though they are usually caducous in that species.

Figures

Map 9. Distribution of D. celebica var. longilobata (●).

Figure 10. Dissochaeta celebica var. longilobata a habit b hypanthium c open flower d stamens e fruit. [drawn from Van Balgooy 3205 (L).