Lasianthus congesticymus H.Zhu

Zhu, H., Roos, M. C. & Ridsdale, C. E., 2012, A taxonomic revision of the Malesian species of Lasianthus (Rubiaceae), Blumea 57 (1), pp. 1-102 : 30

publication ID	https://doi.org/10.3767/000651912X652012
persistent identifier	https://treatment.plazi.org/id/1664BC60-3C50-0D1A-FFEB-4EE4FD317348
treatment provided by	Felipe
scientific name	Lasianthus congesticymus H.Zhu
status

Treatment

27. Lasianthus congesticymus H.Zhu View in CoL

Lasianthus congesticymus H.Zhu (2001b) 124, f. 1. —

Type: Larsen et al. 45955 (holo AAU), Thailand, Nakhon Srithamathat, Khao Luang,evergreen montane forest, 700–1200 m alt .

Shrubs; branchlets compressed when young, later terete,brown, subglabrous. Leaves: blades elliptic,12–19 by 3.5–6.5 cm, chartaceous, more or less brown, glabrous, apex acuminate or subcaudate, base cuneate or rounded, slightly unequal sides, midrib conspicuous above, prominent beneath, nerves 6 –7 pairs, conspicuous above, slightly prominent beneath, nervules conspicuous on both surfaces, subparallel; petioles 8 –10 mm long, subglabrous. Stipules triangular, acute at apex, c. 1.5 mm long. Cymes pedunculate, strongly reduced; bracts absent. Flowers subsessile; calyx 2 mm long, limb more or less constricted at the base, lobes 4, triangular, c. 1 mm long, sparsely puberulous external surface; corolla 10 mm long, puberulous on upper part outside, lobes 5, with pilose outside. Drupes ellipsoid, 5 mm long, rugose, narrowed at the base, crowned by the persistent calyx limb; pyrenes 4, very furrowed on the abaxial face.

Distribution — Thailand (Peninsular) and Malaysia (Borneo).