Lijndenia species

Stone, R. Douglas, 2017, Revised treatment of the genus Lijndenia (Melastomataceae, Olisbeoideae) in Madagascar, Candollea 72 (1), pp. 67-86 : 70

Key to the Lijndenia species of Madagascar

1. Leaves distinctly 3-nerved (the lateral pair of nerves clearly visible at least on the lower surface of the blade)............ 2

1a. Leaves apparently 1-nerved (only the midnerve conspicuous, the lateral pair of nerves intramarginal and faintly visible to ± invisible) ...................................................... 4

2. Young branchlets 4-angled and conspicuously winged ..... .......................................................... 5. L. melastomoides

2a. Young branchlets terete...................................................3

3. Cymes borne below the leaves, in few-flowered fascicles at the defoliated nodes of older branchlets (not lower down on the trunk); peduncles ± absent (the cymes thus subsessile) or very short (up to c. 1 mm); leaf-blades mostly obovate to oblanceolate, 5-9.5(-13) X 2.5-4.5(-6) cm, the apex rounded to retuse or broadly and vaguely obtuseacuminate............................................... 2. L. danguyana

3a. Cymes borne in many-flowered fascicles on the trunk; peduncles 5-15 mm; leaf-blades elliptic to ellipticlanceolate, up to 5.5 X 2 cm, the apex distinctly obtuseacuminate.................................................. 7. L. ramiflora