Key to genera based on flowering specimens 1. Herbaceous, parasitic vine without leaves.......... Cassytha 1a. Trees or shrubs with regular leaves................................. 2 2. Stamens 4-locular ................................................. Ocotea 2a. Stamens 2-locular, rarely 1-locular ................................. 3 3. Flowers with 4 tepals ..................................................... 4 3a. Flowers with 6 tepals ..................................................... 5 4. Leaves alternate ................................................ Potameia 4a. Leaves opposite.................................... Beilschmiedia p.p. 5. Stamens 3 or 6; leaves opposite ................. Aspidostemon 5a. Stamens 9; leaves alternate, rarely opposite; if opposite, tertiary venation raised................................................... 6 6. Receptacle tube deep, the ovary enclosed in the tube ....... ...................................................................... Cryptocarya 6a. Receptacle tube very short, the ovary fully exposed in the flower ................................................... Beilschmiedia

Published as part of Werff, Henk van der, 2017, The genera of Lauraceae in Madagascar with nomenclatural novelties in Cryptocarya, pp. 323-328 in Candollea 72 (2) on pages 324-325, DOI: 10.15553/c2017v722a8, http://zenodo.org/record/5684462