Decarydendron

Lorence, David H. & Razafimandimbison, Sylvain G., 2002, A new species of Decarydendron (Monimiaceae) from Madagascar, Adansonia (3) 24 (1), pp. 107-111 : 108

Key to Decarydendron

1. Leaves with lamina glabrous on both surfaces, 3-10 × 0.8-5.1 cm, margins entire or with 1-4 pairs of teeth ...................................................................................................................................... D. ranomafanensis

1’. Leaves with lamina abaxially hirsutulous, strigillose, or velutinous, rarely glabrate, adaxially glabrate or sparsely puberulent, 8-20 × 3.5-13 cm, margins with 15-50 pairs of teeth. .............................................. 2

2. Leaves with lamina abaxially velutinous; petioles 3-5 mm long; tepals of staminate flowers crenulate .......... .................................................................................................................................................. D. perrieri

2’. Leaves with lamina abaxially hirsutulous or strigillose, rarely glabrate; petioles 10-20 mm long; tepals of staminate flowers entire ............................................................................................................................ 3

3. Laminar teeth 2-4 mm long; staminate flowers with 40-60 stamens .......................................... D. helenae

3’. Laminar teeth 0.5 mm long; staminate flowers with 16-30 stamens .............................................. D. lamii