Key for Trymatococcus Poepp. & Endl.

1 Branchlets appressed-puberulous; stipules ca. 0.2 cm long; tertiary venation reticulate.
Trymatococcus oligandrus
1'Branchlets brown-hirtellous to -velutinous; stipules 0.3-0.4 cm long; tertiary venation usually partly scalariform.
Trymatococcus paraensis