Vegetative key to the families
Vegetative Key Vegetative key to the families
EPIPHYTES on trees or rocks
Leaves with reticulate venation, or the venation obscure
Leaves opposite or whorled
Leaves sometimes whorled, succulent, c. 3 cm long or less Piperaceae
Leaves opposite; one leaf often smaller than the other in the pair; the larger 4–7 cm long Gesneriaceae