Term:

Percurrent tertiary venation

Definition:

Tertiaries from the opposite secondaries joining (Hickey, 1973)

Notes:

In Neotropical Lecythidaceae only the genus Allantoma as defined by Huang et al. (in press) has clearly defined percurrent tertiary venation. This type of venations is present in other genera but is not as evident as it is in Allantoma.