Glossary Details – Lecythidaceae

Glossary Details:

Title: A bipinnately compound leaf. Photo by C. Gracie

Description: The bipinnately compound leaf of Samanea saman based on Mori & Gracie 27152 from Saba, Netherlands Antilles. The petiole plus the primary rachis equals the leafstalk. Note that both the primary and scondary leaflets are placed opposite to one another along the primary and secondary rachises. Other bipinnate leaves of other species may have them placed alternately.

Term:

Rachis (alt. spelling = rhachis)

Definition:

The axis of a compound leaf (excluding the petiole) or of an inflorescence (excluding the peduncle); in legumes, that part of the leaf axis bearing leaflets of any order.