Simply click on the words below, and follow the link to the glossary term

Radicle

Ramiform pit

Raphe

Raphide

Ray, heterocellular

Ray, homocellular

Ray initial

Ray, multiseriate

Ray, pith

Ray tracheid

Ray, uniseriate

Ray, vascular

 

Reaction wood

Resin duct or canal

Reticulate cell wall thickening

Reticulate venation

Rhexigenous

Rhizodermis (see epidermis)

Rhytidome

Ribosome

Ring-porous wood

Root cap

Root, contractile

Root hair