Tables and diagrams
Glochidium structure
Opuntia glochidium
The large panel at left indicates the position of glochids in an areole. The central panel shows a single glochid with barbs pointing towards its base. At right are enlarged views of a bundle, the shaft surface and the base. [Robinson 1974]
The drawing is a schematic enlargement without a measurement scale. Base shape and the arrangement of surface cells are not identical in all opuntioids.
Enlarge plate ↗