Meaning of acalymmate | Babel Free

Definitions

Forming clusters of pollen grains (usually tetrads or polyads) in which the sexines of the respective grains do not merge to form a continuous sheath.

not-comparable

Examples

“When loosely associated, each tetrad retains most of its outer exine layer, leading to calymmate tetrads, but an acalymmate massula (since the exine is not continuous around each massula […]).”

CEFR level