acalymmate

As a noun terms

is .

As an adjective acalymmate is

(palynology) 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.

Calymma is a related term of acalymmate.

As an adjective acalymmate is

(palynology) 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.

In palynology|lang=en terms the difference between sexine and acalymmate

is that sexine is (palynology) the outer part of the exine, the outer covering of a pollen grain while acalymmate is (palynology) 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.

As a noun sexine

is (palynology) the outer part of the exine, the outer covering of a pollen grain.

As an adjective acalymmate is

(palynology) 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.

As a noun polyad

is a group consisting of an indeterminate number of things or people.

As an adjective acalymmate is

(palynology) 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.

As a noun tetrad

is a group of four things.

As an adjective acalymmate is

(palynology) 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.