Set with prickles; prickly, like a hedgehog; bristled; as, an echinated pericarp.

a. (L. echinus, a hedgehog) set with prickles; prickly, like a hedgehog; having sharp points.

bearing stiff, stout, prickly hairs.

Sculpture of pollen and spores consisting of echinae (spines).

(adj.) (sing. echina, pl. echinae) ( Wodehouse, 1928) Describing pollen and spores with an ornamentation comprising spines longer than 1µm. Comment: (Echinate should only be used in the adjectival form.) ( Erdtman (1952) recommended the term spinose, but in his usage spines were defined as longer than 3µm and smaller features as spinules (adj. spinulose). See also: microechinate, spine, spinule.

of a spore, spiny.

Embryo