cryptogam

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun formerly recognized taxonomic group including all flowerless and seedless plants that reproduce by means of spores: ferns, mosses, algae, fungi

From Ancient Greek κρυπτός (kruptós, “hidden”) + γαμέω (gaméō, “to marry”).

It reproduced like the vegetable cryptogams, especially the pteridophyta; having spore cases at the tips of the wings and evidently developing from a thallus or prothallus. — At the mountains of madness, H. P. (Howard Phillips) Lovecraft

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