cryptogamyoudaoicibaDictYouDict[cryptogam 词源字典]
"A plant that has no true flowers or seeds, including ferns, mosses, liverworts, lichens, algae, and fungi", Mid 19th century: from French cryptogame, from modern Latin cryptogamae (plantae), denoting non-flowering plants, from Greek kruptos 'hidden' + gamos 'marriage' (because the means of reproduction was not apparent).[cryptogam etymology, cryptogam origin, 英语词源]