What is etym: [Perhaps named from its resemblance to an acorn.] (Bot.) A genus of marine green algæ, in which the whole frond consists of a single oval or cylindrical cell, often an inch in length called?

valonia — Etym: [Perhaps named from its resemblance to an acorn.] (Bot.) A genus of marine green algæ, in which the whole frond consists of a single oval or cylindrical cell, often an inch in length. (Webster's 1913.)

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