ulva

WORDNET DICTIONARY

ulva(n = noun.animal) genus ulva - type genus of the family Ulvaceae; green seaweed having a thallus two cells thick: sea lettuce; Array

is a kind of protoctist genus

is a member of family ulvaceae, sea-lettuce family, ulvaceae

ulva, prop. n. [L., sedge.].

A genus of thin papery bright green seaweeds including the kinds called sea lettuce. [1913 Webster]

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