Definition of prothallus
English to English noun - The minute primary growth from the spore of ferns and other Pteridophyta, which bears the true sexual organs; the oöphoric generation of ferns, etc.
source: Webster 1913
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prothallus, proteales, proatlas, proteles, parietales, port louis, proteolysis, protology, perdulous, partialize, portulacaceous, parrotlike, prideless, portulaca, pyretology, pyritology, portulacaceae
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