单词	Rivulariaceae
释义	Rivulariaceae plural noun Riv·​u·​lar·​i·​a·​ce·​ae : a family of freshwater blue-green algae (order Hormogonales) consisting of slender gradually attenuated or hair-tipped filaments usually growing in tufts attached to the substrate and frequently mucilaginous see calothrix , rivularia rivulariaceous ¦⸗⸗ˌ⸗⸗¦āshəs adjective Word History Etymology New Latin, from Rivularia, type genus + -aceae
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