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Riccia tenella (Riccia tenella)


Occurs chiefly on fine-grained, black peaty soil in shallow depressions or around margins of shallow temporary pools, in granite outcrops; often associated with granite batholiths. In Georgia, inhabits seasonally damp, but usually dried-out, fine-grained soils in shallow depressions in acidic rocks. Associated are Riccia warnstorfii (R. eldeeniae), Asterella tenella, Fossombronia foveolata, and the angiosperms: Arenaria brevifolia, Diamorpha cymosa, Houstonia pusilla, and Talinum teretifolium. In Texas, the liverwort is abundant under similar situations on moist, thin soil around shallow rock pools, in part inhabited by Pilularia and Isoetes, together with R. dictyospora, forming whitish grey or light greyish green, intricate mats.

Taxonomic tree

  • Domain: Eukarya

    • Kingdom: Plantae

      • Phylum: Hepaticophyta

        • Class: Marchantiopsida

          • Order: Marchantiales

            • Family: Ricciaceae

              • Genus: Riccia