Konstantinova, N.A., A.A. Vilnet & Yu.S. Mamontov. 2020. A new species of the genus Lophozia (Lophoziaceae) from the Svalbard Archipelago

Arctoa (2020) 29: 124–134

doi: 10.15298/arctoa.29.10

A new species of liverwort Lophozia svalbardensis (Marchantiophyta, Jungermanniopsida) collected in the Nordaustlandet (Svalbard Archipelago) is described. It is characterized by heteroicous inflorescence, presence of low perigynium, crenulate-ciliate perianth mouth, thick walled cells near perianth mouth; colourless to slightly pinkish red tinged gemmae contrasting in color with red-brown marginal cells of the uppermost leaves, two-layer thick base of leaves. A detailed description including illustrations of the species is given. The phylogenetic position of the species is considered, and morphological differences from similar species are discussed.