Hepatics from Rovno amber (Ukraine). 14. Lejeunea aristovii sp. nov. and Odontoschisma dimorphafrom Belokorovychi

Résumé fourni par la source

A study of Rovno amber has revealed two fossil leafy liverwort species of the genera Lejeunea and Odontoschisma (Marchantiophyta), which are new to the late Eocene flora of Rovno amber. One of these species, Odontoschisma dimorpha, is known from Baltic and Bitterfeld amber, whereas the other species, Lejeunea aristovii, is described here as new. Lejeunea aristovii differs from the most similar Paleogene species of that family, Cheilolejeunea latiloba, in the shape of its leaves and underleaves.

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