Frullania ignatovii (Porellales, Marchantiophyta) - a new species from Yakutia and Baikal Siberia
A new species Frullania ignatovii Sofronova, Mamontov et Potemkin is described and illustrated from the tundra belt of highlands of Yakutia (Republic of Sakha) and Baikal Siberia (Republic of Buryatia and Trans-Baikal Territory), Russia. It was collected оп rocks together with calciphilous bryophytes. It resembles F. amplicrania Steph. known from Japan but differs from it in leaf lobules inflated throughout (vs. occasionally explanate) with vertex parallel to the stem and the shoot plane vs. oriented obliquely away from the stem and strongly turned up from the shoot plane; oil-bodies more numerous 4-10 vs. 2-4 per cell, nearly homogenous vs. of few globules.