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On the Taxonomy and distribution of Rhodobryum roseum and its related species (Bryophyta)
IWATSUKI, Zennoske.- -- On the Taxonomy and distribution of Rhodo= -- bryum roseum and its related species<Bryo= -- phyta>.Zennoske Iwatsuki and Timo Koponen. - -- Helsinki:Soc.pro fauna et flora Fennica 1972. -- 22 S.mit 6 Fig.u.4 Tab.4 -- (Acta botanica Fennica.96.) -- 1973! -- Sr..