- Lichen speciation is sparked by a substrate requirement shift and reproduction mode differentiation(2022-06-23) Kantelinen, Annina; Printzen, Christian; Poczai, Péter; Myllys, Leena; University of Helsinki - Kantelinen, Annina; Senckenberg Museum - Printzen, Christian; University of Helsinki - Poczai, Péter; University of Helsinki - Myllys, Leena