Ronikier M, Ronikier A, 2011. Rhizomarasmius epidryas (Physalacriaceae): phylogenetic placement of an arctic-alpine fungus with obligate saprobic affinity to Dryas spp. Mycologia 103: 1124–1132 DOI

Stachurska-Swakoń A, Cieślak E, Ronikier M, 2011. Genetic variability of small isolated populations of Cicerbita alpina (L.) Wallr. (Asteraceae) in the Beskid Mały Mts. (southern Poland). Polish Journal of Ecology 59: 279–288

Zalewska-Gałosz J, Ronikier M, 2011. Potamogeton maëmetsiae - a new hybrid of linear-leaved pondweeds from central Europe. Preslia 83: 259–273