Pekka Isoviita
1931
S.O. Lindberg's bryological reports in Finnish newspapers
Dicranum leioneuron Kindb. and the other Dicranum mosses inhabiting raised bogs in Finland
Dillenius's Historia muscorum as the basis for hepatic nomenclature, and S.O. Lindberg's Collection of Dillenian bryophytes
Isothecium alopecuroides, comb. nova, and I. myosuroides
Leiocolea alpestris, comb. nova (Hepaticae)
On Dicranum drummondii and D. ontariense (Musci)
Scopoli's lichen specimens and the typification of Lobaria scrobiculata (Scop.)DC
Typification of Drepanocladus sendtneri (Musci, Amblystegiaceae)
[Collected works