Parmelia Pokornyi rokonsági köre és leszármazása
Subtitle: The relationship and descendence of Parmelia Pokornyi
By: Irta Gyelnik, V.
Published: 1931
Place of publication: Budapest
Language: lat
Number of pages: 52
Other titles: Relationship and descendence of Parmelia Pokornyi
Notes: Offprint of Magyar Botanikai Lapok, heft 1/12, 1931, p. 45-52.

In Latin, with a forward in Hungarian and a forward in English.