Manuel Llenas Fernández (c. 1875-1937) was a doctor in Pharmacy and Natural Sciencies. In 1907 he was named the collector of the old Natural Sciences Museum of Catalonia, forerunner of the current Botanical Institute of Barcelona (IBB), to initiate its herbarium. Its Pharmacy doctoral thesis Assaig d’una flora liquènica de Catalunya published in 1910 was an important contribution to this study field because it is considered the first study of lichens in Catalonia, where, by then, these organisms were not typically studied.
The Llenas lichenotheca is an historic collection and due to its very well taken care of format, it is kept separate from the General lichenotheca. The collection is made up of the lichens he recollected between 1901 and 1909 from around the Catalan territory of his doctoral thesis.
This collection has 324 specimens grouped in thirteen volumes classified by family and genus following the classification criteria at the time. It includes 58 different genera, highlighting Parmelia (classification criteria at the time), Physcia, Cladonia, Ramalina and Usnea genera.
This collection is available at GBIF on the following link (exportation date: November 2019).