Pekka Halonen, Finnish lichenologist (specialised on Usnea)
- Botanical Museum, P.O. Box 3000, FIN-90014 Univ. Oulu, Finland
IPNI standard form: Halonen
Publications
- Studies on the lichen genus Usnea in East Fennoscandia and Pacific North America. Academic Dissertation (2000), University of Oulu, Finland
External links
- Studies on the lichen genus Usnea in East Fennoscandia and Pasific North America. (2000)
- Usnea pacificana, sp. nov. and U. wasmuthii (Lichenized Ascomycetes) in Pacific North America. (2000)
- Proposal to Conserve the Name Usnea fulvoreagens (Lichenized Ascomycota, Parmeliaceae) with a Conserved Type. (2002)
- Taxonomy, distribution and threat status of deficiently known lichen species in Finland. (2005)
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