Veli Räsänen

Finnish botanist (1888–1953).

Veli Johannes Paavo Bartholomeus Räsänen (24 August 1888 – 16 July 1953) was a Finnish lichenologist who made contributions to the study and documentation of Nordic and Baltic lichen funga. As a lecturer at various agricultural institutions and the University of Kuopio, he published extensive systematic and floristic works on lichens in Finland, Estonia, and the Petsamo region, including his comprehensive 1951 guide Suomen jäkäläkasvio (Finnish Lichens). Räsänen curated two major lichen exsiccatae collections, compiling over 1,750 specimens between 1935 and 1952, and described numerous previou

Abbreviations: Räsänen
Occupations: botanist, botanical collector, biologist
Citizenships: Russian Empire, Finland
Languages: Finnish
Dates: 1888-08-24T00:00:00Z – 1953-07-16T00:00:00Z
Birth place: Simo
Direct attributions: 0 plants, 158 fungi
Authorship mentions: 0 plants, 258 fungi

158 fungi attributed, 100 fungi contributed to258 fungi:

Rhizocarpon macrosporum (Lemon Map Lichen) Räsänen 1943
fungi species in the rhizocarpaceae family
Rhizocarpon macrosporum (lemon map lichen) is a smooth, bright yellow crustose aereolate lichen found in the Sonoran Desert of California and Arizona, and in Africa and Asia. It grows on non-calciferous rock in clearings in coniferous forests, from 1,475 to 3,030 metres (4,839 to 9,941 ft). It is very similar to R. geographicum except for the size of the spores. "Macrosporum" means "large spore". Areoles are 1.4 to 2 millimetres (0.055 to 0.079 in) in diameter and round to angular. The prothallus is black and often not distinct. The medulla is white.
Candelariella antennaria (Pussytoes Eggyolk Lichen) Räsänen 1939
fungi species in the candelariaceae family
Candelariella antennaria, or the pussytoes eggyolk lichen, is a lichen commonly distributed in North America, and has been observed in South America, Asia, Australia, and Europe. It is characterized by its gray thallus and bright yellow apothecia, as well as its very small size.
Biatoropsis usnearum (Beard-lichen Parasite) Räsänen 1934
fungi species in the order tremellales
Biatoropsis usnearum is a species of parasitic fungus that grows exclusively on lichen species of the genus Usnea, particularly U. subfloridana, U. barbata, and U. florida. First described in 1934 by Veli Räsänen, it has become a significant model organism in fungal evolution studies due to its specialised host relationships. The fungus belongs to the order Tremellales, though its precise family classification remains uncertain. It forms distinctive swellings or galls on its host lichens, ranging in colour from pale pink to dark reddish-brown, and notably suppresses the production of host
Usnea wasmuthii Räsänen 1931
fungi species in the parmeliaceae family
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Usnea fulvoreagens (Beard Lichen) (Räsänen) Räsänen 1935
fungi species in the parmeliaceae family
Usnea fulvoreagens is a species of beard lichen in the family Parmeliaceae. The lichen has a shrubby thallus that is richly branched, and bases that are blackened. The presence of norstictic acid is often used to differentiate this species from other similar species. It has a widespread distribution in Europe.
Biatoropsis Räsänen 1934
fungi genus
Biatoropsis is a genus of lichenicolous (lichen-dwelling) fungi of uncertain familial placement in the order Tremellales. It comprises 11 species that parasitise various species in the fruticose lichen genera Usnea and Protousnea.
Ramalina aspera Räsänen 1944
fungi species in the ramalinaceae family
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Pseudocyphellaria billardierei (Delise) Räsänen 1932
fungi species in the lobariaceae family
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Protothelenella Räsänen 1943
fungi genus in the protothelenellaceae family
Protothelenella is a genus of fungi in the family Protothelenellaceae. It contains 11 species, some of which form lichens. Protothelenella species have a crustose thallus with spherical to pear-shaped, dark brown to blackish perithecia. Microscopic characteristics of the genus include bitunicate asci with an amyloid tholus, and ascospores that are colourless and contain multiple internal partitions. Some species grow on acidic substrates including rocks, soil, bryophytes, plant detritus or rotten wood. Other species are lichenicolous (lichen-dwelling), growing on species of Solorina,
Placomaronea Räsänen 1944
fungi genus in the candelariaceae family
Placomaronea is a genus of lichen-forming fungi in the family Candelariaceae. These lichens are primarily found in the high mountains of South America, particularly in the Andes, where they grow on rocks and soil in harsh, exposed conditions. Most species form bright yellow, circular patches that can range from flat crusts to more complex, three-dimensional structures. The genus is distinguished from similar yellow lichens by its distinctive cellular structure, which includes specialised pigment-containing caps on the surface cells. Recent studies have added two new species from Peru,
Ochrolechia microstictoides Räsänen 1936
fungi species in the ochrolechiaceae family
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Lecanora soralifera (Suza) Räsänen 1931
fungi species in the lecanoraceae family
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Lecanora elatinoides Räsänen 1949
fungi species in the lecanoraceae family
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Lecanora andina Räsänen 1939
fungi species in the lecanoraceae family
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Hypogymnia austerodes (Varnished Tube Lichen) (Nyl.) Räsänen 1943
fungi species in the parmeliaceae family
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Graphis centrifuga Räsänen 1949
fungi species in the graphidaceae family
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Fulgensia bracteata (Bracted Sulphur Lichen) (Hoffm.) Räsänen 1931
fungi species in the teloschistaceae family
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Candelariella lutella (Eggyolk Lichen) (Vain.) Räsänen 1939
fungi species in the candelariaceae family
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Biatora efflorescens (Hedl.) Räsänen 1935
fungi species in the ramalinaceae family
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Tremotylium africanum Räsänen 1949
fungi species in the graphidaceae family
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Sphaerophorus tuckermanii (Tuckerman's Coral Lichen) Räsänen 1933
fungi species in the sphaerophoraceae family
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Rhizocarpon riparium (Streamside Map Lichen) Räsänen 1942
fungi species in the rhizocarpaceae family
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Rhizocarpon intermediellum (Ice Map Lichen) Räsänen 1943
fungi species in the rhizocarpaceae family
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Placomaronea candelarioides Räsänen 1944
fungi species in the candelariaceae family
Placomaronea candelarioides is a species of saxicolous (rock-dwelling), foliose lichen in the family Candelariaceae. It is found in South America. This lichen species can be recognised by its distinct umbilicate (single attachment point), monophyllous (single lobe) growth form. It was first described in 1944 by the Finnish scientist Veli Räsänen from specimens collected in Argentina, and serves as the type species for its genus. The lichen grows on acidic rocks in mountainous regions along the Andes, from Argentina north to Peru, typically at elevations between about 2,000 and 4,000 meters.
Gyalecta kukriensis (Dimple Lichen) (Räsänen) Räsänen 1939
fungi species in the gyalectaceae family
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Candelariella kuusamonsis Räsänen 1939
fungi species in the candelariaceae family
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Usnea flavocardia (Wirth's Beard Lichen) Räsänen 1936
fungi species in the parmeliaceae family
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Rhizocarpon saananse (Map Lichen) Räsänen 1942
fungi species in the rhizocarpaceae family
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Rhizocarpon norvegicum (Norwegian Map Lichen) Räsänen 1943
fungi species in the rhizocarpaceae family
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Ocellularia violacea Räsänen 1949
fungi species in the graphidaceae family
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