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Atla (lichen)
''Atla'' is a genus of crustose lichens in the family Verrucariaceae. It has nine species that grow on rocks or on soil. Taxonomy The genus was circumscribed in 2008 by Sanja Savić and Leif Tibell, with '' Atla alpina'' assigned as the type species. According to the authors, the generic name ''Atla'' refers to "the name of a Norse water goddess who sometimes accompanied us in the same habitats as the species named after her." Three species were included in the original circumscription of the genus; these species formed a well-defined clade in the family Verrucariaceae, sister to a clade containing several '' Sporodictyon'' species. Several newly described species were later added from Alaska and Finland. Description ''Atla'' lichens have crustose thalli that are blackish in colour with a surface texture ranging from warty (''verrucose'') to diffusely areolate to immersed in the substrate. The perithecia are 0.3–0.9 mm in diameter, and either sessile or immersed. Ascospo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leif Tibell
Leif Tibell (born 16 November 1944) is a Swedish lichenologist and Emeritus Professor at the University of Uppsala. He is known for his expertise on calicioid lichens. He was awarded the Acharius Medal in 2012 for lifetime achievements in lichenology. Biography Tibell was born in Gothenburg, Sweden, in 1944. He developed an interest in lichens at a young age after meeting the prominent lichenologist Gunnar Degelius through the Gothenburg Botanical Garden, where they were both members. Degelius mentored Tibell, and recommended to him that he should study the subject at Uppsala University, which he did after moving there in the mid 1960s. He continued with graduate studies under the supervision of Rolf Santesson after accompanying him on a research excursion to Norway's Varanger Peninsula in 1966. Santesson was Curator of the Herbarium at the Botany Department. He was also the father of Johan Santesson, who knew Tibell through an organic chemistry research group they were both ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
