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Ahtiana sphaerosporella 44926.jpg
Ahtiana sphaerosporella growing on Whitebark Pine (Pinus albicaulis) in Whistler, British Columbia, Canada
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Subdivision: Pezizomycotina
Class: Lecanoromycetes
Order: Lecanorales
Family: Parmeliaceae
Genus: Ahtiana
Type species
Ahtiana sphaerosporella
(Müll. Arg.) Goward

Ahtiana is a genus of lichenized fungi within the Parmeliaceae family.[1] A monotypic genus, it contains the single species Ahtiana sphaerosporella, found in western North America. This species was segregated from the genus Parmelia by Canadian lichenologist Trevor Goward in an 1985 publication.[2] It had been suggested that the genus include A. aurescens and A. pallidula (formerly Cetraria aurescens Tuck. and Cetraria pallidula Tuck., respectively) based on similarities in morphology,[3] but this transfer is not supported by molecular analysis.[4]

The genus was named in honor of Finnish botanist Teuvo Tapio Ahti.[2]


  1. ^ Lumbsch TH, Huhndorf SM (December 2007). "Outline of Ascomycota – 2007". Myconet (Chicago, USA: The Field Museum, Department of Botany) 13: 1–58. 
  2. ^ a b Goward T. (1985). "Ahtiana, a new lichen genus in the Parmeliaceae". Bryologist 88 (4): 367–71. doi:10.2307/3242678. JSTOR 3242678. 
  3. ^ Thell A, Goward T, Randlane T, Kärnefelt EI, Saag A (1995). "A revision of the North American lichen genus Ahtiana (Parmeliaceae)". Bryologist 98 (4): 596–605. doi:10.2307/3243591. JSTOR 3243591. 
  4. ^ Thell A, Högnabbaa F, Elix JA, Feuerer T, Kärnefelt I, Myllys L, Randlane T, Saag A, Stenroos S, Ahti T, Seaward MRD (2009). "Phylogeny of the cetrarioid core (Parmeliaceae) based on five genetic markers". Lichenologist 41 (5): 489–511. doi:10.1017/S0024282909990090. 

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