Caloplaca fuscorufa, a misunderstood species in northern Europe

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Caloplaca fuscorufa, a misunderstood species in northern Europe. / Arup, Ulf; Arneng, Emma; Søchting, Ulrik.

In: Lichenologist, Vol. 39, No. 5, 2007, p. 409-414.

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Arup, Ulf ; Arneng, Emma ; Søchting, Ulrik. / Caloplaca fuscorufa, a misunderstood species in northern Europe. In: Lichenologist. 2007 ; Vol. 39, No. 5. pp. 409-414.

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TY - JOUR

T1 - Caloplaca fuscorufa, a misunderstood species in northern Europe

AU - Arup, Ulf

AU - Arneng, Emma

AU - Søchting, Ulrik

PY - 2007

Y1 - 2007

N2 - Caloplaca fuscorufa H. Magn. is a poorly known species that for a long time was known only from a single locality in Jämtland, northern Sweden, where it was collected in 1910. It has been suggested to be synonymous with C. crenularia (With.) J. R. Laundon, but has also been confused with C. exsecuta (Nyl.) Dalla Torre & Sarnth. We have compared the isotype of C. fuscorufa and material collected in Sweden, Norway and Svalbard with presumably related species, using morphology, anatomy and chemistry as well as molecular data. The results show that C. fuscorufa is a distinct species, differing from C. crenularia mainly in somewhat larger spores with wider septa, different colour of the apothecia and a more northern distribution. From C. exsecuta it differs mainly in chemistry and smaller spores with smaller septa. Caloplaca crenularia is shown to have a more southern distribution in Sweden than previously understood. Chemical data and a molecular analysis based on ITS data show that C. fuscorufa is related to C. crenularia and C. ammiospila, but clearly separated from these species.

AB - Caloplaca fuscorufa H. Magn. is a poorly known species that for a long time was known only from a single locality in Jämtland, northern Sweden, where it was collected in 1910. It has been suggested to be synonymous with C. crenularia (With.) J. R. Laundon, but has also been confused with C. exsecuta (Nyl.) Dalla Torre & Sarnth. We have compared the isotype of C. fuscorufa and material collected in Sweden, Norway and Svalbard with presumably related species, using morphology, anatomy and chemistry as well as molecular data. The results show that C. fuscorufa is a distinct species, differing from C. crenularia mainly in somewhat larger spores with wider septa, different colour of the apothecia and a more northern distribution. From C. exsecuta it differs mainly in chemistry and smaller spores with smaller septa. Caloplaca crenularia is shown to have a more southern distribution in Sweden than previously understood. Chemical data and a molecular analysis based on ITS data show that C. fuscorufa is related to C. crenularia and C. ammiospila, but clearly separated from these species.

KW - Sweden

KW - Svalbard

KW - saxicolous

KW - lichen

KW - molecular

KW - ITS

KW - Norway

U2 - 10.1017/S0024282907007098

DO - 10.1017/S0024282907007098

M3 - Article

VL - 39

SP - 409

EP - 414

JO - Lichenologist

JF - Lichenologist

SN - 0024-2829

IS - 5

ER -