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Albatrellus citrinus sp. nov., connected to Picea abies on lime rich soils

Published online by Cambridge University Press:  16 October 2003

Svengunnar RYMAN ,
Petra FRANSSON ,
Hanna JOHANNESSON  and
Eric DANELL
Svengunnar RYMAN
Affiliation:
Museum of Evolution, Botany Section, Uppsala University, Norbyvägen. 16, SE-752 36 Uppsala, Sweden. E-mail: Svengunnar.Ryman@evolmuseum.uu.se
Petra FRANSSON
Affiliation:
Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, Box 7026, SE-750 07 Uppsala, Sweden.
Hanna JOHANNESSON
Affiliation:
Department of Plant and Microbial Biology, 111 Koshland Hall, University of California, Berkeley, CA 94720-3102, USA.
Eric DANELL
Affiliation:
Museum of Evolution, Botany Section, Uppsala University, Norbyvägen. 16, SE-752 36 Uppsala, Sweden. E-mail: Svengunnar.Ryman@evolmuseum.uu.se
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Abstract

Field observations indicated that a morphotype of Albatrellus subrubescens seemed connected to Picea abies and lime rich soils, while the original morphotype seemed connected with Pinus sylvestris and indifferent to lime. We conducted a molecular study (ITS sequencing of 22 Albatrellus specimens) to test the hypothesis that we in fact had discovered a new species. Our results confirmed the hypothesis, i.e. the Picea taxon (604 bp ITS) had little intraspecific variation in spite of 1600 km distance between samples, but compared with the Pinus taxon (598 bp ITS) the sequence difference was constantly 5.6% regardless of close distance (75 km). We describe the new species A. citrinus, which apart from ecology and ITS sequence, is different from A. subrubescens by a distinct yellowing with age, lack of dark spots of the cap, a mild taste and somewhat narrower spores. A. citrinus seems to be more related to A. ovinus than to A. subrubescens, and A. syringae may not even be a true Albatrellus.

Type
Research Article
Information
Mycological Research , Volume 107 , Issue 10 , October 2003 , pp. 1243 - 1246
Copyright
© The British Mycological Society 2003

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