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Aptrootia (Dothideomycetes: Trypetheliaceae), a new genus of pyrenocarpous lichens for Thelenella terricola

Published online by Cambridge University Press:  20 February 2007

Robert LÜCKING ,
Harrie J. M. SIPMAN ,
Loengrin UMAÑA ,
Jose-Luis CHAVES  and
H. Thorsten LUMBSCH
Robert LÜCKING
Affiliation:
Department of Botany, The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois, 60605-2496, USA. Email: rlucking@fieldmuseum.org
Harrie J. M. SIPMAN
Affiliation:
Botanisches Museum Berlin Dahlem, Königin-Luise-Strasse 6–8, D-14191 Berlin, Germany.
Loengrin UMAÑA
Affiliation:
Laboratorio de Hongos, Instituto Nacional de Biodiversidad (INBio), Apdo. 22-3100, Santo Domingo de Heredia, Costa Rica.
Jose-Luis CHAVES
Affiliation:
Laboratorio de Hongos, Instituto Nacional de Biodiversidad (INBio), Apdo. 22-3100, Santo Domingo de Heredia, Costa Rica.
H. Thorsten LUMBSCH
Affiliation:
Department of Botany, The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois, 60605-2496, USA. Email: rlucking@fieldmuseum.org
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Abstract:

The new genus Aptrootia Lücking & Sipman is described for Thelenella terricola, an enigmatic terricolous and muscicolous, pyrenocarpous taxon known from Papua New Guinea and Costa Rica, and the new combination Aptrootia terricola (Aptroot) Lücking, Umaña & Chaves comb. nov. is introduced. Aptrootia is characterized by completely immersed perithecia with brown-black ostiolar region, surrounded by a white, cartilaginous thallus resembling that of Gomphillaceae. The hamathecium is typical of Trypetheliaceae, with thin, anastomosing paraphysoids embedded in a gelatinous matrix, but the dark brown ascospores are otherwise unknown within the family. The only known species was tentatively described in Thelenella, but hamathecium type and molecular data place Aptrootia within Trypetheliaceae.

Keywords

Costa RicaloculoascomycetesmtSSU rDNAPapua New GuineaThelenellaTICOLICHEN
Type
Research Article
Information
The Lichenologist , Volume 39 , Issue 2 , March 2007 , pp. 187 - 193
Copyright
Copyright © British Lichen Society 2007

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