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The Ascus Apex in Lichenized Fungi IV. Baeomyces and Icmadophila in Comparison with Cladonia (Lecanorales) and the Non-Lichenized Leotia (Helotiales)


Honegger, Rosmarie (1983). The Ascus Apex in Lichenized Fungi IV. Baeomyces and Icmadophila in Comparison with Cladonia (Lecanorales) and the Non-Lichenized Leotia (Helotiales). The Lichenologist, 15(1):57-71.

Abstract

This comparative investigation on ascus fine structure and function substantiates the findings of Chadefaud (1960) and his coworkers indicating a close taxonomic relationship between the Baeomycetaceae and <jats:italic>Leotia</jats:italic>, a non-lichenized member of the Helotiales, rather than between the Baeomycetaceae and the Cladoniaceae and other members of the Lecanorales. Besides the distinct differences in ascus structure and function, cytological divergences were noted between the Baeomycetaceae and <jats:italic>Leotia</jats:italic> on one hand, and Cladoniaceae on the other. The occurrence of glycogen in the Baeomycetaceae and <jats:italic>Leotia</jats:italic>, but not in the Cladoniaceae and other members of the Lecanorineae, and the differences in phycobiont preference and thus in the mycobiont–phycobiont contact in the Baeomycetaceae and Cladoniaceae were discussed.

Abstract

This comparative investigation on ascus fine structure and function substantiates the findings of Chadefaud (1960) and his coworkers indicating a close taxonomic relationship between the Baeomycetaceae and <jats:italic>Leotia</jats:italic>, a non-lichenized member of the Helotiales, rather than between the Baeomycetaceae and the Cladoniaceae and other members of the Lecanorales. Besides the distinct differences in ascus structure and function, cytological divergences were noted between the Baeomycetaceae and <jats:italic>Leotia</jats:italic> on one hand, and Cladoniaceae on the other. The occurrence of glycogen in the Baeomycetaceae and <jats:italic>Leotia</jats:italic>, but not in the Cladoniaceae and other members of the Lecanorineae, and the differences in phycobiont preference and thus in the mycobiont–phycobiont contact in the Baeomycetaceae and Cladoniaceae were discussed.

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Item Type:Journal Article, refereed, original work
Communities & Collections:National licences > 142-005
Dewey Decimal Classification:Unspecified
Scopus Subject Areas:Life Sciences > Ecology, Evolution, Behavior and Systematics
Language:English
Date:1 February 1983
Deposited On:25 Oct 2018 16:51
Last Modified:31 Jul 2020 02:08
Publisher:Cambridge University Press
ISSN:0024-2829
OA Status:Green
Publisher DOI:https://doi.org/10.1017/s0024282983000055
Related URLs:https://www.swissbib.ch/Search/Results?lookfor=nationallicencecambridge101017S0024282983000055 (Library Catalogue)

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