Original Research

Two closely related species of Caloplaca (Teloschistaceae, Lichenes) from the Namib Desert

I. Kärnefelt
Bothalia | Vol 18, No 1 | a981 | DOI: https://doi.org/10.4102/abc.v18i1.981 | © 1988 I. Kärnefelt | This work is licensed under CC Attribution 4.0
Submitted: 21 October 1988 | Published: 23 October 1988

About the author(s)

I. Kärnefelt, Department of Systematic Botany, University of Lund, Sweden

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Abstract

The anatomical and reproductive adaptations of two closely related lichen species.  Caloplaca elegantissima (Nyl.) Zahlbr. and C. namibensis Karnef., sp. nov., occurring in the outer Namib fog desert, are discussed. Both species belong to the cmstose forms, frequently found in the remarkably rich lichen communities, which largely depend on fog precipitation for their water supply. Both species are endemic to the Namib Desert. They are mainly distributed in South West Africa/Namibia but also extend into south-western Angola. The asexual isidiate species.  C. namibensis Karnef., is described as new.


Keywords

anatomy; <i>Caloplaca elegantissima</i>; <i>C. namibensis</i>; sp. nov.; Lichenes; Namib Desert. Teloschistaceae

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