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Labyrintha Implexa (Porpidiaceae), a New Genus and Species from New Zealand

Published online by Cambridge University Press:  28 March 2007

W. M. Malcolm ,
J. A. Elix  and
B. Owe-Larsson
W. M. Malcolm
Affiliation:
Box 320, Nelson, New Zealand.
J. A. Elix
Affiliation:
Department of Chemistry, Australian National University, GPO Box 4, Canberra, ACT 2601, Australia.
B. Owe-Larsson
Affiliation:
Botanical Museum (Fytoteket), Uppsala University, Villavägen 6, S–752 36 Uppsala, Sweden.
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Abstract

Labyrintha Malcolm, Elix & Owe-Larsson, a new genus in the Porpidiaceae, is described. It is based on the crustose taxon L. implexa Malcolm, Elix & Owe-Larsson, a saxicolous species from acidic rocks in alpine and subalpine areas in New Zealand. Labyrintha is distinguished from closely related genera by a combination of characters: cephalodia, immersed apothecia, large, simple ascospores (60–70 × 30–35 μm), halonate when young and dark-pigmented when mature, fusiform conidia, no cortex, no thallus chemistry, densely packed anticlinal hyphae, and a previously undescribed thallus anatomy in which the photobiont is arranged in anastomosing vertical sheets.

Type
Research Article
Information
The Lichenologist , Volume 27 , Issue 4 , July 1995 , pp. 241 - 248
Copyright
Copyright © British Lichen Society 1995

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