Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-25T17:21:11.329Z Has data issue: false hasContentIssue false
  • English
  • Français

Degelia, A New Lichen Genus in the Pannariaceae

Published online by Cambridge University Press:  28 March 2007

L. Arvidsson  and
D. J. Galloway
L. Arvidsson
Affiliation:
Department of Plant Taxonomy, University of Göteborg, Carl Skottsbergs Gata 22, S-413 19 Göteborg, Sweden.
D. J. Galloway
Affiliation:
Botany Division, DSIR Private Bag, Christchurch, New Zealand.
Get access Rights & Permissions [Opens in a new window]

Abstract

The new genus Degelia (Pannariaceae) is described to accommodate three primarily Southern Hemisphere taxa: D. gayana (Mont.) comb, nov., D. duplomarginata (P. James & Henssen) comb, nov., and D. durietzii sp. nov. A key to the species is given, with data on synonymy, morphology, anatomy, chemistry, habitat and distribution. Coccocarpia gayana var. melacarpina Nyl. is reduced to synonymy with Degelia gayana. Relationships of Degelia with genera in the Pannariaceae and Coccocarpiaceae are discussed. Degelia is distinguished from other genera in the Pannariaceae by periclinal arrangement of cells in the upper cortex, a lower cortex of 2–3 layers of thick-walled periclinal hyphae, and Scytonema as the phycobiont; and from genera in the Coccocarpiaceae by the structure and ontogeny of the apothecia. D. duplomarginata is known from New Zealand and Hawaii, D. durietzii from New Zealand and Tasmania and D. gayana from New Zealand, Tasmania, Australia, Chile and Tristan da Cunha.

Type
Research Article
Information
The Lichenologist , Volume 13 , Issue 1 , February 1981 , pp. 27 - 50
Copyright
Copyright © British Lichen Society 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)