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Thallus tip Structure and Matrix Development in Bryoria Fuscescens

Published online by Cambridge University Press:  28 March 2007

G. N. Greenhalgh  and
A. Whitfield
G. N. Greenhalgh
Affiliation:
Department of Botany, University of Liverpool, Liverpool L69 3BX, UK
A. Whitfield
Affiliation:
Department of Botany, University of Liverpool, Liverpool L69 3BX, UK
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Abstract

SEM observations of the surface of branch tips of Bryoria fuscescens, before and after treatment to remove the matrix produced by the cortical hyphae, are described. Cortical hyphae are arranged in a simple, apical bundle, parallel to the long axis of the branch, which becomes, behind the apex, a hollow cylinder containing the algal population. The cortical structure is less complex than that of Usnea subfloridana. Substantial amounts of extracellular matrix are produced and the significance of this is discussed.

Type
Research Article
Information
The Lichenologist , Volume 19 , Issue 3 , July 1987 , pp. 295 - 305
Copyright
Copyright © British Lichen Society 1987

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