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Lichen Decomposition in a Black Spruce Bog

Published online by Cambridge University Press:  28 March 2007

C. M. Wetmore
C. M. Wetmore
Affiliation:
Botany Department, University of Minnesota, St Paul, Minnesota 55108, USA.
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Abstract

Nylon mesh litter bags containing Parmelia caperata, P. flaventior, P. subrudecta, Evernia nesomorpha, Hypogymnia physodes and Umbilicaria muehlenbergii were placed on the floor of a black spruce bog in northern Minnesota to study the rates of decomposition. P. caperata and E. mesomorpha had decomposed after 10 months. Most of the lichens had completely decayed after 13 months but a few thalli of some species placed on top of hummocks were still alive. The species with usnic acid decayed as rapidly as those without. Lichens decompose rapidly but not more rapidly than some vascular plants.

Type
Research Article
Information
The Lichenologist , Volume 14 , Issue 3 , October 1982 , pp. 267 - 271
Copyright
Copyright © British Lichen Society 1982

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