Les lichens sur serpentine et amphibolite du plateau du mont Albert, Gaspésie, Québec

• Published in: Canadian Journal of Botany
• Main Authors: Sirois, Luc, Lutzoni, François, Grandtner, Miroslav M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1988
• Subjects: Arctic; Canada; Mount Albert
• Online Access: http://dx.doi.org/10.1139/b88-124; http://www.nrcresearchpress.com/doi/pdf/10.1139/b88-124

At Mount Albert, Quebec, many taxa are found exclusively on either serpentine or amphibolite contiguous formations. This exclusivity is clearly more noticeable within the saxicolous lichens than within the other groups. Serpentine seems to be an unfavourable substratum for the growth of saxicolous lichens. There are more infrequent taxa on serpentine than on amphibolite. The saxicolous, muscicolous, and terricolous lichen flora and the lichenicolous fungi of the plateau include 202 taxa, most of which have an arctic affinity. Of these taxa, 36 are recorded for the first time in Quebec, 16 in Canada and, 11 in North America. The ecological influence of serpentine on the lichens is, in many aspects, similar to that observed on vascular plants.