PROVINCIAL LIST - Saskatchewan Conservation Data Centre

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Figure 12. A lawn of Polytrichum sp. moss with Cladonias in the shady under-storey of a mesic upland jack pine stand. Photo courtesy of Robert A. Wright. Peltigera spp. are an exception to this rule (Figures 13 and 14), being quite prolific in the feather moss carpets that dominate the under-storeys of many mixed-woods. Ground lichens still hold sway in very rapidly-drained jack pine stands on sandy substrates. Even here, the abundance of graminoids, forbs, and mosses is higher, relative to jack pine stands of the Shield ecozones. Stands of these conifers are often more closedcanopied and shadier than stands in more northern ecozones. Lichen growth is consequently less exuberant. Black spruce peatlands support diverse epiphytic lichen assemblages and certain Cladina spp. as well as Icmadophila ericetorum.
Figure 13. Peltigera canina with the moss Polytrichum juniperinum in a white birch mixed-wood. Figure 14. Peltigera apthosa in the feather-moss under-storey of a tamarack stand near Prince Albert, SK. Prairie. One of the confusing aspects of this ecozone is that it does contain two ecoregions with extensive woodland cover: the Aspen Parkland characterized by aspen grove ecosystems and the extensive hardwood forests of Moose Mountain) and; the Cypress Uplands, with extensive stands of aspen, white spruce, and lodgepole pine). Consequently, the reader should be wary about interpreting the lichen list for this ecozone as being a product of the ecological conditions of grassland ecosystems alone. Aspen groves show little in the way of abundant lichen growth except for the Xanthomendoza fallax and Physcia aipolia on tree trunks, with occasionally Cladonia atop dead woody material on the forest floor. However, the forests of the Cypress Hills are rich in lichens species typical of the boreal forest or representing some cordilleran species (e.g. Letharia vulpina)l. Nevertheless, within the grassland-dominated
Page 1 and 2: -THE LICHENS OF SASKATCHEWAN, CANAD
Page 3 and 4: The ecozones have been further subd
Page 5 and 6: Figure 4. Looking north from the tu
Page 7 and 8: Boreal Shield. Forests increase in
Page 9: Figure 11. Luxuriant carpets of Cla
Page 13 and 14: Historical Overview of Research on
Page 15 and 16: ongoing surveys (2010-). Sheard (20
Page 17 and 18: allied fungi of the continental Uni
Page 19 and 20: Press, New York. Thomson J.W.1997 A
Page 21 and 22: Genus and Species Authority Growth
Page 28 and 29: IMSHAUGIA Imshaugia aleurites (Ach.
Page 30 and 31: MELANELIA Melanelia disjuncta (Eric
Page 32 and 33: Peltigera neckeri (Hepp. ex Müll.)
Page 34 and 35: Psora himalayana (Church. Bab.) Tim
Page 36 and 37: Staurothele fissa STEREOCAULON (Tay
Page 38 and 39: XANTHOPARMELIA Xanthoparmelia (Tuck
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Genus and Species Authority Growth
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Genus and Species Authority Ecozone
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Genus and Species PLACYNTHIUM Autho
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PROVINCIAL LIST - Saskatchewan Conservation Data Centre

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