PROVINCIAL LIST - Saskatchewan Conservation Data Centre

biodiversity.sk.ca

PROVINCIAL LIST - Saskatchewan Conservation Data Centre

In the north-eastern portions of the ecozone, the underlying Precambrian rock is usually

mantled with a thin layer of glacial till but diverse assemblages of saxicolous (i.e., rockdwelling)

lichens are able to colonize the glacial erratics and churned boulder fields

common in upland sites (Figure 6).

Figure 6. Crustose lichens on boulders near Misaw Lake, SK. Photo courtesy of Robert A. Wright.

Bedrock outcroppings are more common south and west in the ecozone and support

rich growths of Cladonia (Reindeer lichens) and Stereocaulon (Figure 7).

Figure 7. Cladonia spp., and crustose lichens growing with goldenrod (Solidago missouriensis), sage

(Artemisia biennis), three-toothed saxifrage (Saxifraga tricuspidata) and a fern (Woodsia ilvensis) on a granitic

outcrop, southwest shore of Tazin Lake, SK. Photo courtesy of Robert A. Wright.

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