Wend your way behind the residences and toward the large parking lot, hockey/basketball rink, and the paved path leading to Confederation college. As you leave the sport facilities behind (Fig. 7-1), on your right will be messy looking shrubs of pincherry (Prunus pensylvanica, Fig. 7-2), whose branches are covered with fruticose lichens (Fig. 7-3).
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Continue a little further along the paved path to the grove of trembling aspens (Populus tremuloides - cousin of the European P. tremula) on the left (just beyond the cyclist in Fig. 7-1). A few inconspicuous crustose lichen species growing on the tree bark were marked with coloured pins. These are described below.
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species with black apothecia is just above the green pin
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At this point, turn around, and head back past the ice rink, but keep right toward student residences and Avilla Center.