Favoritos de blue543

M.J. Oldham 37807; specimen record; replicates at TRT, NHIC# 09250, CAN; identified by M.J. Oldham 2010, !P.W. Ball April 2012; locally common; open rocky summit; mossy edges of rock. with Empetrum nigrum, Picea mariana, Rubus chamaemorus, Vaccinium vitis-idaea, Ledum decumbens, Andromeda polifolia; Precambrian granitic bedrock outcrop. See Oldham, Michael J., and Samuel R. Brinker. 2011. Additions to the vascular flora of Ontario, Canada, from the Sutton Ridges, Hudson Bay Lowland ecoregion. Canadian Field-Naturalist 125(3): 241–247.

Growing on lower trunk of small Pinus banksiana in open, sandy mixed woodland. ID uncertain, but based on scrobiculate upper thallus with what seem to be a small amount of developing pseudocyphellae and soredia, and with rounded brownish lobe tips, but something about the upper surface seems odd, and also the black underside is definitely weird.

First state record discovered in May and collected July 30. Duplicates to be sent to University of Wisconsin, University of Michigan, and Michigan State University. Present on high hummocks throughout this peatland, but this collection from underneath spruces along a minerotrophic channel draining a large spring. Habitat shot & comparisons with C. trisperma in last 6 photos.

reticulately ridged upper surface, black lower surface, laminal soralia. K+y, KC-, C-, UV-. As far as I can tell, this is the first time this species has been observed in WI. The chemistry tests rule out other possibilities. On small tamarack branch, in tamarack bog.