| Fungal assemblages in mats of Cladonia mitis, C. rangiferina, and Pleurozium schreberi in Manitoba were isolated and compared in July and September. Temporal changes in these fungal assemblages were seen over the two sampling periods. The fungal assemblages of C. mitis and C. rangiferina were significantly different from those found in P. schreberi during both sampling periods. Isolation of fungi from C. mitis and C. rangiferina involved subsampling the lichens into upper and lower strata, which were also compared, revealing significant differences between the upper canopies and the lower bases of the lichen mats. Alternaria, Cladosporium, and Epicoccum, common epiphytes, were found to be associated with the upper canopies of C. mitis and C. rangiferina, while Mucor and Trichoderma, common soil fungi, were found associated with the bases of C. mitis and C. rangiferina. (Abstract shortened by UMI.)... |
