E. H. Moss’s scientific contributions

For an area in south-central Alberta, 159 bryophytic taxa are reported. Approximately, two-thirds of these are new records for the area and 19 are apparently new to Alberta. Some of the more significant records for Alberta are Sphagnum robustum, Aloina rigida, Brachythecium acutum, Calliergon trifarium, Leskea obscura, Haplocladium microphyllum, Thuidium philibertii, Entodon cladorrhizans, and E. orthocarpus, the latter a rare species in North America. Ecological notes are included for most of the species. Moss synusiae of wet meadow, wet thicket, Sphagnum bog, bog forest, and marl bog are described and the main hydroseres are indicated.