One hundred ninety-nine species of bryophytes are documented for Erie County, Pennsylvania, representing 34% of the Pennsylvania bryophyte flora. This work is the result of scattered surveys over multiple years and the 2012 Crum Workshop. Aneura maxima, Calypogeia integristipula, C. sphagnicola, Fuscocephaloziopsis loitlesbergeri, F. macrostachya, F. pleniceps, Cephaloziella hyalina, and Campylium protensum are reported new to the state, and an 83 species are reported new for the county. Nearly 40% of the species on this list are considered “rare” and tracked as critically imperiled (S1), imperiled (S2), or vulnerable (S3) by Pennsylvania Natural Heritage Program, highlighting the critical role of intensive surveys for bryophyte conservation.

Leptogium rivulare is a rarely reported boreal-temperate cyanolichen widely distributed in glaciated portions of Asia, eastern North America, and eastern, central, and western Europe, between the 44°N and 60°N parallels. In the USA, its historical range extended as far south as Illinois and Vermont (possibly in glacial refugia) but records from the last 100 years are only from central Wisconsin. Here, we report the first records of L. rivulare in Minnesota from the Boundary Waters Canoe Area Wilderness, and from novel habitat in Ontario, periodically flooded bedrock shoreline of alkaline lakes. In Canada, it is federally listed as Special Concern by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC), and globally as Near Threatened by the International Union for Conservation of Nature (IUCN).

Ardeuma aurantiacum is new to North America from a collection in Florida. Anoectangium stracheyanum is new to Canada from a station in British Columbia. Anoectangium euchloron, a Latin American species, apparently intergrades with A. aestivum in North America.

The lichens of the Tomur Peak National Nature Reserve in Xinjiang, part of the Tianshan Mountain system in northwest China, have been studied for the last 30 years. A historical review of the lichen studies carried out in this region and a checklist for this World Heritage Site is provided. This is based on c. 1800 collected specimens from 35 sites and comprises 150 species, 9 varieties and 9 forms belonging to 62 genera.