The Big Ivy section of Pisgah National Forest in North Carolina was surveyed to produce a baseline bryophyte species list. Big Ivy is a minimally disturbed 5700-hectare mature forested headwaters tract in the heart of the botanically rich Southern Appalachian Mountains and has not previously been surveyed for bryophytes. From twenty sites representing common and unique habitats, roughly 5000 specimens were examined and 735 were retained. Two hundred sixty-six species were identified, including 182 mosses, 83 liverworts, and one hornwort, representing 38% of the 692 bryophyte taxa estimated to occur in North Carolina. Twenty-seven species are listed as rare in the state. Four are new or recent finds for the southeastern United States: Fissidens closteri, Ptychomitrium serratum, Schistidium papillosum, and Zygodon viridissimus. Habitats notable for exceptional diversity and rare species include montane alluvial forest, fog-prone high ridges, rocky tumbling streams, and a 20 m waterfall over a wet rockhouse.

The globally rare epiphyte Erioderma pedicellatum is reported for the first time from Québec and the saxicolous Parmelia fraudans, uncommon in eastern North America, is reported for the first time from Nova Scotia.

Dickinson Park is a difficult-to-access remote subalpine parkland in the Shoshone National Forest of Wyoming; it is located on the east slope of the Wind River Range (Central Rocky Mountains), immediately south of the Wind River Indian Reservation. The area has never been previously visited by bryologists. As a result of a bryological inventory conducted in the Park in 2012 (and subsequent laboratory research through 2019), 121 species, three subspecies, and five varieties were documented by voucher specimens. Of this total, 17 species, three subspecies, and two varieties are hepatics and 104 species and three varieties are mosses. The bryophyte checklist is presented, based on 990 specimens from 35 sites, collected by the author. Fourteen species of mosses have not previously been reported for Wyoming in the Flora of North America North of Mexico. There are 89 taxa (10 species, two subspecies, and one variety of hepatics and 74 species and two varieties of mosses) that are reported new for Fremont County. Three regionally rare species are documented on intact habitat sites of eutrophic fens located within the Park, Meesia triquetra, Paludella squarrosa, and Sphagnum angustifolium; their distribution in Wyoming is updated, based on recent publications and new herbarium materials.

One hundred five species of lichenized and allied fungi are reported from recent and historical collections made in the Mitchell Mill State Natural Area in northeastern Wake County, North Carolina, USA. Mitchell Mill is unique among granitic flatrock communities in the southeastern United States by having riparian elements from the Little River, which flows directly over the flatrock, supporting semi-aquatic lichen communities along creek edges represented by species in Dermatocarpon, Verrucaria, and Lichinales. Recently described or renamed species Cladonia ignatii, Lecanora provertula and Phyllopsora isidiosa were found in recent collections. Compared to historical records, 38 taxa including five of six species of large cyanolichen were not found in recent visits, indicating a loss of diversity over the past 100 years, likely due to human activities.