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Frullania selwyniana Pearson was historically recorded from only two localities in Minnesota, and was last seen in 1925. The species became listed on the Region 9 Sensitive Species List (USDA Forest Service 2007) as it is a North American endemic and rare throughout its range. We recorded it in 2001 on the Superior National Forest during a Forest-wide baseline bryophyte inventory. During a dedicated survey in 2008 throughout the Superior National Forest and adjacent areas we have now located 165 populations within 19 widely separated forested stands. Most of the sites are within highly paludified white cedar swamps (i.e., with significant Sphagnum cover). However, several records are from cedar trees in ecotones between upland and lowland cedar mesohabitat, or in mixed hardwood-conifer or shrub-conifer swamps. It appears that the patches tend to be found on the upward-facing bark of leaning trees, usually directed toward some canopy opening. In addition to being overlooked inland from the shore, it has apparently recovered quite dramatically from its earlier restricted occurrence of nearly a hundred years ago. Most likely this is related to the recovery and aging of white cedar stands after restrictions to earlier logging practices went into effect.
Buellia wheeleri is newly reported from a number of locations throughout the southeastern Coastal Plain of North America (e.g., Alabama, Arkansas, Georgia, Tennessee, Virginia, and the Delmarva Peninsula of Maryland). This distinctive species was previously known in North America only from a handful of collections in Florida and North Carolina.
Maryland is a middle Atlantic seaboard state. It is the ninth smallest state in the Union (10,460 sqare miles). The State is geologically complex and contains parts of five physiographic provinces: Coastal Plain; Piedmont; Blue Ridge; Ridge and Valley; Appalachian Plateau. The last checklist of Maryland mosses was compiled in 1949. The present checklist-with 47 families, 126 genera, 334 taxa-is based on the examination of more than 5,000 collections as well as a survey of the literature on Maryland mosses. The checklist is arranged alphabetically by family; distribution of the taxa is documented at the county level. Baltimore County has the most, while Somerset County has the least recorded taxa. This checklist includes 98 taza reported for the first time from Maryland.
The importance of waterfalls and Whitewater for lichen diversity is well known among field lichenologists but seldom has it been documented in the literature. We call attention here to a string of occurrences of eleven regionally rare lichens from waterfalls in inland British Columbia. Pseudocyphellaria mallota is reported as new to British Columbia and Haematomma ochroleucum new to Idaho. Psoroglaena stigonemoides is new to North America.