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Schistidium agassizii is confirmed for Pennsylvania, after an earlier report of the species from the commonwealth was found to be misdetermined. The new collection was made from rocks within and along a stream in Fayette County, southwestern Pennsylvania.
A lichen diversity survey of White Pine Hollow State Preserve in Dubuque County, Iowa, revealed the presence of 117 different lichens including 13 previously unrecorded for the state of Iowa, 72 previously unrecorded for Dubuque County, and one recorded in Iowa on only one prior occasion. This increases the number of lichens reported for the state of Iowa to a total of 478 and the number recorded for White Pine Hollow to 123. Lobaria pulmonaria (L.) Hoffm., an old-growth specialist that is facing declines around the globe, was not amongst the lichens observed although one of the last known collections (1901) of this lichen in Iowa occurred at White Pine Hollow. Efforts to propagate L. pulmonaria in a greenhouse setting as a means of providing insight to whether a reintroduction might be feasible were unsuccessful.
The bryophytes of Carlsbad Caverns National Park were collected and inventoried. A total of 41 bryophyte species were found including 38 moss species in eight families, and three liverwort species in two families. No hornworts were found. The liverwort Riccia atromarginata Levier is reported new for New Mexico. We provide the first photographs of Mannia paradoxa Schuster, collected by Schuster at the park in 1982. Since water is a limiting factor for life in much of the park, we initially assumed that the many natural springs in the area would provide the most diverse habitats. In fact, the seasonally flooded arroyos and north-facing limestone cliffs together proved to have more bryophyte diversity than the springs. A brief biography of Gilford J. Ikenberry is included.
During lichen surveys conducted in Terra Nova National Park, Newfoundland and Labrador, two new calicioid lichen species for the province were discovered, increasing the number of known calicioid species in the province to 35. One of the species, Chaenotheca brachypoda, was previously known in the Maritimes provinces, Ontario, and British Columbia within Canada. The other species, Sclerophora peronella, was known from Nova Scotia, Quebec, and British Columbia within Canada and is listed under Schedule 1 of the Canadian Species At Risk Act as Special Concern. A key to the calicioids of Newfoundland and Labrador is provided. Additional survey efforts should be made in the rest of the province to better understand each species' distribution.