There are 323 species and varieties of mosses in Missouri. Their distributions within the state are given at the county level based on Missouri collections examined by the author (deposited in ALTA, MO, NY, PH, S, SMS, UBC, UMO, US) as well as a literature survey on mosses reported from Missouri. The great majority of the collections examined in this study are deposited at the Missouri Botanical Garden (MO). The genera in the checklist are arranged alphabetically; within each genus the species and varieties are arranged alphabetically. Generic family placement is indicated (in parentheses) after each genus entry. A separate listing of the Missouri moss families and their genera, arranged alphabetically, is included. Twenty-one mosses were newly documented for Missouri during this study.

We present a collections-based checklist for bryophyte and lichen species known or expected to occur within the boundaries of Malheur National Forest, an administrative unit spanning several climatic zones and vegetation types in the semi-arid Blue Mountains of eastern Oregon. A synthesis of survey, literature and herbarium records yielded 2 hornwort species, 51 liverworts, 219 mosses and 276 lichens. Notable bryophytes included: Anoectangium aestivum, Bruchia bolanderi, Bryum calobryoides, Calliergonella lindbergii, Racomitrium depressum, Fontinalis hypnoides, Preissia quadrata and Schistidium cinclidodonteum. Notable lichens included: Lecanora pringlei, Peccania arizonica, Placidiopsis cinerascens, Schaereria dolodes and 6 calicioid lichens. We also provide conservation notes and conclude with a brief synopsis of collecting history in the region.

A new survey of liverworts in three tropical hardwood hammocks in South Florida 100 years after they were first surveyed by John Kunkel Small found that the liverwort flora is mostly intact. The new survey collected 24 species, recollecting eight of the 13 species first collected by Small in these hammocks. Some taxa not noted by Small are xerophytic species that may have colonized the hammocks since Small's time. Epiphyllous species are a characteristic and noteworthy component of the hammock liverwort flora; eight taxa were found in this survey.