During April 2022, bryological inventories of arable lands in the Peterborough Ecodistrict of Ontario, Canada, resulted in the detection of a population of Ephemerum recurvifolium (Dickson) Boulay. Specimens were collected and confirmed, and vouchers were provided to the National Herbarium of Canada (CANM). This species of moss has not been reported previously in North America. Its detection raises the question whether it is native or adventive on the continent, finding an answer to which will require more extensive field inventories, studies of herbarium material and population genetics research.

Three liverworts and two mosses are reported new to Virginia based on specimens collected in Giles, Patrick, Smyth, and Scott counties from 2016 to 2022. Of these taxa, Acrobolbus ciliatus, Lejeunea blomquistii, Plagiochila echinata, and Blindia acuta occur in gorge habitats while Polytrichastrum appalachianum occurs in a high-elevation area. These taxa are either restricted to the Southern Appalachian region or have a disjunct distribution with occurrences concentrated in the area. Additionally, the liverworts Drepanolejeunea appalachiana and Sphenolobopsis pearsonii were rediscovered decades after their first and only reports in Virginia. With the exception of Blindia acuta, these species have a moderate to high risk of extinction according to NatureServe and the Natural Heritage network (NatureServe 2023).

We explored the drivers of lichen taxonomic diversity and lichen abundance on wooden trailside benches within the city of St. John's, Newfoundland and Labrador, to better understand lichen colonization of wooden structures. We examined three variables including the age of each bench, the distance of each bench from the nearest tree with lichens, and the distance of each bench from the nearest road. Multivariate analyses and model selection using AIC revealed that bench age and distance from the nearest tree with lichens together was best at explaining the sample data. Age of the benches was of greatest significance for predicting both lichen diversity and abundance. Understanding factors that drive the distribution and colonization of species across urbanized landscapes is important for conservation efforts and for preserving biodiversity in the future.

Vinealobryum eckeliae (R.H. Zander) R.H. Zander is a poorly understood moss species native to the west coast of North America and Spain. Since its description in 2007, the number of collections in North America has more than doubled, providing valuable data regarding the species' phenology, morphology, ecology, and distribution. An analysis of 75 specimens has confirmed the plant to be dioicous with sporophytes maturing predominantly in the spring and summer. Reproductive specimens were used to produce ranges for sporophyte characters, and non-reproductive specimens were used to investigate gametophyte morphological patterns that were not previously reported. Micrographs were captured to present both gametophytic and sporophytic features of the moss. Label data extracted from the Consortium of North American Bryophyte Herbaria were used to update the species' habitat preferences and distribution. A dichotomous key to the genus Vinealobryum of California is provided.

Orthotrichum pallens had been previously reported from Oregon as new to the state.