Recent literature on bryophytes — 118(3)

Abstract

The rare mosses, Aloina bifrons, Bryoerythrophyllum columbianum and the rare lichen, Texosporium sancti-jacobi were searched for on seven parcels in the Columbia Basin of Oregon managed by the Bureau of Land Management. Surveys using intuitive-controlled meander found B. columbianum on all parcels, Aloina bifrons on three parcels, and Texosporium sancti-jacobi was not found. Umatilla Butte has the best habitat for biological soil crusts and the site most likely to harbor T. sancti-jacobi because of patches of pristine habitat and the presence of the late successional soil crust Acarospora schleicheri. Two moss species new to Oregon, Tortula inermis and T. protobryoides, were found in Juniper Canyon. The rare mosses Didymodon norrisii and D. eckeliae were found on five parcels. Thin, fine-grain soil and rock support the best diversity of bryophytes and lichens, however the trampling of cattle and invasive cheatgrass, Bromus tectorum, significantly compromise most areas.