Guide to Liverworts of Oregon: Lophocolea bidentata (L.) Dumort.
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Chiloscyphus 1b leaves bilobed > Chiloscyphus 3a all leaves with acuminate lobes > Chiloscyphus coadunatus
Synonyms: Chiloscyphus latifolius (Nees) J.J. Engel et R.M.Schust.; Chiloscyphus coadunatus (Sw.) J.J. Engel et R.M. Schust.
Special Status: None.
Recognition: The horizontally-inserted, bilobed leaves with acuminate lobe tips are diagnostic for both Lophocolea coadunata and Lophocolea bidentata, easily recognized under the handlens. The more shallowly lobed leaves of Lophocolea bidentata are distinctly different from the typical plants of L. coadunata.
Distribution: On rock walls packed gravel; usually close to running water; not common. Seen in the Berkeley Botanical garden, California and two localities in the Coast Mountains, Lane County Oregon.
Comments: In most literature prior to 1985, when Engel and Schuster combined Lophocolea with Chiloscyphus, this was known as Lophocolea bidentata. Paton (1999) treated Lophocolea cuspidata as a synonym of Lophocolea bidentata (L.) Dum., without recognizing any subspecific taxa. Doyle and Stotler (2006) and Atherton et al. (2010) follow her example. The recent publication by Stotler and Crandall-Stotler (2017) provides nomenclatural clarity for separating Lophocolea coadunata from Lophocolea bidentata.
Lophocolea bidentata Berkeley Botanical Garden, Alameda Co., California. DHW m0810.
Lophocolea bidentata Cape Perpetua, Lincoln County, Oregon. DHW m3159.
Lophocolea bidentata Cape Perpetua, Lincoln County, Oregon. DHW m3159.
Lophocolea bidentata Cape Perpetua, Lincoln County, Oregon. DHW m3159.
Lophocolea bidentata Cape Perpetua, Lincoln County, Oregon. DHW m3159.