Guide to Liverworts of Oregon: Riccia campbelliana M.A. Howe
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Riccia 1b terrestrial > Riccia 2b marginal projections lacking > Riccia 5b surface smooth > Riccia 7b upper surface groove shallow > Riccia 8b ventral scales pale > Riccia 9b shallow dorsal groove present > Riccia campbelliana
Synonym: None.
Special Status: None but possibly deserving attention. First it will be necessary to give proper attention to searching for ephemeral liverworts.
Recognition: Thallus lacks spines on margins; margin of thallus with orange tinge.
Distribution: On seasonally moist soil; to date confined to SW Oregon.
Comments: Dave Kofranek has reported finding this on Table Rock in Jackson County.
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Wagontire Rock, Monterey Co., California. DHW m1235b
Riccia campbelliana. Proximal lower left, side view at top, distal aspect right. Kingston Prairie Preserve, Marion Co., Oregon. D. Thomas 13816.
Riccia campbelliana. Proximal upper left, others distal aspect. Kingston Prairie Preserve, Marion Co., Oregon. D. Thomas 13816.
Riccia campbelliana. Distal aspect. North Table Mountain, Butte County, California. Doyle 2006 (UC).
Riccia campbelliana. Proximal aspect. North Table Mountain, Butte County, California. Doyle 2006 (UC).
Riccia campbelliana. Side view. North Table Mountain, Butte County, California. Doyle 2006 (UC).