Gymnomitrion obtusum

Phylum: Marchantiophyta

Family: Gymnomitriaceae

Genus: Gymnomitrion

Scientific Name: Gymnomitrion obtusum Lindb.

Common Name	Blunt frostwort
Frequency	Frequent

Image Gallery Distinguishing Features Similar Species Habitats Associated Species Distribution Map Relevant Literature

Image Gallery

Distinguishing Features

Thriving on vertical rock faces, G. obtusum presents itself in dense tufts of downtrending white, wormy shoots up to 1 mm wide by centimeter(s) long. With a hand lens you should be able to make out individual bilobed leaves tightly overlapping one another on all sides (“imbricate”). The tips of the lobes in this species are rounded, the lobes themselves joining about 1/3 down the length of the leaf in a sinus that is sharply-angled.

Similar species

See table

Habitat

Dry to moist, usually sheltered cliffs, rock faces, ledges, crevices, boulders, and soil (rare) in the lowland, montane, and subalpine zones

Associated species

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Distribution Map

Relevant Literature

Godfrey, J.D. (1977). Hepaticae and Anthocerotae of southwestern British Columbia . [Doctoral dissertation, University of British Columbia]. UBC cIRcle.
Hong, W. S. (2007). Scapania. In Flora of North America Editorial Committee (Eds.), Flora of North America North of Mexico (Vol. 3) . Oxford University Press.
Wagner, D. H. (2013). Guide to the liverworts of Oregon: Scapania undulata . Oregon State University Herbarium.