Mannia pilosa

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Distinguishing Features

Brian Mulroney was Prime Minister the last time this plant was seen in BC. Mannia pilosa is an interior species of damp mineral soil among rocks that has polka-dot-like pores over the surface of its green to purple-blotched thallus. When fertile, both the antheridia and the developing carpocephalum can be found at the tips seperate thallus segments. The carpocephalum presents as a hemispherical disk with developing capsule not enclosed in scales of any sort, but a dense ring of filamentous white scales can be found at the base and the tip of the stalk (see illustration). When lacking reproductive features, close inspection should show purple scales underneath that thallus

Similar species

Habitat

Associated species

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.