Paraphymatoceros pearsonii
Paraphymatoceros pearsonii
Phylum: Anthocerotophyta
Family:
Notothyladaceae
Genus:
Paraphymatoceros
Scientific Name:
Paraphymatoceros pearsonii (M.Howe) J.C.Villarreal & Cargill
| Common Name | Pearson's Phaeoceros |
| Frequency | Rare |
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Distinguishing Features
Similar Species
Habitats
Associated Species
Distribution Map
Relevant Literature
Image Gallery
Distinguishing Features
A rare hornwort with a relatively undissected thallus, it can form large populations of coin-sized matte green plants over seeping fine soils and vernal pools. At maturity the yellowed horns are less than 5cm tall and hold yellow spores.
Similar species
Lacking the bulbils of Phymatoceros bulbiculosus and possessing long yellowed horns at maturity, when immature P. pearsonii could only be mistaken for Phaeoceros oreganus. The distinction is microscopic and based on the colour and ornamentation of the spores.
Habitat
Saturated fine soils in seeps and vernal pools
Associated species
Scleropodium obtusifolium, Rosulabryum sp., Didymodon sp., Timmiella crassinervis
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.