E-Flora BC: Electronic Atlas of the Flora of British Columbia

Parmeliopsis hyperopta (Ach.) Arnold
Grey starburst

Introduction to the Lichens

© Jim Riley  Email the photographer   (Photo ID #12470)

E-Flora BC Static Map
Distribution of Parmeliopsis hyperopta
Details about map content are available here
Click on the map dots to view record details.

Consortium of North American Lichen Herbaria map

Species Information

Common Name: The Starburst Lichens. Describes the centrifugal growth pattern characteristic of the species.
Small stratified foliose lichens, corticate above and below, sorediate, lobes closely appressed, elongatelinear to elongate, averaging to 1–2 mm wide, thin. Upper surface whitish grey or pale yellowish green, more or less shiny, especially at lobe tips. Lower surface pale brown to blackening, bearing short, simple rhizines. Medulla white. Photobiont green.
Apothecia located over upper surface, disc brown; spores simple, sausage-shaped, colourless, 8 per ascus.
Notes: Parmeliopsis is a boreal–temperate genus consisting of three species worldwide. All of these occur in North America, though only two are present in B.C.
Species description:
Upper surface whitish; soredia present or absent AND
Isidia absent; soredia present; over bark or rock AND
Upper surface somewhat shiny near lobe tips; over acid bark; medulla KC+ rose
Cortex K+ yellow.
Atranorin and divaricatic acid.

Source: Lichens of British Columbia

Habitat / Range

Habitat: Common over trees and shrubs, especially conifers, also rare over acid rock in open to shady forests throughout
World Distribution: circumpolar, N to AK, S to CO.

Source: Lichens of British Columbia

Synonyms and Alternate Names

Foraminella hyperopta (Ach.) S. F. Meyer
Parmeliopsis diffusa (Weber) Riddle

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links

Additional Photo Sources

General References