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

Peltigera venosa (L.) Hoffm.
Lesser toad pelt

Introduction to the Lichens

© Jim Riley  Email the photographer   (Photo ID #12625)

E-Flora BC Static Map
Distribution of Peltigera venosa
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Consortium of North American Lichen Herbaria map

Species Information

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Illustration By: Trevor Goward

Species description:
Photobiont a lime-green to grass-green alga; upper surface generally greenish, especially when wet (Note: check sheltered lobes); wart-like cephalodia sometimes present over upper or lower surface AND
Cephalodia absent over upper surface; upper surface smooth AND
Thallus attached to substrate at single point along margin; veins darkening, generally highly contrastive with pale interspaces; apothecia present, situated near lobe margins, never sunken
The cephalodia of P. venosa may become detached and develop into the tiny, Leptogium-like lobules often found growing at the base of this species.
Green phototype: phlebic acid A and B, tenuiorin, zeorin and one unidentified substance (Kurokawa et al.1966); blue-green phototype: no lichen substances reported (T√łnsberg and Holtan-Hartwig 1983).

Source: Lichens of British Columbia

Habitat / Range

Habitat: Frequent over base-rich soil, especially cut banks, in open or somewhat sheltered sites throughout
World Distribution: circumpolar, S to CA.

Source: Lichens of British Columbia

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