Flavoparmelia baltimorensis

Rock greenshield lichen
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Parmeliaceae
Genus: Flavoparmelia
Species: F. baltimorensis
Binomial name
Flavoparmelia baltimorensis
(Gyeln. & Fóriss) Hale, 1986
Synonyms

Parmelia baltimorensis Gyeln. & Fóriss

Flavoparmelia baltimorensis or Rock greenshield lichen (from Lichens of North America) is a medium to large foliose lichen with a yellow green upper surface when dry; lobes rounded without pseudocyphellae; the upper surface with globose, pustule-like growths resembling isidia. Lower surface is black with a narrow brown zone at the margins.

Chemistry

Cortex, PD-, K-, KC+ yellowish, C- (usnic acid).
Medulla, PD+ red-orange, K-, KC+ pink, C- (protocetraric acid, with or without gyrophoric acid)

Habitat

On rock in shaded or exposed areas.

Similar species

The very similar, Flavoparmelia caperata, usually grows on the bark of trees, but may be found on rock. The granular soredia produced in irregular soralia distinguishes it from F. baltimorensis which lacks true soredia.

Flavopunctelia flaventior and Flavopunctelia soredica have pseudocyphellae in the upper surface of the thallus, and the medulla is C+ red.

Lichen checklists containing Flavoparmelia baltimorensis

References

This article is issued from Wikipedia - version of the 11/12/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.