Kingdom Fungi Rank Species | ||
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Scientific name Flavoparmelia baltinsis Similar Flavoparmelia, Flavoparmelia caperata, Pseudoparmelia, Flavopunctelia, Ahtiana | ||
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.
Contents
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.