The crustose species of Normandina (Verrucariaceae)

Abstract

AbstractNormandina acroglypta, as recently circumbscribed, is shown to comprise two species: N. acroglypta s. str. with subsquamulose marginal areoles, two unidentified terpenoids by thin-layer chromatography, and growing over rock; and N. chlorococca, with convex marginal areoles, zeorin or no substances detected by thin-layer chromatography, and growing over bark. Normandina dictyospora is newly described from the Falkland Islands and is characterized by relatively large, submuriform ascospores, and no substances detected.