Leptogium cyanescens (Rabenh.) Körb.
Details
Leptogium cyanescens (Rabenh.) Körb. (1855)
Leptogium cyanescens (Rabenh.) Körb.
Nomenclature
Classification
Subordinates
Associations
Descriptions
Leptogium cyanescens (Rabenh.) Körb.
Thallus lobate, flat, attached loosely to substrate by scattered tufts of hairs, spreading, orbicular to irregular, 1-5(-8) cm diam., greyish-blue to olive greenish, corticolous. Lobes orbicular, 2-4 mm wide, margins entire, wavy, ± ascending to dentate-isidiate. Upper surface smooth to occasionally slightly roughened, not wrinkled or plicate, isidiate. Isidia abundant, laminal, granular-furfuraceous, cylindrical to clavate to lobulate, often branching, concolorous with thallus. Lower surface glabrous, smooth, concolorous with upper surface or paler, to ± greyish-fawn. Apothecia rare, sessile, to subpedicellate, laminal, 0.5-2 mm diam., disc concave to convex, pale brown to red-brown, thalline exciple entire to isidiate, pale grey to fawn. Ascospores ellipsoid, apices rounded or pointed, 18-27 × 6-10 µm.
Taxonomic concepts
Collema cyanescens Rabenh.
Leptogium cyanescens (Rabenh.) Körb.
Leptogium cyanescens (Rabenh.) Körb.
Leptogium cyanescens (Rabenh.) Körb.
Leptogium cyanescens (Rabenh.) Körb.
Leptogium rigens Nyl.
Leptogium cyanescens (Rabenh.) Körb.
Collections
Metadata
14f998ff-1a4a-4237-aa9e-c8d8e817b184
scientific name
Names_Plants
1 January 2000
18 March 2009