Physcia tenuisecta Zahlbr.
Details
Physcia tenuisecta Zahlbr., Akad. Wiss. Wien, Math.-Naturwiss. Kl., Denkschr. 104: 378 (1941)
Nomenclature
Zahlbr.
Zahlbr.
1941
378
ICN
Physcia tenuisecta Zahlbr.
species
Physcia tenuisecta
Classification
Descriptions
Physcia tenuisecta Zahlbr.
Thallus lobate, rosette-forming, to 2.5 cm diam., closely attached, corticolous. Lobes rather crowded, slender, laciniate, 0.2-0.25 mm wide, stellate-radiating, linear, irregularly or subdichotomously branching, margins uneven, swollen in parts, without cilia, apices rounded or slightly notched, crowded centrally often ± lobulate. Upper surface smooth, ± plane, matt or shining, greenish to brownish-white. Lower surface brownish-black, densely rhizinate. Rhizines brown or black, slightly thickened, simple or branched. Apothecia sessile, constricted at base, scattered, to 0.8 mm diam., disc black or brownish, epruinose, plane, margins thick, entire, concolorous with thallus. Ascospores biseriate, oblongellipsoid, straight or curved, 16-21 × 8-9 µm. Chemistry: Cortex and medulla K+ yellow. Atranorin and zeorin.
Taxonomic concepts
Physcia tenuisecta Zahlbr.
Physcia tenuisecta Zahlbr.
Collections
Metadata
993f7d24-40c3-4c07-b242-e6d29829f895
scientific name
Names_Plants
1 January 2000
25 August 2009