Wirthiotrema xanthopustulatum Aptroot & M.F.Souza
- Dataset
- GBIF Backbone Taxonomy
- Rank
- SPECIES
- Published in
- (2021). Cryptog. Mycol. 42(12): 176.
Classification
- kingdom
- Fungi
- phylum
- Ascomycota
- class
- Lecanoromycetes
- order
- Ostropales
- family
- Graphidaceae
- genus
- Wirthiotrema
- species
- Wirthiotrema xanthopustulatum
description
(Fig. 1 I, J) Corticolous sterile Wirthiotrema with thallus pale olivaceous metallic green, shiny, containing lichexanthone and protocetraric acid, pustules delimited, soredia globose to short ellipsoid, filled with small crystals, c. 45 - 100 µm diam. MYCOBANK. — MB 839449.
description
DESCRIPTION Thallus corticolous, pale olivaceous metallic green, shiny, thin, IKI negative, covering an area of up to 10 cm diam., without prothallus line, but lower surface a continuous dark brown hypothallus. Algae trentepohlioid, green, c. 10 - 14 µm diam. Pustules delimited, of thallus colour or somewhat paler, starting as semiglobose c. 0.2 mm diam. warts, aggregating into mostly stalked, c. 0.5 - 2.0 mm diam, c. 0.5 - 1.7 mm high clusters, covering about quarter of the thallus surface. Soredia developing on top of abraded pustules, irregularly globose to short ellipsoid, IKI negative, filled with small crystals, c. 45 - 100 µm diam. Ascomata and pycnidia not observed.
materials_examined
TYPE. — Brazil, Paraná, Guaraqueçaba, Tagaçaba Porto da Linha, road PR- 405 km 36.2, at right side of road, in chácara (property of Donald Schause), 14. X. 2020, alt. 15 m, on tree bark, A. Aptroot & M. F. Souza 82093 (holo-, CGMS; iso-, ABL). CHEMISTRY. — Thallus and pustules C-, UV + yellow, K-, P + red, with lichexanthone and protocetraric acid, demonstated in tlc.