Herpothallon purpureum Aptroot & M.F. Souza, 2021

Aptroot, André & Souza, Maria Fernanda, 2021, New crustose lichens from a tropical coastal area in Paraná (Brazil), Cryptogamie, Mycologie 20 (12), pp. 191-197 : 192-194

publication ID	https://doi.org/ 10.5252/cryptogamie-mycologie2021v42a12
DOI	https://doi.org/10.5281/zenodo.7815217
persistent identifier	https://treatment.plazi.org/id/03B8746C-FFED-FF9F-F169-F94FFF24F86A
treatment provided by	Felipe
scientific name	Herpothallon purpureum Aptroot & M.F. Souza
status	sp. nov.

Treatment

Herpothallon purpureum Aptroot & M.F. Souza , sp. nov.

( Fig. 1G, H View FIG )

Foliicolous sterile Herpothallon with thallus grey mottled with purple, containing chiodectonic acid, surrounded by a dark purple prothallus line, pseudoisidia globose, 0.1-0.2 mm diam. and high, purple, in dense clusters.

MYCOBANK. — MB839447.

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. 155 m, on dead palm frond, M.F. Souza & A. Aptroot 264 (holo-, CGMS; iso-, ABL).

CHEMISTRY. — Thallus C-, UV-, P-, K+ blood red, with chiodectonic acid, demonstrated in tlc.

DESCRIPTION

Thallus epiphyllous and hypophyllous, grey mottled with purple, concentrically streaked with paler and darker patches, dull, floccose, easily removed from the substratum, covering an area of up to 6 cm diam., surrounded by a c. 0.5 mm wide dark purple prothallus line. Lower surface dark, purple, with red pigment in addition to the purple colour. Algae trentepohlioid, orange, c. 10-15 µm diam. Pseudoisidia present in the central part of the thallus, globose, 0.1-0.2 mm diam. and high, purple, in dense clusters. Soralia, ascomata and pycnidia not observed.