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Phaeophyscia nigricans (Flörke) Moberg

Data Set Maintenance: Data set standard item. Data set author(s): Moberg R. (95-01-25). Data set to be published after submission; 95-01-25.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Phaeophyscia. Physciaceae Zahlbr. (1898).

Taxonomic Literature: Moberg R., J. Hattori Bot. Lab. 76: 173-181 (1994).

Biogeography: Continent: Asia-Temperate, Europe, and Northern America.

Ecology: Corticolous.

Thallus: Crustose, subfruticose; separate thallus parts.5 mm wide. Thallus Size and Differentiation: 10 cm in diameter; apex not distinctly broader than average; curved upwards. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: Brown, smooth; eciliate; without hairs; isidiate; not lobulate. Lower Surface: White or brown, loosely attached attached; rhizines sparse, without projections.

Lower Cortex: Paraplectenchymatous, of anticlinal hyphae.

Ascocarps: Sparse, 1 mm in diam.. Margin: Crenulate, smooth.

Ascospores: Physcia-type, (15)-16-22-(28) µm long, (6.5)-7-10-(12) µm wide.

Conidiomata: Sparse.

(report generated 13.Nov.2007)

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