ITALIC 7.0

Cheiromycina globosa Aptroot & Schiefelb.

Mycol. Res., 107, 1: 105, 2003

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Distribution:

Description: Thallus crustose, thinly episubstratic, ecorticate, pale grey, spreading, without a distinct prothallus, somehow resembling the thallus of Lepra albescens. Conidiomata sporodochial, superficial, orbicular, white, excavate to flat, 0.2-0.5 mm across, the tissue hyaline, cellular throughout, the cells with 2–4 µm wide lumina. Conidiophores not evident. Conidia globose to slightly ellipsoid, unicellular, hyaline, smooth, the wall relatively thick (c. 0.5 µm), 4-5.5 mm wide. Photobiont chlorococcoid, the cells 5-15 µm wide. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a recently-described species growing on isolated trees with base-rich or -enriched bark in Xanthorion-communities. The species differs considerably from other congeneric species in conidiogenesis, the form of conidia, and the ecology, and according to Muggia & al. (2017), it likely does not belong to Cheiromycina s. str. The species is known from Central Europe, but it could be present also in Italy, and should be looked for there.

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Predictive model