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Lichens (1985) - Flora of New Zealand Lichens
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Pertusaria erumpescens Nyl.

P. erumpescens Nyl., Lich. N.Z.: 69 (1888).

Bagliettoa ocellata Knight, T.N.Z.I. 8: 328 (1876).

Holotype: New Zealand. Sine loco (prob. Wellington). Charles Knight, H-NYL 23008!

Bagliettoa ocellata. Lectotype: New Zealand. Sine loco (prob. Wellington). Charles Knight, H-NYL 23008!

Thallus very thin, brownish-grey, often lacking, in indeterminate patches, 1-3 cm diam., abraded or lacking between verrucae, saxicolous. Fertile verrucae conical to ± hemispherical, round to irregular 0.2-1.0 mm diam., rather sparse, smooth, shining, fawn or brownish. Apothecia immersed, 1-4 per verruca, ostiole minute, pin-prick-like to ± disciform, to 0.1 mm diam., blackened, verrucae often surrounded by a thin, wavy, blackened prothallus. Asci 8-spored. Ascospores uniseriate to biseriate, oval-ellipsoid, 34-42.3 × 11.9-17 µm, wall 3-4 µm thick. Chemistry: K+ yellow → red, C-, KC+ red, Pd+ orange. Norstictic and connorstictic acids.

N: Known only from the type collection.

Endemic

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