Caloplaca phaeocarpella (Nyl.) Zahlbr.
xxx
Basionym: Data lacking.
Synonyms: Index Fungorum
Type: Krossfjorden: Möllerfjorden, Schotterbank am Südrand der Mayerbreen-Eisbruches; 79°15´N, 12°05´E; auf Treibholz am Ufer. 16.7.1979, J. Hafellner 5997 + 5989; Nordenskiöldland: Reindalen. UTM: WG 2259. 50 m. Detritus on S-exposed slope. 5.8.1986. (US 5541 - xxx).
Barcode: Data lacking.
Coordinates: 79°15´N, 12°05´E
Thallus: endoxylic, up to 5 mm. Apothecia rarely more than 15 together, rather crowded or scattered, sessile, up to 0.5 mm. Disc initially slightly concave, later slightly convex, black with an initial tinge of yellow, later turning more reddish orange. Margin regular, medium thick, up to 40 µm, initially prominent, later almost level with disc, black, more or less shining. Aphithecium with rather few scattered algae, dense, consisting of glutinized hyphae with about 4 µm large lumina. Cortex poorly delimited, paraplectenchymatic, with about 4 µm large cell lumina, thick-walled, with diffuse brown pigment. Parathecium fan-shaped, cells thick-walled, lumina in the periphery about 6 µm long and 3 µm broad, pale to dark brown as the amphithecium, with uneven exernal surface, I-. Hypothecium densely glutinized, hyaline, with or without oil droplets, with cell lumina up to 6 µm. Hymenium 60 µm, with coarse epipsamma. Paraphyses loose, but the individual hyphae surrounded by a up to 4 µm thick gelatinous layer, apically little branched, gradually thicker, up to 4 µm thick. Eventually the tips of the paraphyses ate enclosed in a brown pigmented gelatinous cap, which is produced below the epipsamma. Ascospores: Asci generally with 8 spores. Spores 15.5-17 x 7-8.5 µm. Septa 3-8 µm, mostly about 4 µm thick (Søchting 1989: 252).
Photobiont: Data lacking.
Chemistry: Amphithecium I-. The brown pigment found in the parathecium, the amphithecium and the paraphyse tips is K-, except in the palest parts, where a reddish colouring may occur in K. (Søchting 1989: 252).
Ecology: On lignum, dead leaves and bark It seems to be favored by some eutrophication (Søchting 1989: 252).
Molecular data: Genbank
Distribution: Database
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