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Polycoccum rugulosarium (Linds.) D. Hawksw.

Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. (01-09-05). Data set reviewer(s): Triebel D.; revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Polycoccum. Dacampiaceae Körb. (1855); Dothideales.

Taxonomic Literature: Hawksworth D.L. & Diederich P., Trans. Brit. Mycol. Soc. 90: 293-
312 [304] (1988).

Biogeography: Northern hemispheric, antarctic. Continent: Antarctica and Australasia. Region(s): Australia, Subantarctic Islands, and Antarctic Continent. Country or state(s): Tasmania; Antarctica (governed by Antarctic Treaty; 45 treaty member nations including seven nations that claim portions of Antarctica as national territory: Argentina, Australia, Chile, France, New Zealand, Norway, UK) (including South Orkney Is and Bouvetoya).

Ecology: Biotroph; lichenicolous. Host or Phorophyte Taxonomy: Caloplaca cirrochrooides, C. regalis, C. rugulosa, C. sublobulata.

Thallus: Indistinct.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, forming inside the thallus or mycelium of the host, within the ascocarp margin of the host or within the ascocarp disks of the host, not emerging, becoming adnate (sometimes to 1/4 erumpent at maturity), (50)-75-100-(180) µm wide. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed; cells 3-4 µm wide.

Asci: Clavate (elongate), 60-80 µm long, 17-20 µm wide; dehiscence bitunicate.

Ascospores: Not uniseriate (irregularly biseriate), c. 8 per ascus, spores 8 per ascus, ellipsoid, (10)-12-15-(16) µm long, (4)-4.5-6-(6.5) µm wide; septa present; transversally septate, 1-transversally septate; lumina of equal size or slightly apically enlarged, constricted at the centre; wall becoming pigmented, dark brown or middle brown, ornamented (weakly verruculose).

(report generated 04.Okt.2007)

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