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Phloeopeccania J. Steiner (1902)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 3. Phloeopeccania. Lichinaceae Nyl. (1854); Lichinales.

Type Information: Type: Phloeopeccania pulvinulina J. Steiner.

Taxonomic Literature: Taxonomic notes: the year of publication of the Steiner work is often (erronously) given as 1903 or 1903("1902"). Henssen, A., Ber. Deutsch. Bot. Ges. 92: 483-506 (1980)["1979"] Henssen, A., Lich. cyan. et fungi saxic. exs., fasc. II, nos. 26-50 (1990) Henssen A. & Jørgensen P.M., Lichenologist 22: 137-147 (1990); Steiner J., Denkschr. Kaiserl. Akad. Wiss., Math. Naturwiss. Kl. 71: 93-102 (1907); Vezda A., Folia Geobot. Phytotax. 14: 203-206 (1979) - sub Pyrenopsis sojakii.

Ecology: Biotroph; lichenized; substrate non-calciferous or calciferous.

Lichen Photobionts: Primary photobiont present; cyanobacterial. Primary photobiont taxonomy: genus incertae sedis (unknown); family of unknown placement (incertae sedis) (unknown), Cyanobacteria, Prokaryota. Secondary photobiont absent.

Thallus: Crustose or foliose, squamulose, subfruticose, or areolate (primarily areolate), umbilicate. Thallus Outline: Soon disappearing. Upper Surface: Black or grey (sometimes); special structures absent or present:; not pseudocyphellate; eciliate; without hairs; not isidate or isidiate; not sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface (or by small umbilicus); special structures absent; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Medulla: Iodine reaction in Lugol's solution negative; not different with or without KOH pre-treatment (euamyloid).

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid or perithecioid, orbicular, forming all across the thallus surface, soon sessile to substipitate. Wall: Not carbonized, not fused. Margin: Distinct; external filaments absent. Exciple: White. Periphyses: Absent. Epithecium: Apical cells brownish yellow. Hymenium: Iodine reaction: Lugol’s negative (uncertain), hemiamyloid (uncertain). Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White.

Asci: Tholus not thickened, not amyloid; dehiscence prototunicate; exoascus not amyloid, hemiamyloid (uncertain).

Ascospores: c. 8 to 16-32 per ascus, globose or broadly ellipsoid, 6-7 µm long, 6-7 µm wide, obtuse; septa absent; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; immersed, formed along the thallus periphery.

Conidiogeneous Cells: Apical. Conidia: Ellipsoid; microconidial, not branched; aseptate; cell wall hyaline.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)

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