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Sphaerophorus Pers. (1794)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Wedin M. (95-11-27); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 3. Sphaerophorus. Synonyms: Thysanophoron Stirt.; Sphaerophoraceae Fr. (1831); family of unknown placement (incertae sedis); Lecanorales.

Type Information: Type: Sphaerophorus coralloides Pers., nom. illeg. (= S. globosus (Huds.)

Taxonomic Literature: Ohlsson K., A revision of the lichen genus Sphaerophorus. Thesis.
Michigan State University; Clauzade G. & Roux C., Bull. Soc. Bot.
Centre-Ouest N.S. - Numero Special 7: 1-893 [710] (1985); Galloway
D.J., Flora of New Zealand Lichens: i-lxxiii, 1-662 [578-579],
Wellington (1985) - sub Thysanophoron; Purvis O.W. in: Purvis O.W. et
al. (eds), The Lichen Flora of Great Britain and Ireland, London
(1992); Tibell L., Beih. Nova Hedwigia 79: 597-713 (1984); Wedin M.,
Pl. Syst. Evol. 187: 213-241 (1993); Wedin M., Symb. Bot. Upsal.
31(1): 1-102 [91-96] (1995).

Biogeography: Checklist records: Austria, Germany, Great Britain, Italy, New Zealand, Sweden and Norway, United States and Canada (continental), and Republic of South Africa.

Ecology: Biotroph; lichenized; terricolous, lignicolous, or corticolous; substrate non-calciferous.

Lichen Photobionts: Primary photobiont present. Secondary photobiont absent or present.

Thallus: Crustose or fruticose, not subdivided parts, subfruticose or rimose. Thallus Outline: Soon disappearing. Upper Surface: Grey, green, brown, white, or brownish yellow; special structures absent or present:; not pseudocyphellate; eciliate; without hairs; not isidate or isidiate; not sorediate; not cephalodiate or cephalodiate; not lobulate or lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by holdfasts; special structures absent or present:; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose or tomentose.

Medulla: Iodine reaction in Lugol's solution negative or in Lugol's solution positive; 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, orbicular, forming directly at the tip of the thallus parts, soon sessile to stipitate. Margin: Indistinct to prominent. Exciple: Black. Periphyses: Absent. Hymenium: Mazaedioid. Interascal Hyphae: Present. Hypothecium: Black or brown.

Asci: Tholus not thickened; dehiscence prototunicate.

Ascospores: c. 8 per ascus, broadly ellipsoid, 8-12 µm long, 7-11 µm wide, obtuse; septa absent; wall not thickened at the septum, dark brown, in Lugol's Solution negative, wall ornamented.

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

Conidiogeneous Cells: Apical or intercalar. Conidia: Globose.

Secondary Metabolites: Present, of the following substance class(es): orcinol depsides, ß-orcinol depsides, and (anthra-)quinones.

(report generated 04.Okt.2007)

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