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Cecidioskyttea Etayo (2004)

Data Set Maintenance: Data set standard item. Data set author(s): Scholz P. Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 1. Genus of unknown placement (incertae sedis); Leotiales.

Type Information: Type: Cecidioskyttea osorioi Etayo.

Taxonomic Literature: Etayo J. & Osorio H.S., Com. Bot. Mus. Nac. Hist. Nat. Antrop. 6(129): 1-19 (2004).

Ecology: Biotroph; lichenicolous.

Lichen Photobionts: Primary photobiont absent.

Thallus: Indistinct (gall-forming).

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

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid or perithecioid, orbicular or irregular, soon sessile (in galls), stromatic. Wall: Carbonized only in parts, fused. Margin: External filaments absent. Exciple: White. Periphyses: Absent. Epithecium: Apical cells hyaline. Hymenium: Iodine reaction: Lugol’s positive, not hemiamyloid. Interascal Hyphae: Present, not or scarcely anastomosed. Hypothecium: White.

Asci: Tholus thickened, not amyloid; dehiscence unitunicate; exoascus not amyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, ellipsoid or fusiform (ellipsoid-), 9-11.5 µm long, 2.5-3.5 µm wide, obtuse; septa absent; wall thin, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Present; pycnidial (in galls between ascomata); immersed, formed all accross the thallus surface.

Conidia: Ellipsoid, fusiform, or curved; macroconidial, not branched; septate; 0-5-septate; cell wall hyaline.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)


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