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Dolichocarpus R. Sant. (1949)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Tehler A. (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: 1. Dolichocarpus. Roccellaceae Chevall. (1826); Arthoniales.

Type Information: Type: Dolichocarpus chilensis R. Sant.

Taxonomic Literature: Santesson R., Svensk Bot. Tidskr. 43: 547-567 (1949); Tehler A., Can. J. Bot. 68: 2458-2492 (1990).

Ecology: Biotroph; lichenized; corticolous.

Lichen Photobionts: Primary photobiont present; trentepohlioid. Secondary photobiont absent.

Thallus: Fruticose, not subdivided parts. Upper Surface: Grey or brownish yellow; special structures absent. Lower Surface: Attached by holdfasts; special structures absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, forming all across the thallus surface, not emerging. Margin: Indistinct. Epithecium: Apical cells brown. Interascal Hyphae: Present, scarcely branched to distinctly branched, not or scarcely anastomosed. Hypothecium: White.

Ascospores: c. 8 per ascus, oblong, cylindrical, fusiform, or oblong-obtuse, 20-25 µm long, 3-4 µm wide; septa present; transversally septate, 5-8-transversally septate; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; sessile to stipitate, formed all accross the thallus surface.

Conidia: Filiform.

Secondary Metabolites: Present, of the following substance class(es): orcinol depsides.

(report generated 04.Okt.2007)


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