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Cladina stygia (Fr.) Ahti

Data Set Maintenance: Data set standard item. Data set author(s): Brodo I. & Ahti T. (96-12-10). Data set to be published after submission; 96-12-10.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Cladonia. Cladoniaceae Zenker (1827).

Taxonomic Literature: Brodo I.M. & Ahti T., Can. J. Bot. 74: 1147-1180 (1996).

Ecology: Growing sun-exposed; under conditions which are dry or moist (usually in or near bogs or fens, but also in grassy or mossy heath).

Thallus: Crustose; branches densely aggregated or caespitose. Primary Thallus: Evanescent. Secondary Thallus: Present, of indeterminate growth; stipe 50-120 mm high, .8-1.6-(2) mm wide, grey (to yellowish white), mottled or tainted brown, with intact or perforated wall, 20 µm thick. Upper Surface: Verruculose, byssoid.

Ascocarps: Sparse.

Conidiomata: Formed on podetia.

Pycnidia: With reddish ostiolar gel.

Secondary Metabolites: Atranorin (at least in traces), fumarprotocetraric acid (with Cph-2, plus other unidentified compounds), and protocetraric acid.

Spot Tests: Upper surface: K + bright yellow (citrine, lemon), PD + red.

(report generated 15.Nov.2007)

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