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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: Taxonomic notes: not on QCI; description in part from Thomson 1984. Brodo I.M. & Ahti T., Can. J. Bot. 74: 1147-1180 (1996); Thomson, J.W., American Arctic Lichens 1. The macrolichens, New York (1984).

Thallus: Crustose, squamulose; lobes ascending or horizontal; rounded at the front; branches loosely aggregated, scattered, or clustered; separate thallus parts 1-3 mm long; 1-3 mm wide. Primary Thallus: Evanescent or persistent. Secondary Thallus: Present, arising from center of the primary thallus, of determinate growth; stipe 20-100 mm high, .8-3.5 mm wide, lime green or grey, homogeneously coloured, not corticate, with intact or longitudinally split wall. Thallus Outline: Margin entire or crenulate. Upper Surface: Lime green or olive; not sorediate. Lower Surface: White.

Ascocarps: Forming apical at the tip of branches or stipes or along the margin of scyphi, sparse. Disk: Brown.

Secondary Metabolites: Fumarprotocetraric acid and protocetraric acid, of the following substance class(es): ß-orcinol depsidones.

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