Cladonia homosekikaica Nuno

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 or basionymous. Taxonomic rank: species. Cladonia. Cladoniaceae Zenker (1827).

Taxonomic Literature: Taxonomic notes: Alaska only, not QCI. Brodo I.M. & Ahti T., Can. J. Bot. 74: 1147-1180 (1996).

Ecology: Terricolous; growing sun-exposed.

Thallus: Crustose, squamulose; lobes ascending; rounded at the front; branches densely aggregated, scattered, loosely aggregated, or clustered; separate thallus parts 1-3 mm long; 1-1.5 mm wide. Primary Thallus: Evanescent or persistent. Secondary Thallus: Present, of determinate growth; stipe 10-45 mm high, 1-4 mm wide, grey-green, lime green, brown, or grey ((79), greyer in Alaska), homogeneously coloured, corticate or not corticate, with intact wall. Thallus Outline: Margin entire or crenulate (thick). Upper Surface: Olive; not sorediate. Lower Surface: White.

Lower Cortex: Absent.

Ascocarps: Forming along the margin of scyphi (on short proliferations), sparse, 2.5-4 mm in diam.. Disk: Strongly convex; brown (strong brown (55)).

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

Spot Tests: Upper surface: K – (negative), C –, PD + red.

(report generated 15.Nov.2007)