Cladonia pyxidata (L.) Hoffm.

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: Terricolous, bryophytic, or lignicolous; growing sun-exposed; substrate non-calciferous.

Thallus: Crustose, squamulose; lobes ascending; branches densely aggregated, scattered, or loosely aggregated; separate thallus parts 1-7 mm long; .5-4 mm wide. Primary Thallus: Persistent. Secondary Thallus: Present, arising from center of the primary thallus, of determinate growth; stipe 7-16 mm high, olive or brown (same as primary squamules or somewhat greyer where decorticate), mottled, with intact wall. Thallus Outline: Margin entire or crenulate (thin to somewhat thick). Upper Surface: Areolated (at base), olive or brown (greyish olive (109) to olive-brown (94) or yellow brown (74)), smooth; not sorediate. Lower Surface: White or grey.

Lower Cortex: Absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form. Ascocarps: Forming along the margin of scyphi, sparse. Disk: Brown.

Secondary Metabolites: Fumarprotocetraric acid (with Cph-2) and protocetraric acid, of the following substance class(es): ß-orcinol depsidones.

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

(report generated 15.Nov.2007)