Botanische Staatssammlung München © 1995–2008
Data remain intellectual property of the data set authors.

Xanthoparmelia digitiformis (Elix & P. M. Armstr.) Filson

Data Set Maintenance: Data set compiled (Flora of Australia Vol. 55 Lichens-Lecanorales, Parmeliaceae). Data set author(s): Nöske, N. M. @EXCL@ Clerc, P. (04-10-28). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia digitiformis (Elix & P. M. Armstr.) Filson. Xanthoparmelia. Synonyms: Parmelia conspersa var. stenophylla auct. non Ach.
Xanthoparmelia somloensis (Gyeln.) Hale;
Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Parmelia digitiformis Elix & P. M. Armstr. Type: Xanthoparmelia digitiformis (Elix & P. M. Armstr.) Filson.

Taxonomic Literature: Brunonia 7: 205 (1984).

Biogeography: Southern hemispheric; subalpine (upland areas and subalpine zones). Continent: Australasia. Checklist records: Australia and New Zealand.

Ecology: Biotroph; lichenized; saxicolous; growing under conditions which are dry.

Thallus: Foliose, subdivided into main parts, irregular (subirregularly branched), lobed; lobes elongate, imbricate (strongly imbricate); branches applanate (moderately flattened); separate thallus parts 1.5-3 mm wide. Thallus Size and Differentiation: Up to 20 cm in diameter. Upper Surface: Lime green (pale yellow-green, blackening with age), glossy (shiny) (becoming rugulose, dull and cracked); immaculate; not isidate; not sorediate; lobulate (lobes becoming densely laciniate at thallus centre; laciniae similar to marginal lobes but narrower (1-2 mm wide), elongate, digitately to subidgitately branched, building up thallus into a thick mat). Lower Surface: Present, brown (brown to dark brown, darker towards lobe apices); attached by holdfasts; rhizinate (slender); rhizines sparse, with a narrow non-rhizinate margin, brown (concolorous with lower surface), not branched.

Medulla: White.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid (subpedicellate), up to 6 mm in diam.. Margin: Crenulate (crenulate to flexuose), indistinct (thin, involute, almost disappearing at maturity). Disk: Excavate (dull, smooth, becoming rugulose), brown.

Ascospores: 7-10 µm long, 4-6 µm wide.

Conidiomata: Present (common).

Conidia: Bifusiform; 5-6 µm long; .5 µm wide.

Secondary Metabolites: Present; throughout the thallus medulla, consalazinic acid, norstictic acid, protocetraric acid, salazinic acid, and usnic acid.

Spot Tests: Cortex: KC – medulla: K + yellow changing to red, C –, KC –, PD + deep yellow (changing to orange).

UV-Fluorescence: Upper thallus surface – (negative).

(report generated 04.Okt.2007)

In case that additional characters and states are required to be included in this data set, consult the LIAS Instructions to Participants and follow the procedures described there.