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

The description has been generated directly from a database. In cases of errors and insufficiencies consult the corresponding LIAS data entry and revision forms to make the necessary modifications. Changes will appear in the subsequent update of data entry forms and natural language descriptions. [To verify the actual status of the pages, select the reload frame function in the context menu!]
These pages are XHTML compatible designed. May be that problems arise with older web browser versions.

Data Set Maintenance: Data set compiled (from Sonoran Desert Flora Vol. 1). Data set author(s): Bungartz F. (02-11-17) @EXCL@ Nash T.H. Data set to be published after submission; February 2002.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Ahtiana sphaerosporella (Müll. Arg.) Goward. Ahtiana. Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Parmelia sphaerosporella Müll. Arg. Type: Ahtiana sphaerosporella (Müll. Arg.) Goward.

Biogeography: Northern hemispheric; montane, upper montane, and subalpine. Continent: Northern America (in the Northwest). Checklist records: Sonoran Desert and United States and Canada (continental).

Thallus: Foliose, subdivided into main parts, lobed; lobes elongate (linear); subconvex or convex. Thallus Size and Differentiation: (2)-4-6-(8) cm in diameter; apex rounded. Thallus Outline: Irregular or orbicular. Upper Surface: Light lime green (usually quite yellow, rarely becoming dark olive green), plane; convoluted; not pseudocyphellate; wrinkled; eciliate; not isidate; not sorediate. Lower Surface: Present, green (partly olivaceous), white, or pale grey; attached by holdfasts (true rhizines); wrinkled, wrinkles reticulate; rhizinate; rhizines sparse, moderately abundant, or abundant (towards the lobe tips), grey (concolorous or slightly darker than undersurface), white, or pale grey, usually not branched.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, forming in the thallus centre, independently from the host thallus or mycelium, soon sessile, abundant. Margin: Smooth, distinct. Disk: Plane, light brown, olive, or brownish yellow. Exciple: White. Amphithecium (thalline excipulum): Present.

Ascospores: c. 8 per ascus, spores 8 per ascus, globose, 4-6 µm long, 4-6 µm wide; septa absent.

Conidiogeneous Cells: Intercalar. Conidia: Bifusiform; 5-7-(9) µm long; 1 µm wide.

Secondary Metabolites: Present; only in the upper part of the cortex or throughout the cortex, usnic acid.

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.

LIAS Home