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 standard item. Data set author(s): Cáceres M. (01-02-01). Data set not revised; to be published after submission (01-02-01).

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: genus. Number of known taxa within this rank: 1. Crustospathula. Biatoraceae A. Massal. ex Stiz. (1862); Lecanorineae; Lecanorales.

Thallus: Indistinct or crustose, granular (verruculose). Thallus Outline: Persistent (thin, whitish). Upper Surface: Greyish green; not pseudocyphellate; eciliate; without hairs; not isidate; sorediate (stalked, starting as pinkish, cartilaginous warts of c. 0.3 mm diam. and up to 0.3 mm high, soon forming simple or 1-2 times branched, spathuliform branches); not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface; special structures absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, forming all across the thallus surface. Margin: Distinct; external filaments absent. Exciple: White. Interascal Hyphae: Scarcely branched, not or scarcely anastomosed. Hypothecium: White.

Asci: Tholus thickened, amyloid, with non-amyloid narrow axial body and amyloid convergent flanks towards apex; dehiscence lecanoralean.

Ascospores: Curved or fusiform, 25-27 µm long, 6-9 µm wide, obtuse or aciculate (upper end rounded, lower end pointed); septa absent or present; transversally septate, 0-3-transversally septate, formed by the proper spore wall; wall thin, not constricted where the septum meets the spore wall, hyaline, not ornamented.

Secondary Metabolites: Present, of the following substance class(es): ß-orcinol depsides.

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