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.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Muellerella. Verrucariaceae Zenker (1827); Verrucariales.

Taxonomic Literature: Taxonomic notes: +ascomatal wall in section dark reddish brown in upper exposed parts, entirely colorless in immersed parts, 15-25 µm thick, sometimes slightly thicker in exposed parts;. Diederich, P. (2003), Herzogia 16: in press;.

Biogeography: Continent: Northern America. Checklist records: United States and Canada (continental) (known only from the type locality in California).

Ascocarps: Perithecioid (subspherical), not emerging (initially immersed in the host thallus and apothecia, later erumpent), becoming adnate, .06-.12 mm in diam.. Margin: Black. Periphyses: Present (periphyses, hyaline, septate, branched).

Ascospores: 12-16 (c. 256-spored) per ascus, 3.5-5 µm long, 1.7-2.3 µm wide; septa present; transversally septate; 1-transversally septate; wall thin, .2 µm wide, pale brown (olivaceous), not ornamented.

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