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): Hertel H. (99-01-01). Data set not revised.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Lecidea. Synonyms:-; Lecideaceae Chevall. (1826); Lecanorales.

Type Information: Protologue: Tuckerman E., Synopsis North Amer. Lich. 3: 67 (1888); type specimen label data: U.S.A., California, Santa Cruz, comm. Sprague (FH-Tuck, holotype).

Ecology: Biotroph; lichenized; endosubstratic or episubstratic; substrate non-calciferous.

Thallus: Not subdivided parts, continuous throughout or dispersed along the periphery, continuous in the centre; lobes angular at the front; separate thallus parts 0-.15 mm thick. Thallus Size and Differentiation: Large; main branches basally not constricted. Thallus Outline: Margin concolorous the thallus centre. Upper Surface: White, plane; not sorediate; without thalloconidia thalloconidia.

Ascocarps: Soon sessile, slightly constricted or strongly constricted at the base, 12-30 per cm², .7-1.3-(2.4) mm in diam.. Margin: Not flexuose, persistent or excluded, 50-100 µm wide, epruinose. Disk: Plane to strongly convex, black, without an umbo. Exciple: Grey; inspersed with crystals. Epithecium: Apical cells turquoise. Hymenium: 45-60 µm high; white; iodine reaction: Lugol’s positive. Subhymenium: 0-45 µm high; white or pale green. Hypothecium: White or brownish yellow.

Ascospores: Ellipsoid or oblong, (10)-12.6-14.8-(17) µm long, (3.5)-4.7-5.4-(6.5) µm wide; wall not ornamented.

Spot Tests: Medulla: K –, C –, PD – ascocarp margin (in section): K –, C – disk: C – hypothecium: K + purplish brown (chinoide reaction); epihymenium: K –.

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