to LIAS


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



Diplotomma A. Massal. (1852)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Matzer M. & Mayrhofer H. (95-01-15) and Scholz P. (06-06-12); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 15. Diplotomma. Physciaceae Zahlbr. (1898); Lecanorineae; Lecanorales.

Type Information: Type: Diplotomma alboatrum (Hoffm.) Flot. ex A. Massal.

Taxonomic Literature: Galloway D.J., Flora of New Zealand. Lichens: 1-662 [161-162] (1985); Kondratyuk S.Y.A. & Zelenko S.D., Ukrayins'k. Bot. Zhurn. 59(5): 598-607 (2002); Purvis O.W. in: Purvis O.W., Coppins B.J., Hawksworth D.L., James P.W. & Moore D.M. (eds), The lichen flora of Great Britain and Ireland: 1-710 [238-239] (1992); Rambold G., Mayrhofer H. & Matzer M., Pl. Syst. Evol. 192: 31-40 (1994).

Biogeography: Checklist records: Great Britain, Italy, New Zealand, Sonoran Desert, United States and Canada (continental), and Republic of South Africa.

Ecology: Biotroph; lichenized or lichenicolous; corticolous; substrate calciferous.

Lichen Photobionts: Primary photobiont present; chlorococcal. Secondary photobiont absent.

Thallus: Indistinct or crustose, not subdivided parts, rimose. Upper Surface: White, grey, or brownish yellow; special structures absent. 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, not emerging, becoming adnate to soon sessile. Margin: Indistinct to prominent; external filaments absent. Exciple: Brownish yellow or brown. Periphyses: Absent. Epithecium: Apical cells brown. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: Brownish yellow or brown.

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

Ascospores: c. 8 per ascus, ellipsoid or clavate, 11-30 µm long, 5.5-17 µm wide, obtuse; septa present; transversally septate or both transversally and longitudinally, 1-3-transversally septate; wall thin, not thickened at the septum, dark brown, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; formed all accross the thallus surface.

Conidia: Globose.

Secondary Metabolites: Not detected or present, of the following substance class(es): ß-orcinol depsidones.

(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.

LIAS Home