Lecanographa Egea & Torrente (1994)

Data Set Maintenance: Data set standard item. Data set author(s): Triebel D. Data set reviewer(s): Egea J.M. & Torrente P., Scholz P. (06-06-12, 06-08-07), and Triebel D. (98-01-01); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 28 (A. Aptroot 99-09-27)-29. Lecanographa. Roccellaceae Chevall. (1826); Arthoniales.

Type Information: Type: Lecanographa lyncea (Sm.) Egea & Torrente.

Taxonomic Literature: Aptroot A., Diederich P., Sérusiaux E. & Sipman H.J.M. in:
Knoph J.-G., Schrüfer K. & Sipman H.J.M (eds), Biblioth.
Lichenol. 57: 19-48 [32-34] (1995); Egea M., Torrente P., Manrique
E., Pl. Syst. Evol. 187: 103-114 (1993); Egea M. & Torrente P.,
Biblioth. Lichenol. 54: 1-205 [51, 52-55, 116-164] (1994); Egea J.M.,
Sérusiaux E. & Torrente P., Mycotaxon 59: 47-59 (1996);
Feige G.B., Lumbsch H.T. & Mies B., Cryptog. Bot. 3: 101-107
(1993); Follmann G. & Werner B.C., J. Hattori Bot. Lab. 94: 261-
292 (2003).

Biogeography: Checklist records: Austria, Great Britain, Italy, New Guinea, Sonoran Desert, and United States and Canada (continental).

Ecology: Biotroph; lichenized or lichenicolous; lignicolous or corticolous; substrate non-calciferous or calciferous.

Lichen Photobionts: Primary photobiont absent or present; trentepohlioid. Primary photobiont taxonomy: Trentepohlia; Trentepohliaceae; Trentepohliales. Secondary photobiont absent.

Thallus: Indistinct or crustose, not subdivided parts, leprose, granular, or rimose. Thallus Outline: Soon disappearing or persistent. Upper Surface: White, grey, green, yellow, or brownish yellow; special structures absent; not pseudocyphellate; eciliate; without hairs; not isidate; not sorediate; not cephalodiate; not lobulate; without granules granules; without thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface; special structures absent or present:; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, irregular, or linear, forming all across the thallus surface, not emerging, becoming adnate to soon sessile. Margin: Indistinct to prominent; external filaments absent. Exciple: Dark brown. Epithecium: Apical cells green, yellow, or brown. Hymenium: Iodine reaction: Lugol’s negative or Lugol’s positive; hemiamyloid. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: Brownish yellow or brown.

Asci: Tholus thickened, amyloid, with amyloid tube or entirely amyloid throughout; dehiscence bitunicate; exoascus not amyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, ellipsoid, ovoid, oblong-obtuse, fusiform, filiform, or curved, 10-45 µm long, 2.5-9 µm wide, obtuse or aciculate; septa present; transversally septate; 3-12-transversally septate; wall thin or thick, distinctly differentiated into primary and secondary wall, not thickened at the septum, hyaline, pale brown, or dark brown, in Lugol's Solution negative, wall not ornamented or ornamented.

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

Conidia: Bacilliform, filiform, or curved; aseptate; cell wall hyaline.

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

(report generated 25.Okt.2007)