LiasGenera_Sonora_

Botanische Staatssammlung München © 1995–2000

To ensure better readability, the descriptions in natural language are based on an alternative wording of descriptors. Character wording in the data entry and revision forms may therefore be somewhat different, e.g. character #179: Data entry form: "thallus primary subunits" <-> Descriptions: "thallus areoles/lobes"

The description has been generated directly from a database. In cases of errors and insufficiencies consult the corresponding LIAS data entry submission form to make the necessary modifications. Changes will appear in the subsequent data entry form form and natural language description update.

Cryptothecia Stirt. (1876)

Data maintenance: Taxonomic level: genus.

Genus: Cryptothecia.

Data record authors: Rambold G. Record state: revised. Revisor(s): Grube M. (95-12-05) and Lücking R. (95-08-01). Record to be published after submission: yes.

Classification: Type taxon: Cryptothecia subnidulans Stirt.

Family: Arthoniaceae Reichenb. (1841). Order: Arthoniales.

References: Awasthi D.D. & Agarwal M.J., J. Ind. Bot. Soc. 48: 62-72 (1969); Lücking R., Lichenologist 27(2). 127-153 (1995); Makhija U. & Patwardhan P.G., Biovignyanam 11: 1-13 (1985); Makhija U. & Patwardhan P.G., Biovignyanam 13: 43-51 (1987); Patwardhan P.G. & Makhija U., Biovignyanam 7: 121-129 (1981); Santesson R., Symb. Bot. Upsal. 12: 1-590 [63-68] (1952); Thor G., Bryologist 94: 278-283 (1991); Thor G. in: Tibell L. & Hedberg I. (eds), Symb. Bot. Upsal. 32: 267-289 (1997).

Estimated species number at global scale: 50 (A. Aptroot 99-09-27).

Geography and Ecology: Checklist records: Sonoran Desert, United States and Canada (continental), Guianas, and New Guinea.

Life habit: lichenized.

Substratum: bark or living leaves.

Thallus morphology: Leprose or crustose; structure continuous, attached by the whole lower surface; hypothallus absent or present; thallus surface green or grey. Special structures at upper surface: Absent or present; cephalodia absent; hairs absent; cilia absent; isidia absent or present; lobulae absent; granules absent; soralia absent; cyphelloids absent; thalloconidia absent. Lower surface: Special structures absent or present; cavernulae absent; cyphellae absent; cyphelloids absent; rhizines absent; tomentum absent; thalloconidia absent.

Ascoma morphology: Ascomata absent or present, stromatic, laminal on thallus, irregular; margin indistinct. Ascoma anatomy: Paraphyses(-oids) present, distinctly branched, distinctly anastomosing; ostiolar filaments absent.

Asci: Asci bitunicate. Ascospores: 1-2 or c. 8 per ascus, ellipsoidal, ellipsoidic-cylindrical, cylindrical, oblong-obtuse, or ovoid, 36-160 µm long, 11-63 µm wide, obtuse, septate, muriform, 10-14-transversally septate; wall thin and smooth, hyaline, not euamyloid, without thickened endospore.

Conidiomata: Absent or present, pycnidial, indistinct or laminal on thallus, immersed to sessile. Conidiophores and conidia: Conidia bacilliform. Secondary metabolites: Absent or present; Class of compounds: orcinol depsides, ß-orcinol depsides, and ß-orcinol depsidones.

Photobionts: Primary photobiont present, trentepohlioid; secondary photobiont absent.

(report generated 04.May.2000)