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

Stigmidium icmadophilae R. Sant.

Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. (03-03-27). Data set not revised; not to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Stigmidium. Genus incertae sedis: Stigmidium; of unknown placement (incertae sedis).

Taxonomic Literature: Santesson R., Fungi Lichenicoli Exsiccati Fasc. I-II: 17 (1984).

Biogeography: Northern hemispheric. Continent: Europe. Region(s): Northern Europe. Country or state(s): Sweden.

Ecology: Biotroph; lichenicolous, endosubstratic or episubstratic; growing on inorganic soil. Host or Phorophyte Taxonomy: Icmadophila ericetorum.

Lichen Photobionts: Primary photobiont absent.

Thallus: Indistinct (Vegetative hyphae brown spreading on the surface of the host or in the host tissue).

Medulla: Iodine reaction in Lugol's solution negative.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, subglobose, forming inside the thallus or mycelium of the host, within the ascocarp disks of the host (only rarely), not emerging, becoming adnate to soon sessile, 50-80 µm wide, with a black surface. Wall: Not carbonized. Margin: Black, 8-10 µm wide; external filaments absent. Disk: Smooth. Exciple: Paraplectenchymatous; not carbonized, dark brown. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Absent. Hypothecium: Dark brown.

Asci: Clavate, indistinctly stipitate, 30-40 µm long, 15-21 µm wide; tholus not amyloid; dehiscence bitunicate; ascoplasm not dextrinoid.

Ascospores: Not uniseriate, c. 8 per ascus, spores 8 per ascus, ellipsoid, 14-19 µm long, 4.5-5.5 µm wide, obtuse; septa present, transversally septate, 1-transversally septate; lumina of equal size; wall thin, laterally constricted where the septum meets the spore wall, hyaline, not ornamented.

Conidiomata: Absent resp. not observed.

Secondary Metabolites: Not detected.

(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.