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

Stigmidium croceae (Arnold) Cl. Roux & Triebel

Data Set Maintenance: Data set compiled. Data set author(s): Cáceres M. Data set not revised; not to be published after submission.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: Roux C. & Triebel D., Bull. Soc. Linn. Provence 45: 451-542 [480-481] (1994).

Biogeography: Northern hemispheric, subalpine and alpine. Continent: Europe. Region(s): Middle Europe. Country or state(s): Austria.

Ecology: Biotroph; lichenicolous, endosubstratic. Host or Phorophyte Taxonomy: Solorina bispora, S. crocea.

Thallus: Indistinct.

Medulla: Iodine reaction in Lugol's solution positive (BCr+ blue violet intense), strongly reacting.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Perithecioid, globose, forming inside the thallus or mycelium of the host, mostly not emerging, becoming adnate, sparse, 43-60 µm wide, 47-62 µm high, with a black surface. Margin: Black, 4-10 µm wide. Exciple: Paraplectenchymatous; hyphae 1-3.5 µm wide, 3-9 µm long, brownish red. Periphyses: Present. Interascal Hyphae: Present; cells 1.5-2.5 µm wide. Hypothecium: Pale brownish red.

Asci: Clavate or cylindrical (broadly subcylindrical), not stipitate or distinctly stipitate (shortly stipitate), 22-34 µm long, 9-11 µm wide; ocular chamber present; ascoplasm dextrinoid (endoascus BCr+ pale violet).

Ascospores: Not uniseriate, c. 8 per ascus, spores 8 per ascus, ellipsoid, (12)-13-15.4-17-(19.5) µm long, (3)-4-4.3-5-(6) µm wide, obtuse; septa present, transversally septate, 1-transversally septate; lumina apically enlarged, constricted at the centre; wall thin, not constricted where the septum meets the spore wall, remaining hyaline, hyaline, in Lugol's Solution positive (perispore BCr+ intense blue; epispore BCr+ pale violet), wall not ornamented or ornamented (mature spores finely verrucose).

Conidiomata: Present.

Conidia: Cylindrical; 2-3 µm long, .5-1 µm wide.

(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.