Erysiphe cinnamomicola U. Braun & S. Takam.

Data Set Maintenance: Data set compiled and standard item; reviewer(s): Schubert K. (06-03-22); revised.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Synonyms: Microsphaera cinnamomi (L. S. Olive) U. Braun; Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Microsphaera alni var. cinnamomi L. S. Olive. Type: Microsphaera alni var. cinnamomi L. S. Olive.

Taxonomic Literature: Taxonomic notes: +ascocarp outer wall cells irregularly polygonal, ca. 8-25 µm diam.;. Braun U., Beih. Nova Hedwigia 89: 1-700 [319-320] (1987).

Biogeography: Northern hemispheric. Continent: Northern America (USA, only known from the type collection). Country or state(s): Louisiana (USA).

Ecology: Biotroph; phytopathogenic; growing on leaves, amphigenous. Host or Phorophyte Taxonomy: Cinnamomum camphora (L.) T. Nees & C.H.Eberm.; Cinnamomum, Lauraceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular, forming independently from the host thallus or mycelium, scattered (usually), .08-.14 mm in diam.. Margin: External filaments present; straight, 1.5-2 µm long, 6-10 µm in diameter, hyaline or faintly pigmented (yellowish, sometimes brown at the base), numerous, 10-25 per mm², growing between the lower and upper hald of the ascocarp, flexuose or stiff and straight (the shorter ones), smooth or verrucose (mostly), thin or thick (towards the base), ramified, dichotomously branched (1-6 times, branchings rather diffuse, tips not recurved, sometimes forked in the lower half), aseptate or septate (mostly, with some septa or septum-like lines which are remote from the base).

Asci: 2-8 asci per ascocarp, not stipitate or indistinctly stipitate, 50-65 µm long, 25-45 µm wide; dehiscence unitunicate.

Ascospores: 1–2, c. 4, or c. 8 per ascus, spores (2)-3-5-(7) per ascus, subglobose, ellipsoid, or ovoid, 16-25.5 µm long, 10.5-16.5 µm wide; septa absent.

(report generated 04.Okt.2007)