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Data Set Maintenance: Data set compiled and standard item. Data set author(s): Schubert K. @EXCL@ Kainz C. (06-01-31).

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Erysiphaceae Tul. & C. Tul.; Erysiphales.

Type Information: Basionym: Erysiphe hylomeci H. D. Shin & Y. J. La. Type: Erysiphe hylomeci H. D. Shin & Y. J. La.

Taxonomic Literature: Taxonomic notes: + vegetative hyphae substraight to wavy, 35-75 × 3,5-7 µm, branching at right or narrow angle, with a septum near the branching point; secondary mycelium absent; appressoria multilobed or nipple-shaped, opposite in pairs or single; conidiophores one or two on a hyphal cell, arising from the upper part of mother cells, position mostly central, foot cells slightly to moderately flexuous, with a basal septum at the branching point of the mycelium, followed by 2-3 cells; ascomata dark brown, wall-cells polygonal, 8-21 µm wide, somewhat distinct. Shin H. D., Erysiphaceae of Korea. 1-320 [46-47]. Suwon, Korea (2000); Shin H. D., Mycotaxon 84: 361-365 (2002).

Biogeography: Continent: Asia-Temperate. Country or state(s): Korea (North & South).

Ecology: Biotroph; phytopathogenic; growing on leaves, mostly epiphyllous or amphigenous. Host or Phorophyte Taxonomy: Hylomecon vernalis Maxim.; Hylomecon, Papaveraceae.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Cleistothecioid, orbicular (depressed globose), forming independently from the host thallus or mycelium, not emerging (partly immersed in the mycelial masses), scattered or in loose groups, .083-.107 mm in diam.. Margin: External filaments present; interlaced with each other or interwoven with surrounding mycelium, mycelioid, straight, (1)-2-8-(10) µm long, 5-8 µm in diameter, hyaline or pigmented (brown at the base, paler upwards, hyline in the upper portion), few or numerous, 8-16 per mm², growing all across the lower half of the ascocarp, geniculate (bent) (often undulate to tortuous), thin, not ramified (occasionally with short outgrowths), septate (2-7-septate).

Asci: 5-12-(16) asci per ascocarp, not stipitate or indistinctly stipitate, 57-75 µm long, 34-49 µm wide; dehiscence unitunicate.

Ascospores: c. 4 or c. 8 per ascus, spores 4-6 per ascus, ellipsoid or ovoid, 17-24 µm long, 11-14 µm wide; septa absent.

Conidiophores: Pseudoidium-type; not branched; conidiophore cells 74-98 µm long, basal cells 22-40 µm long, 8-11 µm wide. Conidium Formation: Conidiogenous cells single. Conidia: Ovoid or cylindrical; macroconidial (producing subterminal germ tubes), not branched, 28-40-(48) µm long, 15-18 µm wide; aseptate; without distinct fibrosin body fibrosin bodies.

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