Hyphodontia orasinusensis

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Macromorphology:

Micromorphology:

Spores:

3.5-5 x 2.5-3.5 µm, ellipsoid, smooth, inamyloid, thin-walled, with one droplet each.

Basidia:

10-20 x 4.5-6 µm, young ellipsoid, mature cylindric, barrel-shaped, clavate or slightly suburniform with one constriction and a basal clamp each.

Sterigmata:

Four, 2.5 µm long.

Cystidia:

Tubular tramacystidia thick-walled (up to 2 µm), up to ca. 150 µm long, diameter up to 8 µm, apical thin-walled and often with secondary septa. The cystidia arise from the subiculum or from basal hyphae.

Clamps:

The primary septa of the hymenium and subhymenium with one clamp each. Septa of the subiculum or basal hyphae sometimes without clamps.

Hyphae:

Hyphal system monomitic. Basal hyphae 3-4 µm in diameter, thick-walled (up 1 µm). Subicular hyphae 3-4 µm in diameter, thick-walled (up 1 µm), septa often witout clamps. Subhymenial hyphae 3-5 µm in diameter, short cells (cell length ca. 5-10 µm), thin-walled. Hyphal branching b youtgrowing of clamps or subseptal outgrowing.

Aculei:

Centre built up by tramacystidia. Aculei fertile almost up to the top.

Habitate and substrate:

Biogeography:

Remarks:

Spores shorter than 4.5 µm
  Spores more narrow than 2.5 µm.................H. microspora
  Spores wider than 2.5 µm 
    Clamps at septa of basal hyphae present......H. palmae
    Clamps at septa of basal hyphae not present..H. orasinusensis
Spores longer than 4.5 µm
  Aculei up to 3 mm long, on deciduous wood......H. barba-jovis
  Aculei at most 1 mm long, on coniferous wood...H. abieticola

Herbarium specimens:

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