You are here
All Fungi
Psilachnum lanceolatoparaphysatum
Nomenclature
-
Family: PezizellaceaeGenus: Psilachnum
SUMMARY
Anamorph: not known.
Teleomorph: ascomata apothecia, 300-500 (-800) µm diam., gregarious, erumpent, sessile, saucer-shaped when moist, becoming cupulate when dry, light brown to greyish, with downy white hairs towards the margin, hymenium pale cream to pale brown. An apparently gelatinised or at least agglutinated ring round the base of the apothecium stains blue with iodine. Excipulum composed of rounded to angular, thin-walled, hyaline to light brown cells mostly 7-10 x 5-7 µm in size. Hairs 25-40 µm long and 3-4 µm diam., hyaline, cylindrical, obtuse, 0- to 1-septate with thin smooth gelatinized walls. Subhymenium formed of slender agglutinated hyphae which stain blue in Melzer's reagent. Interascal tissue of unbranched lanceolate paraphyses, 2-2.8 µm diam., to ca 10 µm longer than the asci, fairly thick-walled, the apices attenuated and sometimes with the final 2-3 µm apiculate. Asci 30-35 (-45) x 4-5 µm, sessile, cylindric-clavate, the pore blued by Melzer's reagent, with croziers, (4-) to 8-spored. Ascospores arranged biseriately, 8-10.5 (-12.5) x 1.5-2 (-2.5) µm [measured in rehydrated material in KOH], narrowly clavate to narrowly fusiform, hyaline, aseptate, smooth, without a gelatinous sheath or appendages.