Search on : Taxa descriptions

 


 
 Add this item to the list  808386 Original description
   
Literature:
 
Page number:92 
Remarks (public):Hypoxylon ilicinum Lar.N. Vassiljeva & S.L. Stephenson, sp. nov. Fig. 6D
MycoBank MB 808386
Differs from Hypoxylon fuscum by its smaller ascospores and luteous KOH-extractable pigments.
Stromata hemispherical to pulvinate, discrete 2-4 mm diam. or confluent, with inconspicuous or slightly conspicuous perithecial mounds; surface lividvinaceous to dark-vinaceous; light brownish granules immediately beneath surface and among the perithecia, with KOH-extractable pigments luteous. Perithecia spherical, 200-300 μm diam., ostioles umbilicate. Asci in the spore-bearing part 75-80 × 6-7 μm, stalks 35-40 μm, with an apical ring bluing in Melzer’s iodine reagent, discoid, 0.3-0.5 μm high, 2.5-3 μm broad. Ascospores brown, unicellular, ellipsoid-inequilateral, 8-12.5 × 4.5-5.5 μm, with a straight germ slit extending the length of the spore on the concave side; perispore dehiscent in 10% KOH.
 
Description type:Original description 
Description:Stromata hemispherical to pulvinate, discrete 2–4 mm diam. or confluent, with inconspicuous or slightly conspicuous perithecial mounds; surface livid-vinaceous to dark-vinaceous; light brownish granules immediately beneath surface and among the perithecia, with KOH-extractable pigments luteous. Perithecia spherical, 200–300 µm diam., ostioles umbilicate. Asci in the spore-bearing part 75–80 × 6–7 µm, stalks 35–40 µm, with an apical ring bluing in Melzer's iodine reagent, discoid, 0.3–0.5 µm high, 2.5–3 µm broad. Ascospores brown, unicellular, ellipsoid-inequilateral, 8–12.5 × 4.5–5.5 µm, with a straight germ slit extending the length of the spore on the concave side; perispore dehiscent in 10% KOH. 
Taxon name: