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Navicella pileata
Gernot Friebes , 13-03-2018 12:00
Genre Navicella
Espèce pileata
Autorités (Tode) Fabre
Classe Eurotiomycetes
Sous-Classe Chaetothyriomycetidae
Ordre Pyrenulales
Famille Massariaceae
Substrat Quercus petraea; on bark at the very base of a living tree
Herbier deposited in personal fungarium
Localité Burgenland, Oberwart, Althodis
Pays Autriche
Leg. Gernot Friebes
Det. Gernot Friebes
Date de récolte 11-03-2018
Remarque It should be noted that the ascospores in my collection are relatively small for N. pileata (up to ca. 55 x 12,5 µm, with mostly 7, sometimes up to 9 septa). Even smaller measurements are given by Sierra López (2006) [38–43 × 11–14 µm (medium: 41.9 × 12.3 µm)], but the number of septa (7–11) very likely excludes the similar N. elegans. In the literature the ascospores of N. pileata are sometimes given much larger [ca. 50–80 x 12–20 µm in Barr (1990) and Holm & Holm (1988)]. Another morphologically similar species that could be considered here is N. xinjiangensis (Yuan & Zhao 1994).