Hymenoscyphus fraxineus (Europe). a1, b, c, d1, e1, g, h3. ascospores (freshly ejected, containing LBs); h4. do. (LBs deteriorated); a2, j. paraphyses (containing VBs); e2, i, k. mature asci; f, h1. overmature ascospores (septate, partly with olive-brown wall); u. ascus apices with euamyloid apical ring; remaining figures: ascogenous hyphae with crozier formation. – Living state: a1–e1, a2, f1, g (in Waterman blue-black ink), h1, h3, i, j (in CRB), k1, r–s, v; dead state: k2 (in H2O), a3–a4, d2–d4, h2 (in CR); e2–e3, l–n, p–q (in CRSDS), f2 (in KOH), o, t (in KOH+CR), h4 (in ethanol + KOH + phloxine), u1–u2 (in IKI). – a. 28.V.2011 (DE-BW, Heidelberg, Ziegelhausen), b. H.B. 9572 (CH-LU, Emmenbrücke), c. H.B. 8220 (DE-ST, Chemnitz), d. 31.VII.2011 (Heidelberg, Schönbrunn), e. 10.VII.2011 (Heidelberg, Boxberg), f. H.B. 9593 (Chemnitz), g. 14.VII.2012 (Heidelberg), h. 23.VII.2011 (DE-BW, Speyer, Böhl-Iggelheim), i. 15.VII.2011 (Ziegelhausen), j. H.B. 9599 (DE-BW, Tübingen), k. H.B. 8509 (DK-Sjaelland, Sorø), l. 18.VII.2011 (DE-TH, Sonneberg), m. 2.VII.2011 (Heidelberg, Handschuhsheim), n. 5.VII.2011 (Ziegelhausen), o. ZT 3298 (CH-BE, Belp), p. 23.VI.2011 (Ziegelhausen), q. 23.VI.2012 (Heidelberg, Lobbach), r. H.B. 9698 (Tübingen), s. H.B. 9700 (Tübingen), t. ZT 3297 (CH-BE, Burgdorf), u. 8.VII.2011 (Sonneberg), v. H.B. 9583 (Tübingen). – Phot. l1–3, u1–2: I. Wagner.