Hypoxylon perforatum (Schwein.: Fr.) Fr.

TELEOMORPH | CULTURES AND ANAMORPH | SPECIMENS EXAMINED | NOTES

TELEOMORPH

Hypoxylon perforatum (Schwein.: Fr.) Fr., Summa Veg. Scand. II, p. 384. 1849.

º Sphaeria perforata Schwein., Schriften Naturf. Ges. Leipzig 1: 31. 1822; Schwein.: Fr., Syst. Mycol. II, p. 340. 1823.

º Hypoxylon rubiginosum (Pers.: Fr.) Fr. var. perforatum (Schwein.: Fr.) L. E. Petrini apud L. E. Petrini & Müller, Mycol. Helv. 1: 531. 1986.

= Hypoxylon durissimum (Schwein.: Fr.) Sacc., Syll. Fung. I, p. 378. 1882; non Fr., 1849.

º Sphaeria durissima Schwein., Schriften Naturf. Ges. Leipzig 1: 32. 1822; Schwein.: Fr., Syst. Mycol. II, p. 335. 1823.

= Sphaeria decorticata Schwein., Trans. Amer. Philos. Soc., n. ser., 4: 191. 1832; non (Pers.: Fr.) DC. & Lam., 1805; [nom. rejic., ICBN Arts. 13.1 (d) & 64.1].

º Hypoxylon decorticatum (Schwein.) M. A. Curtis, Geol. Nat. Hist. Surv. North Carolina, pt. III, p. 140. 1867.

= Sphaeria catalpae Schwein., Trans. Amer. Philos. Soc., n. ser., 4: 193. 1832.

º Hypoxylon catalpae (Schwein.) Sacc., Syll. Fung. I, p. 392. 1882.

= ? Sphaeria leucostigma Lév., Ann. Sci. Nat. Bot., sér. III, 9: 142. 1848; non DC. & Lam., 1815; [nom. rejic., ICBN Art. 64.1].

º Hypoxylon leucostigma (Lév.) Sacc., Syll. Fung. I, p. 367. 1882.

= Hypoxylon luridum Nitschke, Pyren. Germ., p. 31. 1867.

= Hypoxylon plumbeum Speg., Anales Soc. Ci. Argent. 18: 270. 1884.

= Hypoxylon rubiginosum (Pers.: Fr.) Fr. var. microcarpum Speg., Anales Mus. Nac. Hist. Nat. Buenos Aires 17: 120. 1908.

Stromata hemispherical, pulvinate to effused-pulvinate, with inconspicuous to conspicuous perithecial mounds, 1-25 mm long x 1-10 mm broad x 0.5-1 (-1.5) mm thick; surface dark brick (60), grayish sepia (106), brown vinaceous (84), or umber (9); dark brown or blackish granules immediately beneath surface and between perithecia, with KOH-extractable pigments amber (47) with greenish yellow (16) tone, or greenish yellow (16) with citrine (13) tone; the tissue below the perithecial layer dark brown to blackish, inconspicuous or up to 1 mm thick.

Perithecia spherical, 0.1-0.3 mm diam.

Ostioles lower than the stromatal surface, usually overlain with conspicuous white substance.

Asci 80-130 mm total length x 5.5-9 mm broad, the spore-bearing parts 54-82 mm long, the stipes 19-50 mm long, with apical ring bluing in Melzer's iodine reagent, discoid, 0.5-1.8 mm high x 2-2.8 mm broad.

Ascospores brown to dark brown, unicellular, ellipsoid-inequilateral, with narrowly rounded ends, (8-) 9-12 (-13) x 4-6 mm, with straight to slightly sigmoid germ slit spore-length; perispore dehiscent in 10% KOH, smooth or with inconspicuous coil-like ornamentation; epispore smooth.