Daldinia cudonia (Berk. & M. A. Curtis) C. G. Lloyd



Daldinia cudonia (Berk. & M. A. Curtis) C. G. Lloyd, Mycol. Writings 7: 1255. 1924.Figs. 7, 38, 39

º Xylaria cudonia Berk. & M. A. Curtis apud Berk., Grevillea 4: 47. 1875.

= Daldinia murrillii C. G. Lloyd, Mycol. Writings 6: 901. 1919.

Stromata turbinate to clavate, unbranched, with slender stipe bearing constricted rings, smooth, 0.7-1.5 cm diam x 1-2.3 cm total length, the stipe 0.5-1.5 cm long x 1.5-3.5 mm diam; surface brown vinaceous (84) or dark brick (60), blackened and varnished in age; dull reddish brown granules immediately beneath surface, with KOH-extractable pigments dilute purple or without apparent KOH-extractable pigments; the tissue between perithecia brown, pithy to woody; the tissue below the perithecial layer composed of alternating zones, the darker zones dark brown, pithy to woody, 0.2 mm thick, the lighter zones grayish brown to brown, pithy to woody, sometimes with locules, persistent, 0.3-1.5 mm thick close to the perithecial layer, up to 3.5 mm thick in the stipe.

Perithecia tubular, 0.3-0.4 mm diam x 1-1.3 mm high.

Ostioles obsolete to slightly papillate.

Asci 200-280 mm total length x 10-12 mm broad, the spore-bearing part 80-100 mm long, the stipe 120-180 mm long, with apical ring bluing in Melzer's iodine reagent, discoid, 0.5 mm high x 3 mm broad.

Ascospores brown to dark brown, unicellular, ellipsoid-inequilateral, with narrowly rounded ends, 12.5-16.5 (-19.5) x 6-8 mm, with straight to slightly oblique germ slit spore-length on convex side; perispore dehiscent in 10% KOH, smooth; epispore smooth.