Species descriptions
Neodeightonia palmicola J.K. Liu, Phookamsak & K.D. Hyde, Sydowia 62: 268. 2010. MycoBank MB518804. Fig. 48.
Ascomata uniloculate, immersed to erumpent in host tissue, globose to subglobose, brown to dark brown, rounded at the base, 180-230 [micro]m high (excluding the neck), 270-420 [micro]m diam. Ostiole circular, central, papillate. Peridium 26-55 [micro]m wide, comprising several layers of brown-walled cells, the outer stratum of 1-3 cells comprising thick, dark brown walls, the inner layer 3-5 cells, textura angularis comprising pale brown to hyaline, thin-walled cells. Pseudoparaphyses thin-walled, hyaline, frequently septate, often constricted at the septa, up to 3-5 [micro]m diam. Asci 8-spored, bitunicate, fissitunicate, with thick endotunica, clavate to cylindricalclavate, stipitate, apically rounded, with a well-developed ocular apical chamber, arising from the base of ascoma, (80-)110-210(225) x 17-22.5(-24) [micro]m (av. = 154.2 x 20.5 [micro]m). Ascospores obliquely uniseriate or irregularly biseriate, ellipsoidal-fusiform or fusiform, widest in the middle, both ends obtuse, 1-celled, aseptate, hyaline, smooth, thin-walled, with bipolar germ pores, surrounded by a wing-like hyaline sheath, 23-31.5 x 8.5-12.5 [micro]m (av. = 27 x 10 [micro]m). Conidioma (formed on WA on sterilised pine needles within 21-28 d) uniloculate, semi-immersed, solitary, globose, covered by mycelium, up to 240 [micro]m wide, wall 4-8 cell layers thick, composed of dark brown thick-walled textura angularis, becoming thinwalled and hyaline toward the inner region. Conidiogenous cells holoblastic, cylindrical to subcylindrical, hyaline, 9-20 x 3-6 [micro]m. Conidia initially hyaline, unicellular, ellipsoid to obovoid, thick-walled with granular content, rounded at apex, occasionally truncate at base, aging conidia becoming cinnamon to sepia, forming a single septum, 17.5-24.5 x 9.5-12.5 [micro]m (av. of 50 conidia = 21.5 x 11.0 [micro]m).
Type: Thailand, Chiang Rai, Muang District, Khun Korn Waterfall, on dead leaves of Arenga westerhoutii, 18 Dec. 2009, Jian-Kui Liu, holotype MFLU10 0407.
Culture: MFLUCC10 0822 = CBS 136074 (ex-type).
Host: Arenga westerhoutii (Liu et al. 2010).
Known distribution: Thailand (Liu et al. 2010).
Notes: This species is unusual in having ascospores surrounded by a mucilagenous sheath and pycnidial paraphyses, features not seen in other species of Neodeightonia. Furthermore, there are no striations on the conidia and it is also phylogenetically somewhat divergent from other Neodeightonia species.
Neodeightonia phoenicum A.J.L. Phillips & Crous, Persoonia 21: 43. 2008. MycoBank MB511708. Fig. 49.
= Macrophoma phoenicum Sacc., Annuar. R. Ist. Bot. Roma 4: 195. 1890.
[equivalent to] Diplodia phoenicum (Sacc.) H.S. Fawc. & Klotz, Bull. Calif. Agric. Exp. Sta. 52: 8. 1932.
[equivalent to] Strionemadiplodia phoenicum (Sacc.) Zambett., Bull. trimest. Soc. mycol. Fr. 70: 235. 1955 (1954).
Ascomata not reported. Conidiomata formed on pine needles in culture pycnidial, stromatic, multiloculate, dark brown to black, immersed in the host becoming erumpent when mature. Paraphyses absent. Conidiogenous cells hyaline, smooth, cylindrical, swollen at the base, holoblastic, proliferating percurrently to form one or two annellations, or proliferating at the same level giving rise to periclinal thickenings. Conidia ovoid to ellipsoid, apex and base broadly rounded, widest in the middle to upper third, thick-walled, initially hyaline and aseptate, becoming dark brown and 1-septate some time after...