83e, f, g and h). Anamorph: Cytoplea hysterioides K.D. Hyde (Hyde et al. 1996a). Material examined: MALAYSIA, Malacca, on culms of Bambusa Bar & Grill, 1885, B. Scortechini 15 (PAD, Roussoëlla nitidula Sacc. Paol. 2484, holotype, on a loose label Roussoëlla nitidula S. & P. Est Phyllachora phaeodidym./15 prob. original material from Malacca Peninsula). Notes Morphology Roussoëlla was introduced by Saccardo for the single
find protocol species R. nitidula Sacc. & Selleck Inhibitor Library Paol. (Saccardo and Paoletti 1888). It was redescribed by Hyde et al. (1996a) and the anamorph of Roussoëlla hysterioides (Ces.) Höhn., Cytoplea hysterioides K.D. Hyde was determined and described. Roussoëlla was then reviewed by Hyde (1997) and a modified key for Roussoëlla species was provided based on the one proposed by Ju et al. (1996). Roussoëlla is characterized as having immersed ascomata containing long cylindrical asci and brown 1-septate ornamented ascospores. In this study, we have checked the type species and it matches Hyde et al. (1996a). The asci are bitunicate, but we could not observe the fissitunicate dehiscence. Phylogenetic study Species of Roussoëlla, Roussoellopsis as well as Arthopyrenia salicis form a robust
phylogenetic clade, which form a sister group with pleosporalean families, but the generic type of Roussoëlla (R. nitidula) was not included in the phylogenetic study (Tanaka et al. 2009). Concluding remarks The bambusicolous habitat of Roussoëlla is a striking character at generic rank classification but its relationship to the
lichenized Arthopyrenia is unexpected and will require more analysis. Saccharicola D. Hawksw. & O.E. MK 8931 price Erikss., in Eriksson & Hawksworth, Mycologia 95: 431 (2003). (Massarinaceae) Generic description Habitat terrestrial, parasitic. Ascomata medium-sized, solitary, scattered, immersed, globose to subglobose, carbonaceous, papillate, ostiolate. Peridium relatively thin, composed of one cell type of pale brown to hyaline pseudoparenchymatous cells. Hamathecium of trabeculate pseudoparaphyses. Asci bitunicate, 8-spored, cylindro-clavate to clavate. Ascospores biseriate and sometimes laterally uniseriate, fusoid with narrowly rounded ends, septate, L-gulonolactone oxidase constricted at the septa, the upper second cell becoming pigmented when mature, smooth or verruculose. Anamorphs reported for genus: Stagonospora (Eriksson and Hawksworth 2003; Kaiser et al. 1979; Leuchtmann 1984). Literature: Eriksson and Hawksworth 2003. Type species Saccharicola bicolor (D. Hawksw., W.J. Kaiser & Ndimande) D. Hawksw. & O.E. Erikss., Mycologia 95: 431 (2003). (Fig. 84) Fig. 84 Saccharicola bicolor (from IMI 215888, holotype). a Section of an ascomata immersed in the host tissue. b Section of a partial pycnidia. Note the phragmosporous conidia. c Clavate ascus with ocular chamber and short pedicel. d Ascospores. Note the pigmented central cell(s). Scale bars: a, b = 50 μm, c = 20 μm, d = 10 μm ≡ Leptosphaeria bicolor D. Hawksw., W.J.