Scolecobasidium E.V. Abbott, Mycologia 19: 30. 1927. emend. F. Liu

Song, Shuang, Li, Meng, Huang, Jun-En & Liu, Fang, 2023, Two new species of Scolecobasidium (Venturiales, Sympoventuriaceae) associated with true mangrove plants and S. terrestre comb. nov., MycoKeys 96, pp. 113-126 : 113

Scolecobasidium E.V. Abbott, Mycologia 19: 30. 1927. emend. F. Liu

Ochroconis de Hoog & Arx, Kavaka 1: 57. 1974 [1973]. Synonym.

Description.

Colonies restricted, slow-growing, brown or olivaceous. Aerial hyphae smooth- or somewhat rough-walled, pigmented. Cleistothecia up to 40 μm in diam, dark brown; peridium wall composed of textura angularis. Ascomata bearing antler-shaped appendages, with serrate edges. Asci bitunicate, clavate, 8-spored; ascospores pale brown, verruculose, 1-3-septate. Conidiophores reduced, unbranched or sparingly branched, arising from the aerial hyphae or hyphal ropes, continuous or septate, hyaline or pigmented, ovoid, clavate, wedge-shaped, cylindrical, or irregular. Conidiogenous cells scattered, monoblastic or sympodial, elongate to cylindrical. Conidia produced in clusters or acropetal series from the ends of tubular extensions of the conidiophores; conidia 1-4-celled, pigmented or hyaline, smooth or verrucose, ellipsoidal, ovoid, cylindrical, or T- or Y-shaped. (emended from Abbott 1927; Barron and Busch 1962; Seifert and Gams 2011; Samerpitak et al. 2014).

Notes.

Abbott (1927) summarized the asexual features of Scolecobasidium as its generic character based on only two species S. terreum and S. constrictum . Over time multiple species of Scolecobasidium have been described, and the boundaries between this genus and closely related genera have also been clarified ( Barron and Busch 1962; Seifert and Gams 2011; Samerpitak et al. 2014; Shen et al. 2020; Wei et al. 2022). However, no one has updated the generic character of Scolecobasidium . In this study, we update the generic character of Scolecobasidium based on previous descriptions, especially the morphological features of the sexual stage of the fungus.

Type species.

Scolecobasidium terreum E.V. Abbott.