Iodosphaeria Samuels, E. Müll. & Petrini, Mycotaxon 28(2): 486 (1987)

MycoBank number: MB 25402; Index Fungorum number: IF 25402; Facesoffungi number: FoF 06190; 8 morphological species (Species Fungorum 2020), 2 species with sequence data.

Type speciesIodosphaeria phyllophila (Mouton) Samuels, E. Müll. & Petrini

NotesIodosphaeria was placed in Amphisphaeriaceae by Samuels et al. (1987) and also accepted by Eriksson et al. (2001). However, Barr (1994) and Hyde (1995d) suggested this genus should be placed in Lasiosphaeriaceae. Kang et al. (1998, 1999a) and Jeewon et al. (2003b) suggested that Iodosphaeria should be excluded from Amphisphaeriaceae and the genus was transferred to Trichosphaeriaceae (Réblová 1999d). Hilber & Hilber (2002) introduced Iodosphaeriaceae and treated. Iodosphaeria aquatica was excluded from Iodosphaeria based on morphology being similar to Pseudohalonectria lignicola (Hsieh et al. 1997b). Iodosphaeria tongrenensis was introduced by Li et al. (2015a) from China with morphology and molecular evidence. Iodosphaeria honghense was introduced from China by Marasinghe et al. (2019) and is illustrated here.

Figure 130 Iodosphaeria honghense (Material examined – CHINA, Yunnan Province, Honghe, on dead stems, 15 June 2018, Junfu Li, MFLU 19-0719, holotype). a, b Appearance of ascomata on host substrate. c Close up of ascoma. d Fruiting body under the light microscope. e Section of ascoma. f Periphyses (septate at red arrows). g Peridium. h Associated ceratosporium-like conidia, but probably not related. i Unbranched brown hairs with septa (red arrows). j, k Paraphyses. l-n Asci. o Ascus apical ring (stained in Melzer´s reagent). p-v Ascospores. Scale bars: b, c = 500 μm, d = 200 μm, e, h = 100 μm, f-h, l-n = 50 μm, j-k, o-v = 10 μm.


  • Iodosphaeria phyllophila