Juncigena Kohlm., Volkm.-Kohlm. & O.E. Erikss., Bot. Mar. 40(4): 291 (1997)
MycoBank number: MB 27750; Index Fungorum number: IF 27750; Facesoffungi number: FoF 02113; 2 morphological species (Species Fungorum 2020), 1 species with sequence data.
Type species – Juncigena adarca Kohlm., Volkm.–Kohlm. & O. E. Erikss.
Notes – Juncigena Kohlmeyer et al. (1997). was initially included under Magnaporthaceae by Eriksson (1999). Further protein coding and rDNA based phylogeny by Schoch et al. (2006) revealed Juncigena adarca clusters with Swampomyces sp. in Coronophorales. Jones et al. (2009) included Juncigena under Hypocreales incertae sedis. With resolving the TBM (Torpedospora/Bertia/Melanospora) clade with terrestrial Falcocladium, Jones et al. (2014) referred Juncigena under Juncigenaceae. Kohlmeyer et al. (1997) revealed that Cirrenalia adarca was the asexual morph of Juncigena adarca. Abdel-Wahab et al. (2010) transferred C. adarca to Moheitospora based on phylogenetic and morphological evidence. The genus currently comprises Juncigena adarca and J. fruticosae. Juncigena is distinctive from other genera in having the cylindrical, short pedicellate asci with an apical ring (Jones et al. 2014). Réblová et al. (2016b) referred Moheitospora fruticosae to Juncigena as the two genera are congeneric, and Juncigena has priority.
Figure 136 – Juncigena fruticosae (Material examined – EGYPT, Mediterranean coast, on decayed driftwood in the intertidal zone, June 2006, M. A. Abdel-Wahab, IMI 391650, holotype). a Herbarium packet. b Herbarium material. c Hyphae, conidiophores and conidia on host. d Conidiophores. f-k Conidiophores and variously-shaped mature conidia. Scale bars: c = 200 µm, d = 100 µm, e, f = 50 µm, g-k = 20 µm.