Pleosporales » Phaeosphaeriaceae » Juncaceicola

Juncaceicola italica

Juncaceicola italica Tibpromma, Camporesi & K.D. Hyde, in Hyde et al., Fungal Diversity 80: 93 (2016)

Index Fungorum number: IF 552246; Facesofungi number: FoF 02388

Etymology: Refers to the name of the country where the holotype was collected

Holotype: MFLU 14-0685.

Saprobic on dead stem of Dactylis glomerata L. Sexual morph: Ascomata 115–130 μm high 9 130–140 μm diam. (x̄ = 125 9 134 lm, n = 4), superficial, solitary, scattered, globose to subglobose, with a flattened base, easy to remove from the host, shiny, ostiole central, black, smooth-walled. Peridium 5–8 μm, yellow-brown, a single stratum comprised of 2–3 cell layers of textura prismatica. Hamathecium comprising numerous 1.3–3 μm wide, filamentous, guttulate, branched anastomosing, septate pseudoparaphyses. Asci 62–88 9 11–20 μm (x̄ = 77 9 17 μm, n = 10), 6–8-spored, bitunicate, clavate to cylindrical, thin-walled, short pedicellate, apex rounded, ocular chamber not well-developed. Ascospores 18–21 9 6–8 μm (x̄ = 18 9 7 μm, n = 10), fusiform with broadly to narrowly rounded ends, 3-septate, constricted at septa, enlarged at the second cell, green-yellow, guttulate, surrounded by mucilaginous sheath. Asexual morph Undetermined.

Culture characteristics: on PDA reaching 2 cm diam. after 2 weeks at 16 °C, later with dense mycelium, with circular, rough margin, flattened; upper surface white at first, dark brown after 4 weeks, producing pigments in PDA media agar; hyphae septate, branched, thick-walled.

Material examined: ITALY, Forlı`-Cesena Province, Monte Falco, on dead stem of Dactylis glomerata (Poaceae), 15 July 2013, Erio Camporesi, IT1378 (MFLU 14-0685, holotype); ex-type living culture, MFLUCC 13-0750; ibid. (HKAS94558 bis, paratypes).


Notes: Phylogenetic results show Juncaceicola italica to be related to J. dactylidis; however, Hyde et al. (2016), found their new taxon is well-differentiated from J. dactylidis based on morphological differences. That new taxon is characterized by superficial ascomata, a peridium of textura prismatica, 6–8-spored asci and 3-septate ascospores, while J. dactylidis has immersed or erumpent ascomata, a peridium of textura angularis, 8-spored asci and 4-septate ascospores (Tennakoon et al. 2016).