Qarounispora grandiappendiculata Nourel-Din, Abdel-Aziz & Abdel-Wahab, sp. nov. (Figure 2)

MycoBank number: MB 841142

Etymology:— In reference to the large-sized polar appendage to the ascospore.

Type:— EGYPT. El-Faiyum governorate: Qaroun Lake, on decaying submerged wood, 29° 29′ 00″ N 30° 49′ 09″ E, 20 November 2018, Coll. A. A. H. Nourel-Din (SUMCC H-17009, holotype) .

Ascomata 125–200 μm in diameter (x = 166.5 μm, n = 7), perithecial, ostiolate, papillate, superficial or partly immersed, globose to subglobose, yellow to orange-brown in color, membranous. Neck 50–90 μm long, 45–60 μm diam., cylindrical to conical, hyaline to yellow-orange, periphysate, ascospores ooze from the ostiolar canal forming spore mass that is bright yellow-orange in color. Peridium 12.3–22.8 μm thick, membranous, one-layered, yellow to orange-brown in color, forming textura angularis. Catenophyses present. Asci 65–115 × 30–45 μm (x = 86 × 38 μm, n = 6), unitunicate, thin-walled, without an apical apparatus, eight-spored, developing at the base of the ascomatal venter, semi-persistent, clavate or broadly ellipsoidal. Ascospores 18–40 × 13–18 μm (x = 27 × 14 μm, n = 50), hyaline to yellow-orange in color, thick-walled, distoseptate, one septate, not constricted at the septum, ellipsoidal to broadly ellipsoidal. Appendages present, one polar appendage coiled inside a globose sheath connected with the ascospore by a hyaline rib and the appendage swell in water to form irregular amorphous large structure 20.3–59 × 14–24.2 μm.

Notes:— Qarounispora grandiappendiculata is characterized by having yellow to orange, superficial or partly immersed, membranous ascomata, one layered peridial wall, semi-persistent asci, one-septate, thick-walled, distoseptate, hyaline to yellow-orange, broadly ellipsoidal ascospores with amorphous, large and irregular one polar appendage.