Lundqvistomyces Y. Marín & Stchigel,  in Marin-Felix, Miller, Cano-Lira, Guarro, García, Stadler, Huhndorf & Stchigel, Microorganisms 8 (9, no. 1430): 29 (2020)

Index Fungorum number: IF 835508; Facesoffungi number: FoF14649

Etymology – Named in honor of the mycologist Nils Lundqvist, who contributed greatly to the taxonomy of Lasiosphaeriaceae.

Sexual morph Ascomata ostiolate, immersed to almost superficial, scattered or aggregated, brown to nearly black, pyriform, covered with brown, flexous hairs; neck black, conical to papilliform; ascomatal wall membranaceous to semi-coriaceous, dark brown to black, opaque, textura angularis. Periphyses absent or present, hyaline, filiform. Paraphyses hyaline, filiform. Asci unitunicate, eight-spored, clavate or cylindrical-clavate, thin-walled, short stipitate, with an indistinct apical ring. Ascospores biseriate, at first one-celled, ellipsoidal, becoming transversely uniseptate and two-celled; upper cell dark, ellipsoidal-fusiform to fusiform, sometimes slightly inequilateral, with a truncate base and an apical germ pore; lower cell hyaline to pale brown, conical, often collapsing; gelatinous appendages absent. Asexual morph absent or present. Conidia absent or delimited from peg-like non-proliferating structures on undifferentiated hyphae.

Type species – Lundqvistomyces karachiensis (S.I. Ahmed & Asad) Y. Marín & Stchigel.

Notes – This genus includes two species previously identified as T. tanzaniensis and Z. karachiensis. In our phylogenetic study, both species were located in an independent terminal clade (100% bs/1 pp) in the Schizotheciaceae (clade VIII), far from the type species of Triangularia, located in the Podosporaceae (clade IV), and from Zopfiella, in the Lasiosphaeriaceae s. str. (clade V). Lundqvistomyces is characterized by its ostiolate ascomata with a membranaceous to semi-coriaceous ascomatal wall of textura angularis, asci with an indistinct apical ring, and ascospores at the first ellipsoidal and a smooth-walled upper cell. Lundqvistomyces karachiensis differs from L. tanzaniensis mainly in the size of the upper and lower cells of the ascospores (broader upper cell and longer lower cell in the latter species). Moreover, L. karachiensis also produces an asexual morph, which is absent in L. tanzaniensis.

Species