Multiverruca H.Y. Wang, Y.F. Han & Z.Q. Liang, in Wang, Zhang, Ren, Shao, Li, Chen, Liang, Liang & Han, Int. J. Syst. Evol. Microbiol. 73(no. 005734): 6 (2023)

Index Fungorum number: IF843849, Facesoffungi number: FoF 16007

Etymology – There are many tubercules on hyphae and spore.

Diagnosis – Conidiophores reduced to conidiogenous cells. Conidiogenous cells solitary, mostly globose; conidia acrogenous, mostly solitary or in short branched chains, verruculose, mostly cymbiform, septate; conidia giving rise to secondary conidia via apical cell.

Description: Asexual morph: Mycelium immersed to superficial, hyphae, verruculose, septate. Conidiophores reduced to conidiogenous cells. Conidiogenous cells solitary on mycelium, erect, mostly globose, smooth or reduced to inconspicuous loci on hyphae. Conidiogenous cells giving rise to conidial chains. Conidia acrogenous, directly on the mycelium or on conidiogenous cells, mostly solitary or in short branched chains, brown, verruculose, mostly cymbiform, septate, more thick-walled at the septa, with obtusely rounded basal and apical cells; conidia give rise to secondary conidia via apical cell, secondary conidia again, forming additional conidia. Sexual morph: unknown.

Type species – Multiverruca sinensis H.Y. Wang, Y.F. Han and Z.Q. Liang.

Notes – Multiverruca is established to accommodate Multiverruca sinensis. Compared with closely related genera in Latoruaceae, Multiverruca has distinctive morphological characteristics with globose and smooth conidiogenous cells, verruculose mycelium and cymbiform conidia. Although both Multiverruca and Latorua have conidiophores reduced to conidiogenous cells, Latorua differs from the former in having clavate conidiogenous cells on mycelium and conidia having a small, globose apical cell that is constricted at the septa and the more swollen second and third cell than base cell.┬áThe new genus is supported by the phylogenetic analysis of combined ITS+LSU sequence data, wherein, strains of Multiverruca group cluster together and share the same subclade with Latorua.

Species

  • Multiverruca sinensis