Parahevansia Mongkolsamrit & Noisripoom, 2022

Mongkolsamrit, Suchada, Noisripoom, Wasana, Tasanathai, Kanoksri, Kobmoo, Noppol, Thanakitpipattana, Donnaya, Khonsanit, Artit, Petcharad, Booppa, Sakolrak, Baramee & Himaman, Winanda, 2022, Comprehensive treatise of Hevansia and three new genera Jenniferia, Parahevansia and Polystromomyces on spiders in Cordycipitaceae from Thailand, MycoKeys 91, pp. 113-149 : 113

Parahevansia Mongkolsamrit & Noisripoom gen. nov.

Type species.

Parahevansia koratensis (Hywel-Jones) Mongkolsamrit & Noisripoom, comb. nov., Mycol. Res. 100: 1067 (1996).

Etymology.

Morphologically resembling the genus Hevansia , but being phylogenetically distinct.

Description.

Asexual morph: Synnemata arising from all parts of host, numerous, simple, brown at the sterile base becoming grey white with fertile part. Conidiogenous cells phialidic producing upper part of the synnemata. Phialides in a monolayer, single on basal lateral cells of synnemata, crowded, obovoid to ellipsoid with distinct necks. Conidia in chain, hyaline, smooth-walled, clavate.

Notes.

Parahevansia koratensis , the type species of this genus, was originally described as species of Akanthomyces (Hywel-Jones, 1996) and later transferred to Hevansia ( Kepler et al. 2017). Our multi-gene phylogenetic analyses supported Parahevansia as a monophyletic clade with strong support (MLB = 100 / BPP = 1.00, Fig. 1 ). Therefore, we introduced Parahevansia as a new genus that accommodates a single species, Pa. koratensis .

Figures

Figure 1. RAxML tree of Hevansia, Jenniferia, Parahevasia, Polystromomyces and related genera in the Cordycipitaceae from a combined ITS, LSU, tef 1, rpb 1 and rpb 2 dataset. Numbers at the major nodes represent Maximum Likelihood Bootstrap (MLB) and Bayesian Posterior Probabilities (BPP). Bold lines in the tree represent 100 % of MLB and 1.00 of BPP. Symbols on the right-hand side correspond to the types of ascospore morphologies found in each genus that are observed in natural specimens of Cordycipitaceae described in Fig. 2.