Dematipyriforma nigrospora (Boonmee, D.F. Bao & K.D. Hyde) D.F. Bao, K.D. Hyde & Z.L. Luo, 2022

Bao, Dan-Feng, Bhat, Darbhe J., Boonmee, Saranyaphat, Hyde, Kevin D., Luo, Zong-Long & Nalumpang, Sarunya, 2022, Lignicolous freshwater ascomycetes from Thailand: Introducing Dematipyriforma muriformis sp. nov., one new combination and two new records in Pleurotheciaceae, MycoKeys 93, pp. 57-79 : 57

Dematipyriforma nigrospora (Boonmee, D.F. Bao & K.D. Hyde) D.F. Bao, K.D. Hyde & Z.L. Luo comb. nov.

Rhexoacrodictys nigrospora ≡ Rhexoacrodictys nigrospora Boonmee, D.F. Bao & K.D. Hyde, in Boonmee et al., Fungal Diversity 111: 200 (2021).

Holotype.

Thailand, Phetchabun Province, on decaying bark, 25 July 2019, S. Boonmee, LSP03 (MFLU 21-0073).

Descriptions and illustrations.

See Boonmee et al. (2021).

Notes.

Rhexoacrodictys nigrospora was introduced by Boonmee et al. (2021) based on morphological characters and phylogenetic analysis. In our phylogenetic analysis, R. nigrospora clustered with two Dematipyriforma species ( D. aquilaria and D. muriformis ) in a distinct clade within Pleurotheciaceae (Fig. 1 ). Therefore, we transfer Rhexoacrodictys nigrospora to Dematipyriforma , as Dematipyriforma nigrospora comb. nov.

Dematipyriforma nigrospora resembles D. muriformis in having micronematous or semi-macronematous, mononematous conidiophores and monoblastic, polyblastic, integrated, terminal conidiogenous cells. However, D. nigrospora differs from D. muriformis in having brown to dark brown conidiophores and globose to subglobose, dark brown to black conidia ( Boonmee et al. 2021). Conidiophores of D. muriformis are hyaline and conidia are ellipsoidal to obovoid, muriform, and subhyaline to pale olivaceous when young, olive to dark brown at maturity.

Figures

Figure 1. Phylogram based on a combined ITS, LSU SSU, RPB 2 and TEF 1 - α sequence data of selected members of four orders of the Savoryellomycetidae. Bootstrap support values for maximum likelihood (ML) greater than 70 % and Bayesian posterior probabilities (PP) greater than 0.95 are given as ML / PP above the nodes. Newly obtained sequences are indicated in red and ex-type strains are in bold.