Pyrrhoderma nigrum Meng Zhou, Yuan Yuan & Vlasák

Thambugala, Kasun M., Karunarathna, Samantha C., Zhao, Chang-Lin, Elgorban, Abdallah M., Tennakoon, Danushka S. & Konara, Ushari A., 2023, Perenniporiopsis srijayewardenepurana sp. nov. and validation of Pyrrhoderma nigrum in Sri Lanka, Phytotaxa 619 (2), pp. 123-136 : 132

Pyrrhoderma nigrum Meng Zhou, Yuan Yuan & Vlasák ,

in Zhou, Ji, Liu, Miller, Yuan & Vlasák, Frontiers in Cellular and Infection Microbiology 12(no. 1100044): 8 (2023)

MycoBank no.: MB#847696; Facesoffungi number: 847696

Please refer to Zhou et al. (2023) for the description.

Known distribution & hosts: China: Hainan Province, Ledong County, Jianfengling National Nature Reserve, Yunnan Province, Mengla County, Wangtianshu Forest Park, on fallen angiosperm trunk; Costa Rica: Golfito, Playa Cacao, Playa Nicuesa; French Guiana, Roura, Camp Cayman, St. Laurent du Maroni, Gite Moutouchi, on fallen angiosperm trunk, Puerto Rico, Mayagüez, Miradero, Papaya House, on fallen mango trunk.

Specimens examined: Sri Lanka, Western Province, Gampaha District, Kadawatha , on Artocarpus heterophyllus Lam. (Moraceae) , 14.09.2022, Kasun Thambugala, KTSL019, ( USJ-H-121 ); ibid., 24.10.2022, Kasun Thambugala, KTSL036 ( USJ-H-122 ).

Notes: The strains of the freshly collected specimens USJ-H-121 and USJ-H-122 were clustered in the Pyrrhoderma nigrum clade ( Figure 2 ) along with the type strain of P. nigrum (Cui 8546), and the specimens were identified as P. nigrum based on both phylogeny and morphology ( Zhou et al. 2023). This particular species was introduced by Zhou et al. (2023) based on collections made in China and Costa Rica. Although the publication covers every aspect of valid publication, it does not include the required identifier number obtained from a respective repository (Index Fungorum, Fungal Names, or MycoBank). Hence, the nomenclatural status of P. nigrum is deemed invalid (Index Fungorum, MycoBank 2023). Moreover, the fungus name was originally published as Pyrrhoderma “ nigra ” (with a feminine epithet), however, it must be corrected to the neuter form to agree with the neuter genus: Pyrrhoderma nigrum . Our specimens were collected from Artocarpus heterophyllus (Jackfruit) and this is the first record of P. nigrum on this host and the first country report to Sri Lanka.

Figures

FIGURE 2. The phylogram generated from the maximum likelihood analysis of combined ITS and LSU sequences from Pyrrhoderma and related taxa (Final likelihood value of -8507.985969).The tree is rooted with Oxyporus populinus (Dai 8908). The new newly recorded species are indicated in red. Bootstrap support values ≥65% from the maximum likelihood (ML) and Bayesian posterior probabilities (PP) values ≥0.90 are given above the nodes.