Nigrogranaceae Jaklitsch & Voglmayr
Index Fungorum number: IF 817780; Facesoffungi number: FoF 08317, 16 species
Etymology: Referring to the name of the type genus.
Saprobic on decayed twigs of shrubs and trees in terrestrial habitats, sometimes can be endophytic or human pathogenic. Sexual morph: Ascomata immersed-erumpent, sometimes superficial, scattered or aggregated, globose to sub-globose, black, usually seated on or surrounded by a subiculum, ostiolate. Ostiole papillate to cylindrical; periphysate. Peridium pseudoparenchymatous. Hamathecium comprising cellular, septate and branched pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, cylindric clavate to broadly clavate, with a knob-like pedicel, and a shallow ocular chamber at rounded apex. Ascospores 2-seriate, fusoid to narrowly ellipsoid, straight or slightly curved, pale to chocolate brown, mostly 1–3-septate, smooth-walled or faintly verruculose. Asexual morph: pyrenochaeta-like, Conidiomata pycnidial, globose, ostiolate. Peridium brown, pseudoparenchymatous. Conidiophores when present filiform, simple to sparsely branched, with pegs and terminal phialides. Phialides ampulliform, lageniform, or subcylindrical. Conidia forming on pegs and phialides, rod-like to ellipsoid, hyaline or subhyaline, sometimes pale brown in mass, aseptate, smooth-walled (adapted from Jaklitsch & Voglmayr 2016).
Type genus: Nigrograna Gruyter, Verkley & Crous
Notes: Nigrogranaceae was introduced to accommodate three new species of Nigrograna. Jaklitsch & Voglmayr (2016) doubted the validity of the strain of B. marina (type of Biatriosporaceae) in GenBank. In their multi-gene phylogenetic analyses, strains of Biatriospora mackinnonii grouped in Nigrograna. Therefore, they dismissed Biatriosporaceae, and transferred Biatriospora species to Nigrograna. However, based on the type species, Hyde et al. (2017) argued that Biatriosporaceae is distinct, and the family should be maintained. Nevertheless, B. marina needs recollecting for sequence analysis to establish if Nigrograna is related, which seems unlikely. (Descriptions from Hyde et al. 2020)
Nigrograna aquatica W. Dong, H. Zhang & K.D. Hyde, in Dong et al., Fungal Diversity: 10.1007/s13225-020-00463-5,  (2020)
Nigrograna cangshanensis Z.L. Luo, Hong Y. Su & K.D. Hyde, in Tibpromma et al., Fungal Diversity 83: 52 (2017)
Dong W, Wang B, Hyde KD, McKenzie EHC, Raja HA, Tanaka K, Abdel-Wahab MA, Abdel-Aziz FA, Doilom M, Phookamsak R, Hongsanan S, Wanasinghe DN, Yu XD, Wang GN, Yang H, Yang J, Thambugala KM, Tian Q, Luo ZL, Yang JB, Miller AN, Fournier J, Boonmee S, Hu DM, Nalumpang S, Zhang H (2020) Freshwater Dothideomycetes. Fungal Divers 105:319–575. https://doi.org/10.1007/s13225-020-00463-5
Hyde KD, Norphanphoun C, Maharachchikumbura SSN, Bhat DJ, Jones EBG, Bundhun D, Chen Y-J, Bao D-F, Boonmee S, Calabon MS, Chaiwan N, Chethana K, Dai D, Dayarathne M, Devadatha B, Dissanayake A, Dissanayake L, Doilom M, Dong W, Fan X, Goonasekara I, Hongsanan S, Huang S, Jayawardena R, Jeewon R, Karunarathna A, Konta S, Kumar V, Lin C, Liu J, Liu N, Luangsa-ard J, Lumyong S, Luo Z, Marasinghe D, McKenzie E, Niego A, Niranjan M, Perera R, Phukhamsakda C, Rathnayaka A, Samarakoon M, Samarakoon S, Sarma V, Senanayake I, Shang Q, Stadler M, Tibpromma S, Wanasinghe D, Wei D, Wijayawardene N, Xiao Y, Yang J, Zeng X, Zhang S, Xiang M (2020) Refined families of Sordariomycetes. Mycosphere 11:305–1059. https://doi.org/10.5943/mycosphere/11/1/7
Tibpromma S, Hyde KD, Jeewon R, Maharachchikumbura SSN, Liu JK, Bhat DJ, Jones EBG, McKenzie EHC, Camporesi E, Bulgakov TS, Doilom M, de Azevedo Santiago ALCM, Das K, Manimohan P, Gibertoni TB, Lim YW, Ekanayaka AH, Thongbai B, Lee HB, Yang JB, Kirk PM, Sysouphanthong P, Singh SK, Boonmee S, Dong W, Raj KNA, Latha KPD, Phookamsak R, Phukhamsakda C, Konta S, Jayasiri SC, Norphanphoun C, Tennakoon DS, Li J, Dayarathne MC, Perera RH, Xiao Y, Wanasinghe DN, Senanayake IC, Goonasekara ID, de Silva NI, Mapook A, Jayawardena RS, Dissanayake AJ, Manawasinghe IS, Chethana KWT, Luo ZL, Hapuarachchi KK, Baghela A, Soares AM, Vizzini A, Meiras-Ottoni A, Mešić A, Dutta AK, de Souza CAF, Richter C, Lin CG, Chakrabarty D, Daranagama DA, Lima DX, Chakraborty D, Ercole E, Wu F, Simonini G, Vasquez G, da Silva GA, Plautz HL, Ariyawansa HA, Lee H, Kušan I, Song J, Sun J, Karmakar J, Hu K, Semwal KC, Thambugala KM, Voigt K, Acharya K, Rajeshkumar KC, Ryvarden L, Jadan M, Hosen MI, Mikšík M, Samarakoon MC, Wijayawardene NN, Kim NK, Matočec N, Singh PN, Tian Q, Bhatt RP, de Oliveira RJV, Tulloss RE, Aamir S, Kaewchai S, Marathe SD, Khan S, Hongsanan S, Adhikari S, Mehmood T, Bandyopadhyay TK, Svetasheva TY, Nguyen TTT, Antonín V, Li WJ, Wang Y, Indoliya Y, Tkalčec Z, Elgorban AM, Bahkali AH, Tang AMC, Su HY, Zhang H, Promputtha I, Luangsa-ard J, Xu J, Yan J, Ji-Chuan K, Stadler M, Mortimer PE, Chomnunti P, Zhao Q, Phillips AJL, Nontachaiyapoom S, Wen TC, Karunarathna SC (2017) Fungal diversity notes 491–602: taxonomic and phylogenetic contributions to fungal taxa. Fungal Divers 83:1–261. https://doi.org/10.1007/s13225-017-0378-0