Fungalpedia – Note 1026, Pleomelogramma
Pleomelogramma. Speg.
Citation when using this data: Tian Q et al. 2021 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank
Classification: Herpotrichiellaceae, Chaetothyriales, Chaetothyriomycetidae, Eurotiomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on decaying woody plants. Sexual morph: Ascostromata perithecioid, aggregated, dense, superficial, globose, black, smooth-walled, ostiolate. Ostiole central, black, flattened. Peridium multi-layered. Hamathecium lacking paraphyses. Asci 8-spored, bitunicate, broadly obclavate. Ascospores biseriate, fusiform, muriform, hyaline, 5–trans-septate, constricted at the septa, with or without longitudinal septa, slightly curved, smooth-walled, with or without guttules, without a gelatinous sheath or appendages. Asexual morph: Undetermined.
Notes – Pleomelogramma was established by Spegazzini (1909) to accommodate
P. argentinensis which was associated with decorticated branches of Eriobotrya japonica. The genus is characterized by perithecioid, aggregated, dense ascostromata and fusiform, muriform ascospores. Petch (1924) introduced the second species P. rugosa from dead branches in Sri Lanka. Currently, two species are accepted in Pleomelogramma but neither sexual morph nor molecular sequences are available. Hence, fresh collections are needed for epitypification and the sequence data are needed to confirm the identification of Pleomelogramma in Herpotrichiellaceae.
Type species: Pleomelogramma argentinensis Speg., Anal. Mus. nac. B. Aires, Ser. 3 12: 389 (1909).
Other accepted species: Species Fungorum – search Pleomelogramma.
References
Petch T. 1924 – Xylariaceae Zeylanicae. Annals of the Royal Botanic Gardens Peradeniya. 8, 119–166.
Spegazzini, C. 1909 – Mycetes Argentinenses. Series IV. Anales del Museo Nacional de Historia Natural de Buenos Aires 3(12), 257–458.
Entry by
Qing Tian, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
Published online 16 December 2021