The status of Myriangiaceae (Dothideomycetes)

Dissanayake, Asha J.; Jayawardena, Ruvishika S.; Boonmee, Saranyaphat; Thambugala, Kasun M.; Tian, Qing; Mapook, Ausana; Senanayake, Indunil C.; Yan, Jiye; Li, Yanmei; Li, Xinghong; Chukeatirote, Ekachai; Hyde, Kevin D.

doi:10.11646/phytotaxa.176.1.22

Cited by 14 publications

(19 citation statements)

References 22 publications

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“…Li et al (2011), Hyde et al (2013) and Dissanayake et al (2014) however, revised the familial positions of Beelia, Butleria, Hyalotheles, Hemimyriangium, Saccardinula, Stephanotheca and Xenodium and supported the separation of Elsinoaceae from the family Myriangiaceae based on phylogenetic analysis. The families are also morphologically distinct.…”

Section: Myriangialesmentioning

confidence: 90%

A re-assessment of Elsinoaceae (Myriangiales, Dothideomycetes)

Jayawardena¹,

Ariyawansa²,

Singtripop³

et al. 2014

Phytotaxa

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The family Elsinoaceae is a relatively poorly known, but important family within Myriangiales, Dothideomycetes. The genera of this family are mostly plant pathogens and causes disease, such as apple and grape scab. In this paper we revisit the family by examining generic types and analysis of molecular sequence data available in GenBank. Elsinoaceae and Myriangeaceae are morphologically and phylogenetically well-supported families in Myriangiales. In Elsinoaceae, 3 to 10 asci form in locules in light coloured pseudoascostromata, which form typical scab-like blemishes on leaf or fruit surfaces, while Myriangeaceae forms raised, superficial, black ascostromata with single asci in each locule, genera may or may not form scab-like lesions. Elsinoe is the type of the family Elsinoaceae and is characterized by forming scab-like blemishes on leaves with few to numerous bitunicate, fissitunicate, globose asci forming inside each locule with a pseudoascostroma containing fungal and host tissues. Following examination of generic type material, Molleriella is retained in Elsinoaceae as it has characters similar to Elsinoe in forming scab-like lesions with pseudoascostromata containing few to numerous bitunicate asci inside each locule. Beelia, Butleria, Hemimyriangium, Hyalotheles, Micularia, Saccardinula, Stephanatheca and Xenodium are excluded from Elsinoaceae and their relative placement in Dothideomycetes is discussed. Fresh collections of these genera are needed so that molecular sequence data can be obtained and analysed to resolve their placement in families or orders of Dothidoemycetes.

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Section: Myriangialesmentioning

confidence: 90%

A re-assessment of Elsinoaceae (Myriangiales, Dothideomycetes)

Jayawardena¹,

Ariyawansa²,

Singtripop³

et al. 2014

Phytotaxa

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“…Nylander (1854) introduced this family for taxa with relatively poorly developed, yellow to black ascostromata with minute ostioles which are saprobic on bark, leaves and branches. Asci are bitunicate and ascospores have 4-7 transverse septa or are muriform (Dissanayake et al 2014). Ascostratum has similar characters, and we suggested to transfer the genus to the family Myriangiaceae in Dissanayake et al (2014).…”

Section: Taxonomymentioning

confidence: 92%

“…Asci are bitunicate and ascospores have 4-7 transverse septa or are muriform (Dissanayake et al 2014). Ascostratum has similar characters, and we suggested to transfer the genus to the family Myriangiaceae in Dissanayake et al (2014).…”

Section: Taxonomymentioning

confidence: 92%

“…nat. Cherbourg 2: 9 (1854) MycoBank: MB81866 For a review of Myriangiaceae see Dissanayake et al (2014). Nylander (1854) introduced this family for taxa with relatively poorly developed, yellow to black ascostromata with minute ostioles which are saprobic on bark, leaves and branches.…”

Section: Taxonomymentioning

confidence: 99%

“…Ascostratum is characterized by erumpent or superficial ascostromata with numerous locules scattered in the upper part of substrate, oval to globose asci, and 7-8 transverse septate, hyaline ascospores (Sydow & Sydow 1912). At present, the family Myriangiaceae, with four genera Anhelia, Diplotheca, Myriangium and Diplotheca, is separated from Elsinoaceae based on molecular evidence , Hyde et al 2013, Dissanayake et al 2014. Ascostratum shows similarities with Anhelia in the family Myriangiaceae as both genera have numerous locules, scattered ascostromata in the upper part, and 4-7 transverse septate ascospores.…”

Section: Taxonomymentioning

confidence: 99%

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Towards a natural classification of Dothideomycetes 5: The genera Ascostratum, Chaetoscutula, Ceratocarpia, Cystocoleus, and Colensoniella (Dothideomycetes incertae sedis)

et al. 2014

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In the Outline of Ascomycota 2009, 116 genera were listed under Dothideomycetes, genera incertae cedis. In the present study, we re-examined the generic types of Ascostratum, Chaetoscutula, Ceratocarpia, Cystocoleus and Colensoniella which are relatively poorly documented. We re-described and illustrated the type species of these genera and suggest higher level placements based on a modern classification system. Ascostratum is placed in Myriangiaceae because of similarities with Anhelia, both genera have ascostromata with numerous locules in the upper part and 4-7 transversely septate ascospores. Chaetoscutula is similar to Pododimeria in having the same host and septate, olivaceous-brown ascospores and thus is transferred to Pseudoperisporiaceae. Colensoniella has apothecioid ascomata but 1-septate oblong, uniseriately ascospores that many break in the centre form part-spores and is referred to Patellariaceae. Cystocoleus is a typical of any family of Dothideomycetes, but phylogenetic analysis showed this genus to cluster in Capnodiales incertae sedis. Ceratocarpia has glabrous ascomata, muriform ascospores and evanescent pseudoparaphyses so placed in Chaetothyriaceae. By illustrating the genera we hope to stimulate fresh collections so that these genera can be epitypified and molecular data analyzed to establish a truly natural classification.

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