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Species MB504456 Mycosphaerella elaeocarpi Crous & Summerell 2007   Bibliography: Crous, P.W.; Groenewald, J.Z.; Summerell, B.A., 2007, Fungal Planet no. 13: (more info) Year of publication: 2007 Status of the name: basionym; legitimate MycoBank's opinion: currently used Classification: Fungi, Ascomycota, Pezizomycotina, Dothideomycetes, Dothideomycetidae, Capnodiales, Mycosphaerellaceae, Mycosphaerella Obligate synonym(s): none Morphic status: Teleomorph (anamorph connection(s) unknown or not recorded) Taxonomic synonym(s): Ordered by epithet name none Descriptions: Latin diagnosis Mycosphaerellae gregariae similis, sed ascosporis majoribus, (12-)14-16(-18) x 3-4(-4.5) µm Original description Leaf spots amphigenous, irregular to sub-circular, 1-6 mm diam, grey to pale brown, with a thin, raised, dark brown border. Ascomata pseudothecial, predominantly epiphyllous, dark brown, subepidermal to somewhat erumpent, globose, up to 70 µm wide; apical ostiole 10 µm wide; wall consisting of 2-3 layers of medium brown textura angularis. Asci aparaphysate, fasciculate, bitunicate, subsessile, obovoid to broadly ellipsoidal, straight to slightly curved, 8-spored, 30-40 x 8-9 µm. Ascospores tri- to multi-seriate, overlapping, hyaline, guttulate, thin-walled, straight to slightly curved, fusoid-ellipsoidal with obtuse ends, widest in middle of apical cell, mostly medianly 1-septate and unconstricted at the septum, but larger ascospores tend to be unequally 1-septate, and slightly constricted at the septum, tapering towards both ends, but more prominently towards the lower end, (12-)14-16(-18) x 3-4(-4.5) µm. Ascospores germinate from polar ends, with germ tubes parallel to the long axis of the spore; spore not distorting, but becoming constricted at the septum, up to 4 µm wide, at times developing 1-2 additional lateral branches on the original germ tubes, or spore body (germination Type I) Etymology Named after its host genus, Elaeocarpus. Date entered: 11/07/2007 04:45:16 Date of release: 05/09/2007 01:14:17 Entered by: Mycobank administration Illustration #1: Description: Colony of Mycosphaerella elaeocarpi Author(s): P.W. Crous Conditions: MEA Illustration #2: Description: Colony of Mycosphaerella elaeocarpi Author(s): P.W. Crous Conditions: MEA Illustration #3: Description: Leaf spot of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #4: Description: Leaf spot of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #5: Description: Germinating ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #6: Description: Germinating ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #7: Description: Germinating ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #8: Description: Germinating ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #9: Description: Germinating ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #10: Description: Ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #11: Description: Ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #12: Description: Ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #13: Description: Ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #14: Description: Ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #15: Description: Ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #16: Description: Ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #17: Description: Ascospores of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #18: Description: Spermatia of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #19: Description: Spermatogonium of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #20: Description: Asci of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #21: Description: Asci of Mycosphaerella elaeocarpi Author(s): P.W. Crous Illustration #22: Description: Asci of Mycosphaerella elaeocarpi Author(s): P.W. Crous Type specimen Herbarium number: CBS H-19919 Collected by: P.W. Crous, 2006 Substrate: Elaeocarpus sp., leaves Location: Australia, Queensland, Cairns, Baron Falls train station, close to Kuranda