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Species MB501000 Heteroconium eucalypti Crous & M. J. Wingfield 2006   Bibliography: Crous, P.W.; Groeneveld, J.Z.; Wingfield, M.J., 2006, Fungal Planet no. 10: (more info) Year of publication: 2006 Status of the name: basionym; legitimate MycoBank's opinion: currently used Classification: Fungi, Anamorphic fungi, Heteroconium Obligate synonym(s): none Morphic status: Anamorph (teleomorph connection(s) unknown or not recorded) Taxonomic synonym(s): Ordered by epithet name none Descriptions: Latin diagnosis Conidia subcylindrica vel ellipsoidea, catenata, sicca, verruculosa, sursum obtusa, ad basim truncata, 0–6-septata, 10–35 × 5–7 ìm, ad septa constricta. Latin diagnosis (Crous, P.W.; Groeneveld, J.Z.; Wingfield, M.J. 2006, Fungal Planet no. 10) Latin diagnosis: Conidia subcylindrica vel ellipsoidea, catenata, sicca, verruculosa, sursum obtusa, ad basim truncata, 0-6-septata, 10-35 x 5-7 µm, ad septa constricta. Typus: Uruguay, La Turrita, on leaves of Eucalyptus dunnii, Jan. 2005, collected by M.J. Wingfield, CBS-H 19766, holotypus; cultures ex-type CPC 12111 = CBS 120122, CPC 12112-12113. Original description Leaf spots predominantly hypophyllous, to some degree visible on the upper leaf surface on older spots, circular, 3–6 mm diam; spots dark brown to black, colour in concentric rings, inner region more grey-brown, becoming dark-brown, with outer region red-brown as it approaches the distinct margin which is not raised, and confluent with the leaf tissue; spots covered with fluffy, brown sporulation. Mycelium internal and superficial, consisting of branched, septate, medium brown, smooth to rough hyphae, covering large portions of the leaf spots. Conidiophores arising as lateral branches from hyphae, erect, cylindrical to ellipsoidal, brown, 1–2-septate with terminal loci visible, 10–15 × 5–7 µm. Conidiogenous cells holoblastic, integrated, terminal, 5–7 × 5–6 µm. Conidia subcylindrical to ellipsoidal, tapering towards both ends, catenate, dry, verruculose, apex obtuse, base truncate, 0–6-septate, 10–35 × 5–7 µm, becoming constricted at the septa. Original description (Crous, P.W.; Groeneveld, J.Z.; Wingfield, M.J. 2006, Fungal Planet no. 10) Leaf spots predominantly hypophyllous, to some degree visible on the upper leaf surface on older spots, circular, 3-6 mm diam; spots dark brown to black, colour in concentric rings, inner region more grey-brown, becoming dark-brown, with outer region red-brown as it approaches the distinct margin which is not raised, and confluent with the leaf tissue; spots covered with fluffy, brown sporulation. Mycelium internal and superficial, consisting of branched, septate, medium brown, smooth to rough hyphae, covering large portions of the leaf spots. Conidiophores arising as lateral branches from hyphae, erect, cylindrical to ellipsoidal, brown, 1-2-septate with terminal loci visible, 10-15 x 5-7 µm. Conidiogenous cells holoblastic, integrated, terminal, 5-7 x 5-6 µm. Conidia subcylindrical to ellipsoidal, tapering towards both ends, catenate, dry, verruculose, apex obtuse, base truncate, 0-6-septate, 10-35 x 5-7 µm, becoming constricted at the septa. Cultural characteristics: Colonies on 2 % malt extract agar (Oxoid) slow-growing, reaching 15 mm diam after 2 months at 25 °C; erumpent with moderate umber aerial mycelium and chestnut outer border; margins smooth, regular; reverse olivaceous-black; colonies fertile. Typus: Uruguay, La Turrita, on leaves of Eucalyptus dunnii, Jan. 2005, collected by M.J. Wingfield, CBS-H 19766, holotypus; cultures ex-type CPC 12111 = CBS 120122, CPC 12112-12113. Etymology Named after its host, Eucalyptus. Date entered: 05/06/2006 02:00:38 Entered by: Mycobank administration Illustration #1: Description: Conidia Author(s): P. Crous Illustration #2: Description: Conidium Author(s): P. Crous Illustration #3: Description: Conidia Author(s): P. Crous Illustration #4: Description: Conidia Author(s): P. Crous Illustration #5: Description: Conidium Author(s): P. Crous Illustration #6: Description: Conidia Author(s): P. Crous Illustration #7: Description: Conidium Author(s): P. Crous Illustration #8: Description: Conidia Author(s): P. Crous Illustration #9: Description: Leaf spot Author(s): P. Crous Illustration #10: Description: Leaf spot detail Author(s): P. Crous Illustration #11: Description: Leaf spot Author(s): P. Crous Illustration #12: Description: Leaf spot Author(s): P. Crous Illustration #13: Description: Leaf spot Author(s): P. Crous Type specimen Herbarium number: CBS H-19766 Collected by: M.J. Wingfield, 2005 Substrate: Eucalyptus dunnii, leaves Location: Uruguay, La Turrita