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Mycosphaerella ulmi Kleb. 1902
Details
Mycosphaerella ulmi Kleb., Z. Pflanzenkrankh. 12 257 (1902)
Nomenclature
Kleb.
Kleb.
1902
257
ICN
Mycosphaerella ulmi Kleb. 1902
species
Mycosphaerella ulmi
Classification
Associations
has host
Descriptions
Mycosphaerella ulmi Kleb. 1902
Leaf spot on elm is of little importance; it may cause early leaf fall. The ascogenous stage has not been found in New Zealand. Both host and fungus are introduced and in New Zealand are of no economic importance.
Mycosphaerella ulmi Kleb. 1902
Type: Foliicolous Fungi; Description: Ascomata perithecial, scattered, immersed, subglobose, black, 0.1 mm in diameter; on irregular brown leaf spots on the lower surfaces of leaves. Asci elongate-clavate, 90 × 10 μm. Ascospores fusiform, 1-septate, 26–28 × 3–4 μm, smooth, hyaline. Conidiomata acervular, brown, up to 0.2 mm in diameter; on leaf spots on the lower surfaces of leaves. Conidia sickle-shaped, 3–5-septate, 30–60 × 4–6 μm, smooth, hyaline; oozing out in whitish masses.
Distribution: Auckland, Waikato, Bay of Plenty, Taranaki, Hawkes Bay, Nelson.; 1st Record: Brien & Dingley (1951: as Septogloeum ulmi).
Significance: A common leaf spot of little importance.; Host(s): Ulmus americana, U. ×hollandica, U. ×vegeta.
Taxonomic concepts
Mycosphaerella ulmi Kleb. 1902
Mycosphaerella ulmi Kleb. 1902
Mycosphaerella ulmi Kleb. 1902
Mycosphaerella ulmi Kleb. (1902)
Mycosphaerella ulmi Kleb. 1902
Mycosphaerella ulmi Kleb. (1902)
Mycosphaerella ulmi Kleb. 1902
Mycosphaerella ulmi Kleb. 1902
Global name resources
Collections
Metadata
1cb194d6-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
22 July 2013