Alternaria smyrnii

Species:	Alternaria smyrnii (Crouan) Simmons
Original Reference:	Crouan, P. L. and H. M. Crouan. 1867. Florule du Finistere. Klincksieck, Paris. 262 pp.
Additional Reference:	Simmons, E. G. 1995. Alternaria themes and variations (112-144). Mycotaxon. 55: 117-122.
Conidia:	(on PCA) mature conidia typically 64-96 x 24-27 µm, narrowly ellipsoid or ovoid to obovoid (40-58 x 18-22 µm), smooth sometimes punctulate,pale to medium yellowish brown, 7-8 transepta, 1-3 longisepta, solitary or in chains of 2.
Conidiophore:	(on PCA) 100-600 x 3-7 µm, arising singly or in dense clumps from multi-cellular hyphal knots or sclerotia-like bodies.
Additional Characters:	Conidiophores are sometimes refered to as megaconidiophores as they are often longer than 600 µm, arching and entangling with other conidiophores.
Disease:	black patches on stalks of alexanders, cow parsely, and on parsley.
Host:	Smyrnium olus-atrum L. [alexanders], Anthiscus sylvestis L. Hoffm. [cow parsley], Petroselineum crispum (Mill.) Nym.[parsely]

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