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 Add this item to the list  810143 Original description
   
Remarks (public):Cabral A., C. Rego, T. Nascimento, H. Oliveira, J.Z. Groenewald and P.W. Crous, 2012c. Multi-gene analysis and morphology reveal novel Ilyonectria species associated with black foot disease of grapevines. Fungal Biology 116, 62–80. 
Description type:Original description 
Description:Conidiophores simple or complex, sporodochial. Simple conidiophores arising laterally or terminally from aerial mycelium, solitary, unbranched, bearing up to two phialides, 1e6-septate, 29e190 mm long; phialides monophialidic, more or less cylindrical, but tapering slightly in the upper part towards the apex, 16e42 mm long, 2.0e3.5 mm wide at the base, 2.5e4 mm at the widest point, and 1.5e2.5 mm near the apex. Complex conidiophores aggregated in small sporodochia, repeatedly and irregularly branched; phialides more or less cylindrical, but tapering slightly in the upper part towards the apex, or narrowly flask-shaped, mostly with the widest point near the middle, 15e27 mm long, 2.5e3.5 mm wide at the base, 3.0e3.5 mm at the widest point, and 2.0e2.5 mm wide at the apex. Macroconidia predominating, formed by both types of conidiophores; on SNA formed in flat domes of slimy masses, (1e)3(e6)-septate, straight or minutely curved, cylindrical, or minutely widening towards the tip, appearing somewhat clavate, particularly when still attached to the phialide, with apex or apical cell typically slightly bent to one side and minutely beaked; base mostly with a visible, centrally located or laterally displaced hilum; one-septate conidia (21.0e) 26.0e27.1e28.1(e39.0) (4.5e)5.3e5.4e5.6(e7.0) mm, with a length : width ratio of (3.8e)4.8e5.0e5.1(e6.8); twoseptate conidia (26.0e)33.2e34.5e35.9(e45.0) (5.0e)6.0e6.2e 6.5(e7.5) mm, with a length : width ratio of (4.4e) 5.4e5.6e5.7(e7.0); and three-septate conidia (33.0e)43.9e46e 48.1(e68.0) (6.0e)7.2e7.4e7.7(e9.0) mm, with a length : width ratio of (4.5e)5.9e6.2e6.5(e9.8) mm. Microconidia 0e1-septate,more or less straight, with a minutely or clearly laterally displaced hilum; constricted at the septum; aseptate microconidia globose to subglobose, (8.0e)11.3e11.8e 12.4(e18.0) (3.0e)4.0e4.1e4.3(e5.0) mm, with a length : width ratio of (1.8e)2.7e2.9e3.0(e4.0) mm; one-septate microconidia ellipsoidal to ovoid, (11.0e)15.0e15.6e 16.2(e20.0) (3.5e)4.4e4.5e4.6(e5.0) mm, with a length : width ratio of (2.4e)3.3e3.5e3.6(e4.5) mm. Conidia formed in heads on simple conidiophores or as white (OA) or unpigmented (SNA) masses on complex conidiophores. Chlamydospores rarely occur, globose to subglobose, 6e10 5e8 mm, smooth but often appearing rough due to deposits, thick-walled, mostly occurring in chains. 
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