Description in vivo: See Braun (1995).

Specimens examined: South Korea, Hongcheon, on Capsella bursa-pastoris, 4 Nov. 2005, H.D. Shin, culture CPC 12519; on Draba nemorosa, 30 Oct. 2004, H.D. Shin, culture CBS 135464 = CPC 11677; Inje, on Trigonotis peduncularis, 14 Sep. 2003, H.D. Shin, culture CPC 10865; Namyangju, on Raphanus sativus, 22 Oct. 2007, H.D. Shin, culture CBS 131896 = CPC 14773. New Zealand, Auckland, Mt. Albert, on Brassica sp., unknown date and collector, isol. C.F. Hill, Jul. 2005, culture CBS 118412. Unknown country, on Brassica sp., unknown date and collector, isol. R. Evans, 28 Aug. 2002, cultures CBS 112032, CBS 112033. USA, Columbia, Missouri, Boone Co., on Capsella bursa-pastoris, May 1887, Galloway 253 (holotype NY 883641, isotype BPI 399944).

Substrate and distribution: Various cruciferous species (Brassicaceae), circumglobal (host list and detailed distribution see Braun 1995).

Notes: Pseudocercosporella capsellae (1973) is based on Cylindrosporium capsellae (1887) from Capsella bursa-pastoris from the USA (Columbia, Missouri). It is hereby combined in the new genus Neopseudocercosporella. Neopseudocercosporella capsellae causes White Leaf Spot disease, an important disease of cruciferous species worldwide (Fig. 1, Clade I; Fig. 4). The strains CPC 12518 and CPS 12519 were isolated from this host but originated from South Korea. Mycosphaerella capsellae (1991) is described from Brassica napus in the UK and linked to Pseudocercosporella capsellae. The isolates CBS 112032 and 112033 are listed from the UK but with Brassica sp. as host and were deposited by R. Evans who also at approximately the same time deposited IMI 389562, which is listed in the IMI database as being from Brassica napus. Based on ITS and partial LSU, an isolate from ATCC (38562 from Brassica rapa, USA, California; GenBank JX499036) which is listed in ATCC as Pseudocercosporella capsellae, also belongs to this clade. Unfortunately no other sequences were available for this isolate. Fresh cultures need to be collected from plants exhibiting typical disease symptoms and included in a molecular phylogeny.

Clade II: Fusoidiella Videira & Crous, gen. nov. MycoBank MB816818.

Etymology: Named after the fusiform-shaped conidia of the type species.

Phytopathogenic, causing small yellow to olivaceous green spots on leaves. Mycelium internal. Conidiophores aggregated in dense fascicles, arising through stomata, aseptate, i.e. usually reduced to conidiogenous cells, smooth, brown, subcylindrical to clavate, straight to curved due to thickening of the wall on one side, not geniculate, one to multiple conidiogenous loci located laterally or apically, loci conspicuous, thickened and broad, areolate, darkened and refractive. Conidia solitary, smooth, light brown, thin-walled, fusiform to obclavate-fusiform, straight to somewhat curved, septate, not constricted at the septa, apex obtuse and base truncate, hilum flattened, thickened, darkened and refractive.

Type species: Fusoidiella depressa (Berk. & Broome) Videira & Crous.

Notes: The morphology of the type species is quite unique and different from the closest phylogenetic species, Neopseudocercosporella capsellae. Fusoidiella depressa forms a single lineage in the phylogenetic analysis (Fig. 1, clade II).

Fusoidiella depressa (Berk. & Broome) Videira & Crous, comb. nov. MycoBank MB817146. Fig. 5.

Basionym: Cladosporium depressum Berk. & Broome, Ann. Mag. Nat....