New species in section and an overview of section .

sections and are accommodated in the subgenus . In the present study, a polyphasic approach using morphology and multi-gene phylogeny was applied to investigate the taxonomy of these two sections. Based on the phylogenetic analysis, section includes 25 species, which can be assigned to four series: , , and is newly described in this section and this species was isolated from a cigarette from PR China and belongs to series . It is clearly distinct from other members in this series based on ITS, , and sequences. section members like and are important opportunistic pathogens, it is speculative that more pathogenetic species will be found by using polyphasic taxonomy approaches. section includes five species, the growth rates on agar media and size and ornamentation of conidia are important characters for differentiating species in section .