In 2007 a new Stemphylium leaf spot disease of Beta vulgaris (sugar beet) spread through the Netherlands. Attempts to identify this destructive Stemphylium sp. in sugar beet led to a phylogenetic revision of the genus. The name Stemphylium has been recommended for use over that of its sexual morph, Pleospora, which is polyphyletic. Stemphylium forms a well-defined monophyletic genus in the Pleosporaceae, Pleosporales (Dothideomycetes), but lacks an up-to-date phylogeny. To address this issue, the internal transcribed spacer 1 and 2 and intervening 5.8S nr DNA (ITS) of all available Stemphylium and Pleospora isolates from the CBS culture collection of the Westerdijk Institute (N = 418), and from 23 freshly collected isolates obtained from sugar beet and related hosts, were sequenced to construct an overview phylogeny (N = 350). Based on their phylogenetic informativeness, parts of the protein-coding genes calmodulin and glyceraldehyde-3-phosphate dehydrogenase were also sequenced for a subset of isolates (N = 149). This resulted in a multi-gene phylogeny of the genus Stemphylium containing 28 species-clades, of which five were found to represent new species. The majority of the sugar beet isolates, including isolates from the Netherlands, Germany and the UK, clustered together in a species clade for which the name S. beticola was recently proposed. Morphological studies were performed to describe the new species. Twenty-two names were reduced to synonymy, and two new combinations proposed. Three epitypes, one lectotype and two neotypes were also designated in order to create a uniform taxonomy for Stemphylium.

2007年，一个新的匍柄的叶斑病甜菜（甜菜）通过荷兰蔓延。试图鉴定这种破坏性的茎秆属菌。甜菜中的甜菜碱导致该属的系统发育改变。推荐使用Stemphylium这个名字，而不是它的多形性变种Pleospora。Stemphylium在古菌科Pleosporales（Dothideomycetes）中形成明确的一类属，但缺乏最新的系统发育。为了解决这个问题，内部转录的间隔区1和2以及所有可用的茎和叶中间的5.8S nr DNA（ITS）插入对来自Westerdijk研究所的CBS培养物收集物（N = 418）以及从甜菜和相关寄主中获得的23种新鲜收集的分离物中的菌属菌株进行测序，以构建概述系统发育史（N = 350）。基于它们的系统发育信息，还对部分分离株的蛋白质编码基因钙调蛋白和甘油醛-3-磷酸脱氢酶的部分进行了测序（N = 149）。这导致了茎杆菌属的多基因系统发育，包含28个种系，其中5个被发现代表新种。大多数甜菜分离株，包括来自荷兰，德国和英国的分离株，聚集在一起，形成一个名为S. beticola的物种进化枝。是最近提出的。进行了形态学研究以描述新物种。22个名称被简化为同义词，并提出了两个新的组合。还指定了三种表型，一种选型和两种新型，以便为Stemphylium创建统一的分类法。