Molecular phylogenetic analyses of a multigene matrix of partial nuSSU-ITS-LSU rDNA, rpb2 and tef1 sequences were performed to investigate the phylogenetic relationships of Corynespora, Exosporium and Helminthosporium species. Based on phylogenetic analyses and morphology, the genus Exosporium is synonymised with Helminthosporium, and the genus Corynespora is revealed as polyphyletic. Corynespora smithii is confirmed to be closely related to the generic type C. cassiicola and its morphology is described and illustrated. Exosporium tiliae, Corynespora caespitosa, C. endiandrae, C. leucadendri and C. olivacea are recognised in Helminthosporium, and Splanchnonema quercicola and S. kalakadense are combined in Helminthosporium. Based on pure culture studies and DNA sequence data, Massaria heterospora and Massarinula italica are shown to be the sexual morphs of Helminthosporium tiliae and H. microsorum, respectively. European accessions of Splanchnonema quercicola are recognised to differ from the North American type and are described as Helminthosporium quercinum. The sexual morph of H. oligosporum is recorded and described for the first time. The generic type of Helminthosporium, H. velutinum, is epitypified with a recent collection from the type host, Fagus sylvatica. Based on sequence data, Helminthosporium genistae is recognised as a distinct species. Several species for which subperidermal stromata have been reported are shown to be fungicolous on Diaporthales, the “stromata” representing aborted and transformed host stromata or conidiomata: H. caespitosum, H. microsorum, H. quercicola and H. quercinum on Coryneum spp.; H. hispanicum on conidiomata of Juglanconis juglandina; H. juglandinum on conidiomata of Diaporthe sp.; H. oligosporum and H. tiliae on Hercospora tiliae. The newly described H. austriacum is fungicolous on Amphisphaeria cf. millepunctata (Xylariales).

对部分 nuSSU-ITS-LSU rDNA、rpb2 和 tef1 序列的多基因基质进行分子系统发育分析，以研究棒孢属、外孢子属和蠕孢菌属物种的系统发育关系。基于系统发育分析和形态学，外孢子属与蠕孢菌属同义，而棒孢属被揭示为多系。Corynespora smithii被证实与普通类型C. cassiicola密切相关，并对其形态进行了描述和说明。外孢子虫Corynespora caespitosa、C. endiandrae、C. leucadendri和C. olivacea在Helminthosporium中被识别，Splanchnonema quercicola和S. kalakadense在Helminthosporium中组合。基于纯培养研究和 DNA 序列数据，Massaria heterospora和Massarinula italica被证明分别是Helminthosporium tiliae和H. microsorum的有性变体。Splanchnonema quercicola的欧洲种质被认为与北美类型不同，并被描述为蠕虫栎。H. oligosporum的有性形态首次被记录和描述。Helminthosporium的通用类型H. velutinum以最近收集的来自类型宿主Fagus sylvatica的集合为代表。基于序列数据，Helminthosporium genistae被认为是一个独特的物种。据报道，有几种表皮下基质在 Diaporthales 上具有真菌性，“基质”代表流产和转化的宿主基质或分生孢子：H. caespitosum、H. microsorum、H. quercicola和H. quercinum在棒状属植物上；H. hispanicum on 胡桃核桃的分生孢子；H. juglandinum on Diaporthe sp.的分生孢子；H. oligosporum和H. tiliae在Hercospora tiliae上。新描述的H. austriacum在Amphisphaeria cf.上是真菌性的。千层花( Xylariales )。