摘要
本文讨论了菊科植物上盘霜霉属Bremia的分类问题。根据专性寄生菌种的划分,在以形态特征为基础的同时,结合考虑寄生专化性或寄主范围的观点,我们提出菊科植物上Bremia的种的寄主限制在菊科“族”的范围内。对中国的菊科植物上Bremia属的已知种及变种列出了检索表,还报告了一个新种及一新组合,它们是兔苣盘霜霉(B.lagoseridis sp.nov.),寄生于兔苣(Lagoseris sanctae),和蓟盘霜霉(B.cirsii comb.nov.),寄生于蓟属(Cirsium spp.),标本保存于四川农业大学真菌实验室及中国科学院微生物所标本室。
This paper mainly deals with the taxonomical problems in Bremia on Compositae. Based on the authors' view-point: the morphological characteristics of obligate parasitic fungi are provided the chief criteria for species delimitation, and the specificity or host range being considered in conjunction with morphology. The host range of each species of Bremia on Compositae to be limited in the single 'tribe' of host are suggested. Key to the known species and varieties of the genus Bremia on Compositae from China is presnted. One new species and one new combination are reported as Bremia lagoseridis Yu & Tao (on Lagoseris sancta) and Bremia cirsii (Jaczewski ex Uljanish.) Tao & Yu (on Cirsium spp.). All the specimens cited in this paper are deposited in the Mycological Laboratory of Sichuan Agricultural University and Herbarium Mycologicum Academiae Sinicae (HMAS), Beijing.
出处
《真菌学报》
CSCD
北大核心
1992年第2期89-95,共7页
基金
国家自然科学基金
关键词
盘霜霉属
菊科
分类单克
Bremia
Bremia cirsii
Bremia lagoseridis
Compositae
