全 文 ：菌 物 学 报 23（1）：18~19, 2004
Mycosystema
A NEW SPECIES OF CERCOSPORA CAUSING LEAF SPOT
OF MELIOSMA SP.
GUO Ying-Lan XU Li
(Systematic Mycology & Lichenology Laboratory Institute of Microbiology, Academia Sinica, Beijing 100080)
ABSTRACT: A new species, Cercospora meliosmae, on Meliosma sp. is reported. Latin diagnosis，illustration and
English description of the new species are provided. The type specimen is deposited in HMAS.
KEY WORDS: Cercospora, C. meliosmae, new species
Cercospora meliosmae Y. L. Guo & L. Xu, sp. nov. Fig.1
Maculae amphigenae, orbiculares, suborbiculares vel irregulares, 3~10 mm diam., griseo-albae, griseae
vel luteo-brunneae. Caespituli amphigeni. Stromata parva. Conidiophora 2~12 laxe fasciculata,
olivaceo-brunnea vel pallide brunnea, erecta vel curvata, 1~6-geniculata, non ramosa, 0~4-septata,
43.8~130.5 × 3.8~6.3 mm. Cicatrices conspicuae, 1.5~2.5 mm latae. Conidia acicularia, hyalina, erecta
vel curvata, ad apicem acuta, ad basin truncata, indistincte multiseptata, 37.5~145 × 2.5~5 mm.
Hab. in foliis vivis Meliosmae sp.: Limushan, Hainan Provincia, 24 III 1993, leg. Y. L. Guo, HMAS
82597, Holotypus.
Fig. 1 Cercospora meliosmae Y. L. Guo & L. Xu, sp. nov.

Leaf spots amphigenous, circular, subcircular to irregular, 3~10 mm diam., center pale grayish white,

Supported by the National Science Foundation of China ( No. 39899400)
Received:2003-05-21, accepted: 2003-07-25
DOI:10.13346/j.mycosystema.2004.01.005
1期 郭英兰等：引起泡花树属叶斑的尾孢菌属一新种 19
gray to yellowish brown, margin surrounded by a dark line, or with wider blackish brown margin, with pale
reddish brown halo on the upper surface, center pale gray, yellowish brown to brown, margin dark brown or
the whole spot brown, with yellowish brown halo on the lower surface. Fruiting amphigenous. Stromata
small or only a few brown globose cells. Conidiophores 2~12 loosely fasciculate, olivaceous brown to pale
brown, paler towards the apex, irregular in width, not branched, straight to curved, 1~6-geniculate,
subtruncate at the apex, 0~4-septate, 43.8~130.5 × 3.8~6.3 mm. Conidial scars conspicuously thickened,
1.5~2.5 mm wide. Conidia acicular, hyaline, straight to curved, apex acute to subobtuse, base truncate,
indistinctly multiseptate, 37.5~145 × 2.5~5 mm.
This fungus is the first report of a species of Cercospora on Sabiaceae.
This species differs from Pseudocercospora sabiae Y. L. Guo & W. X. Zhao (1989) on Sabia sp. in
Sabiaceae because the latter has external hyphae, narrower conidiophores (15~162 × 3.2~4.3 mm.),
indistinct conidial scars, and obclavate to cylindrical, pale olivaceous conidia.
ACKNOWLEDGEMENTS We are greatly indebted to Prof. G. S. Zhou for identification of host plant and to
Ms. X. F. Zhu for inking the line drawing.
[REFERENCE]
Guo Y L., Zhao W. X.. 1989. Studies on hyphomycetes of Zhangjiajie in Hunan I. Pseudocercospora . Acta Mycol. Sinica
8: 118~122
引起泡花树属叶斑的尾孢菌属一新种
郭英兰 徐 莉
（中国科学院微生物研究所真菌地衣系统学开放研究实验室 北京 100080）
摘 要：报道寄生在清风藤科 Sabiaceae 泡花树属 Meliosma sp. 植物上尾孢菌属的一个新种：泡花树
尾孢 Cercospora meliosmae。尾孢菌属真菌在清风藤科尚属首次报道。文中为新种提供了拉丁文简介、
图及英文描述，模式标本保存在中国科学院微生物研究所菌物标本馆(HMAS)。
关键词：尾孢菌属，泡花树尾孢，新种
中图分类号：Q939.5 文献标识码：A 文章编号：1672-6472（2004）01-0018-0019