Abstract: The causal organism of Chinese fir anthracnose has been proved to be a species of Colletotrichum. Acervuli mostly hypophyllous, subepidermal, erumpent, cushion shaped, 50-170 μ in diameter; setae among the conidiophores, dark brown, 50-120 by 4.5 μ; conidiophores simple, septate, 15-60 by 4.5 μ; conidia hyaline, oblong, 1-celled, 15-19.5 by 4.8-6.6 μ. In germination, the conidia become uniseptate and at the apex of the germ tubes usually develops a dark irragular-shaped appresoria.Numerous perithecia were observed on the dead needles infected with Chinese fir anthracnose fungus kept in the moist chamber for 15-30 days at the room temperature of about 15℃. Perithecia subepidermal, erumpent, subspherical to pyrif-ormed, hairy, grouped or single, 250-350 by 194-267 μ; asci clavate, sessil, 85.8-112.2 by 7.2-9.9 μ, evanescent, disappearing soon after the spore mature; ascospores oblong to elliptic, slightly curved, hyaline, 1-celled, 19.8-27.7 by 5.6-6.6 μ. According to morphology, this fungus appears to be a species of Glomerella, possibly G. cingulata,Isolations of single ascospores produced colonies of a species of Colletotrichum which was similar to the fungus isolated from Chinese fir needles. Inoculations of Chinese fir needles with the ascospores and conidia isolated and cultured from thesingle ascospore respectively resulted in the same symptoms as observed in the fields. These facts show that the Colletotrichum sp. and the Glomerella sp. observed on the needles of Chinese fir are the conidium stage and perithecium stage of the same fungus.Cross inoculations with Chinese fir anthracnose fungus, Gloeosporium fructigenum and Colletotrichum camelliae (the latter two are the conidium stage of Glomerella cingulata) on Chinese fir needles, fruits of apple and Camellia oleifera gave positive results. The pathogenicity of the Chinese fir anthracnose fungus was more similar to the apple bitter rot fungus rather than to Colletotrichum camelliae. Infections can also be observed on the leaves of Cinnamomum camphora, Ligustrum lucidum and Camellia sinensis when artificial wound inoculations are done on them with the Chinese fir. anthracnose fungus.According to morphology and pathogenicity, the Chinese fir anthracnose fungus should be identified as a strain of Glomerella cingulata (stonem) S. et S., and Chinese fir should be regarded as a new host of this fungus.