Abstract: Based on extensive collecting the ectomycorrhizal fungi from the subalpine coniferous forest region, N. W. Yunnan are reported. The ectomy- corrhizal fungi relating to the subalpine conifers and their morphological and anatomical characteristics have been compared. The investigation results indicated that the subalpine conifers were mainly associated with Boletaceae, Cortinar-iaceae, Amanitaccae, Russulaceae and Hymenogastraceae. The ectomycorrhizal fungi associated with Abies georgei Orr. belong mostly to Boletaceae, cspecially Tylopilus indecisus (PK.) Murr. and Boletus erythropus Fr. ex Fr. The Amanitaceac and Russulaccae seem to constantly form ectotrophic mycorrhizae with Picea likiangensis Pritz.

Key words: Ectomycorrhize

摘要： 本文报道了滇西北亚高山针叶林带的外生菌根调查工作。对一些亚高山针叶树种的外生菌根及其形态学和解剖学等方面进行了比较。调查结果表明，该地主要树种如长苞冷杉(Abies georgeiorr) 、丽江云杉（Picea likiangensis Pritz)、高山松(Pinus densata Mast) 、垂枝云杉(Picea brachytyla(Fr·) Pritz．）以及少数大果红杉(Larix potaninii Batal．）与担子菌类真茵形成外生菌根。长苞冷杉根系所形成的菌根形态多为棍棒型；丽江云杉的菌根形态多为单轴式分枝型；高山松的菌根形态都是二叉状分枝型。

关键词: 外生菌根, 亚高山针叶林