【摘要】 报道生于夹竹桃科（Ａｐｏｃｙｎａｃｅａｅ）植物上的链格孢新种２个、新变种２个，即络石链格孢（Ａｌｔｅｒｎａｒｉａ　ｔｒａｃｈｅｌｏｓｐｅｒｍｉ　Ｔ．Ｙ　Ｚｈａｎｇ，Ｘ，Ｆ，Ｌｉｎ　ｅｔ　Ｗ．Ｑ．Ｃｈｅｎ）、细极链格孢络石生变种［Ａ．ｔｅｎｕｉｓｓｉｍａ（Ｎｅｅｓｅｘ　Ｆｒ．）Ｗｉｌｔｓｈｉｒｅｖａｒ．ｔｒａｃｈｅｌｏｓｐｅｒｍｉｃｏｌａ　Ｔ．Ｙ．Ｚｈａｎｇ，Ｘ．Ｆ．ＬｉｎｅｔＷ．Ｑ．Ｃｈｅｎ］、细极链格孢长春花变种［Ａ．ｔｅｎｕｉｓｓｉｍａ（ＮｅｅｓｅｘＦｒ．）Ｗｉｌｔｓｈｉｒｅｖａｒ．ｃａｔｈａｒａｎｔｈｉＴ，Ｙ．ＺｈａｎｇｅｔＸ．Ｆ．Ｌｉｎ］和长春花生链格孢（Ａ.ｃａｔｈａｒａｎｔｈｉｃｏｌａＴ．Ｙ．Ｚｈａｎｇ），及生于番木瓜科（Ｃａｒｉｃａｃｅａｅ）植物上的番木瓜链格孢（Ａ．ｃａｒｉｃａｅ　Ｔ．Ｙ．Ｚｈａｎｇ，Ｗ．Ｑ．Ｃｈｅｎ　ｅｔ　Ｘ．Ｆ．Ｌｉｎ）．新种和新变种均有拉丁文特征描述，并附绘图．新分类单位的模式标本分别存放在西北农业大学真菌标本室（ＨＭＵＡＢＯ）和山东农业大学植物病理标本室（ＨＳＡＵＰ）．更多还原

【Abstract】 Three new species, two new varieties of Alternaria are reposed. They are Alternariatrachelospermi T. Y. Zhang, X. F. Lin et W. Q. Chen, A. tenuissima (Nees ex Fr.) Wiltshire var.trachelospermicola T. Y. Zhang, X. E Lin et W. Q. Chen, A. tenuissima (Nees ex Fr.) Wiltshirevar. catharanthi T. Y. Zhang et X. F. Lin and A. catharanthicola T. Y. Zhang on plants ofApocynaceae, and A. caricae T. Y. Zhang, W. Q. Chen et X. E Lin on Caricaceae. Latin diagnosesand Illustrations of the new taxa are provided. The type specimens of the new taxa are deposited inMycological Herbarium of Northwestern Agricultural University (HMUABO) and Herbarium ofShandong Agricultural University: Plant Pathology (HSALJP), respectively.更多还原