甘肃忍冬科植物区系地理

THE FLORISTIC GEOGRAPHY OF PLANTS OF HONEYSUCKLE (CAPRIFOLIACEAE) FAMILY IN GANSU

对甘肃产忍冬科植物8属59种8变种及3亚种（不包括引种栽培的1属和3种）*进行了统计，并计算甘肃与邻近省的相似性系数，与陕西省的最大，为0．41；而与西藏的为最小，仅为0．14。陇南西部河谷亚热带湿润区和陇南北部暖温带区是甘肃产忍冬科植物种类最为丰富的地区。同时，对甘肃产忍冬科植物进行了属、种分布区类型的划分，属的分布区类型可划分为：旧世界温带分布、温带亚洲分布、东亚分布和中国特有4个类型。种的分布类型可划分为：中国特有、东亚分布、温带亚洲分布和旧世界温带分布。从该科植物在甘肃的分布来看，绝大多数种类都不超过中国4个植物亚区在甘肃的交汇点，与中国植物区划基本相符，并可确切说此交汇点应在兰州的永登县附近。

The plants of honeysuckle family have 8 genera and 59 species, 8 varieties and 3subspecies,but not include cultivated 1 genus and 4 species in Gansu province. The author calculated the similarity coefficient of the plants of honeysuckle family about Gansu and other provinces around it. The similarity coefficient of Gansu and Shaanxi is the largest and that of Gansu and Tibet is the smallest. The distribution types of genera and species are divided and discussed. From the analysis of the distribution types of 70species in Gansu,it is found that Longnan of Gansu is of great abandance about the distribution of plants of honeysuckle family of Gansu and it is found that the most plants of honeysuckle family of Gansu distribute in South of the point of 4 plant sub-kingdom of China.