四川省金汤孔玉自然保护区种子植物区系分析

据初步调查，金汤孔玉自然保护区内的种子植物共381种．分属201属、68科。其中科可划为12个分布型或变型，属可划为23个分布型或变型。对科、属的区系分析结果表明，泛热带和温带性质的科占74．07％，热带性质的属占总属数的32．59％，北温带分布型的属占总属数34．25％，其他温带性质的属占总属数的15．47％；本地区与东亚一北美间断、东亚和墨西哥间断、地中海区、西亚一中亚、中亚一喜马拉雅、东亚、中国一喜马拉雅、中国一日本等分布区联系紧密。保护区有5种地域性特有种。区系特点是以温带性质为主、兼有热带性质，并具有起源的古老性、成分的复杂性、地理联系的广泛性。

Study on Spermatophyte Flora of the Jintang Kongyu Nature Reserve in Sichuan Province

According to the preliminary investigation and collected documents, the spermatophyte flora of the Jintang Kongyu nature reserve consists of 381 species in 201 genera of 68 families. These families can be divided into 12 distribution types (or subtypes), and genera into 23. In families, Pan tropic and temperate distributed components occupy 74.07% of total. In genera, tropic components occupy 32.59% of total, north temperature zone distribution types occupy 34.25% of total, and other temperature zone components occupy 15.47% of total. This flora has a tight relationship with the following distribution types: E. Asia N. American disjunction, E. Asia Mexico disjunction, Mediterranean, W. Asia C.Asia, C. Asia Himalaya, E. Asia, Sino Himalaya, Sino Japan, etc. This flora has 5 endemic species in Hengduanshan region or Sichuan. This flora has temperature tone property mostly and tropic property concurrently, and has an archaic origination, complicated elements, universality in geography connection.