In seed plant flora, the floristic composition is dominated by the temperate elements, which have tight relation to tropic elements. 种子植物区系以温带成分占优势，与热带成分有紧密的联系。
Finally, the origin, evolution and development of the Sichuan spermatophyte flora were discussed, and its floristic regionalization was summarized. 最后，深入讨论了四川种子植物区系的起源演化与发展，并对四川种子植物区系进行了分区。
