A few relic species or their descendants might be traced to their origin of the Tethys,mainly the Gondwanaland, that are very important data for explaining the origin of flora in the studied arca.

• 少数残遗种或其后裔可追溯到它们的古地中海起源，特别是古南大陆起源，这对说明所研究地区的植物区系起源是很重要的资料。