本文对青海助柱花属３种５居群的染色体进行了计数，其中短药肋柱花的染色体数目为首次报道。所研究的各种各居群染色体基数均为８。结合以......

Thirteen xanthones were isolated from L.rotatum,which were established as l,8-dihydroxy-3,4,5-trimethoxyxanthone(1);l-hy......