A Cytological Study of Fifteen Species in Six Genera of Liliaceae from Yunnan A STEROIDAL GLYCOALKALOID OF NOTHOLIRI0N BULBULIFERUM Glycosidal Steroidal alkaloids from Notholirion bulbuliferum A KARYOTYPICAL STUDY IN NOTHOLIRION FROM YUNNAN A MORPHOLOGICAL STUDY ON SOME SEEDS OF LILIEAE Study on the tissue culture of Notholirion bulbuliferum Genetic Relationships of Notholirion and Genetic Diversity of N.bulbuliferum in China Revealed by ISSR Markers