中国繁缕属的一些分类问题

研究了36种中国产繁缕属(Stellaria)植物，根据模式材料或仅根据原描述，将已合格发表的1组、l系、12种、4变种和1变型首次归并到有关各类，依次列举人异名录中，其中有1移属。讨论了各种错误鉴定，同时对于选择性状、设想进化过程和分布记录均有讨论.

NEW DITERPENE ALKALOIDS FROM SPIRAEA JAPONICA VAR. ACUMINATA

From Sarcococca ruscifolia, the mixed crystal of sarcorucinine A and A1 were ob-tained, but was very difficulty in separating. The structure of sarcorucinine A was determined by X-ray analysis for the mixed crystal. Compounds 3 and 4 were isolated from the reduction of mixed crystal with LiAlH4, and their structures were elucidated on the basis of the interpre-tation of MS, IR, 1H, and 13C NMR spectra. Thus, the structrue of sarcorucinine A, could be deduced as A''△^16 3a-dimethylamino-20α-methylmethylamido-pregnene (2), and was further comfired by FAB-MS / MS spectra. The structure of the sarcorucinine B was deduced by us-ing the same spectroscopic analysis. The present paper deals with the application of FAB-MS / MS technique in structural elucidation of sarcorucinine A, A　 and structural elucidation of sarcorucinine B.