试论落葵科的苞片和花被

THE FLOWER STRUCTURE OF THE BRACTS AND PERIANTH OF BASELLA FAMILY(BASELLACEAE)

关于落葵科(Basellaceae)花的苞片和花被,在各种文献中常有不同的记述。常见如: 1.苞片小,小苞片2,花被片(花萼片)5片; 2.苞片3,小苞片2,萼5; 3.苞片宿存或早落,小苞片2对,交互对生,下面一对较小,上面一对较大,花萼(花被)5裂(Anredera属); 4.花生于苞腋,花梗的苞片2,小,对生,萼片(小苞片)2,分离或基部连合,花瓣(花被片)5; 5.苞片和小苞片各2片,萼片5;或花的基部有苞片4,花被5或5裂。以上种种记述,各不相同,互有出入,究其原因,不外因各人对苞片。

In this Paper, the author has discussed the flower structure of the bracts and Perianth of Basella Family (Basellaceae) which has been for long time in confusion. It is based on my own observation that the following description is more near to the fact, “bracts 3, bracteoles 2, sepals 5”.