Tubiform petal and its formation of paeonia suffruticosa and p . lactiflora 牡丹和芍药的筒状花瓣及其形成
2.
On basis of the facts that all tubiform petal only occurs in the highflower of prolification flower ; and except the tubiform petal , the rest of the highflower petals always have the transforming development carpellary disc in the dorsal base ; as well as there are distinctive shape and anatomy structure , a viewpoint that the tubiform petal corns from the together petaloid developing of carpel and carpellary disc has been put forward . furthermore , the jointly petaloid development process and feature of the tub 基于筒状花瓣仅仅出现在部分台阁化程度较高的台阁型花的上方花中，而且在上方花中多数过渡态花瓣背面的基部，常常出现形状和大小各异的瓣化了的房衣，以及筒状花瓣横切面特殊的形态和细胞组织特征，提出筒状花瓣是心皮和房衣组织原细胞共同分裂瓣化并联合发育形成的观点。
3.
( 4 ) the tubiform petal of p . suffruticosa andr . and paeonia lactiflora pall , is a special petal which only has been occurred in the highflower of pralification flower of the above two species . the petal is similar to corolla of some family of sympetalous dicotyledon in shape , however it has a more thin base and many different lobes in form and size （ 4 ）在对台阁花型的研究中新发现了一种特殊的花瓣一筒状花瓣，它具有筒状结构，外形类似于一些合瓣花类植物的花冠，但筒的基部更细，向上变粗，口部边缘变化较大，具形状和大小各异的裂片，有的呈喇叭形，有的呈钟形，筒内壁上有时具一顶部游离的芒状物。
