阴山荠属,泡果荠属,棒毛荠属和岩荠属的扫描电镜观察

以阴山荠属、泡果荠属、棒毛荠属和岩荠属的18种植物取用实验材料,对果实外表皮、种子外种皮、毛和花粉粒等特征鉴别器官进行扫描电镜观察,提供36张照片资料,并以检索性状比较属间特征,证明该4属作为各自独立的属是恰当的。

OBSERVATION ON THE GENERA YINSHANIA, HILLIELLA, COCHLEARIELLA AND COCHLEARIA (CRUCIFERAE) BY SEM

We made a observation and comparison of the characters of some organs (fruit (or overy) , seed, hair and pollen grain) of the genera Yinshania Ma et Y. Z. Zhao, Hilliella Y. H. Zhang et H. W. Li, Cochleariella Y. H. Zhang et R. Vogt and Cochlearia L. s. str. by SEM. It reached a conclusion tbat these taxa are reasonable to be regarded as the separate genus respectively. Yinshania, Hilliella and CochlearieIla are quite different from Cochlearia, not only in the habit but in the other characters, especially in the minute pustule or cluformal hair of valve, as well as the geographical distribution. The three former are endemic taxa in China. There are also some differences in the morphology characters of pollen grain,seed, leaf and hair among three former, as well as the geographical distribution.