贵州杨梅属2种植物幼苗形态学特征的比较研究

对贵州杨梅 (Myricarubra)、矮杨梅 (M .nana) 2种杨梅属植物幼苗进行比较研究 ,结果是 :(1)杨梅幼苗子叶出土、具光合作用 ,矮杨梅幼苗子叶留土或半出土、具吸收作用是两者区别的要点 ;(2 )参照幼苗类型新的划分标准 ,提出了 2种植物幼苗分别归属于槐型 (SaphoraType)和樟型 (CinnamomumType) ;(3)不同变异类型矮杨梅幼苗形态存在差异 ,但其差异不如成年植株明显 ,一些类型表现的差异与成年植株存在相关性。

A comparative study on morphological characteristics of two species of Myrica

Morphological characteristics of Myrica seedlings were compared between Myrica rubra and Myrica nana. The results are:1)cotyledons of M. rubra germinate out of soil with photosynthetic capacity, while cotyledons of M. nana germinate out or half out of soil with absorption capacity; 2)according to new criteria of seedling type classification, seedlings of M. rubra and M. nana are Sahora Type and Cinnamomum Type respectively; 3)there is a difference between seedlings of variant types of M. nana, however this difference is more obvious between mature plants. The differences between some variant types of M. nana are correlative with mature plants.