摘要
本文报道了中国北部新分布的水盾草科(Cabombaceae)植物。过去根据蔬菜属(Brasenia)将水盾草科译为莼菜科是不恰当的,因为水盾草科的命名模式为水盾草属(Cabomba),故建议将Cabombaceae译为水盾草科。 本文概述了水盾草科的系统分类位置,讨论了莼菜的化石与现代分布样式,认为冰期气候是影响其分布的主导因子。同时根据幼苗的形态特征,按重演论观点,推测了莼菜的起源,其祖先可能是毛莨科的古植物。此外,还研究了莼菜花部的昼夜沉浮节律,冬芽的结构和生态适应及胶被的特征和功能等。
The systematic classify of Cobombaceae is summarized. The fossilsand modern distributional pattern are discussed, the climates during gla-ciers was the main factors affected it. In the light of the recurtheory todeduce the origen of Brasenia schreberi from morphological features of it'sseedling, the ancestor would be the palaeoplant of Ranunculaceae by infe-rence. In addation, the ryhthm of flowers sink when nght and emerge whendaytimes is studied. The struture and ecological adaptation of winterbudas well as the character and function of the colloid are probed into.
出处
《植物研究》
CAS
CSCD
北大核心
1991年第4期99-105,共7页
Bulletin of Botanical Research
