摘要
通过光镜和扫描电镜对新疆产裸果木亚科３属６种植物的花粉形态进行了观察与研究。结果表明：花粉形态有三种类型，裸果木属为散孔类型，治疝草属为三孔类型，拟漆姑草属为三沟类型．具孔类型中，萌发孔边缘界限不清楚，孔膜不明显，颗粒状纹饰；具沟类型中，萌发沟上有膜覆盖，具颗粒状纹饰。根据花粉形态，编出分属检索表，并讨论了花粉形态在分类中的作用以及各属之间的亲缘关系．
This paper deals with pollen morphology of 3 genera 6 species of subfamily Paronychioideae by LM and SEM. 1. There are 3 types in this subfamily: (1)SPergularia 3colpus. (2) Herniaria 3 -aperturate, (3)Gymnocarpos: polybrochate. 2. In type of aperturate, boundery of the aperturate is, nuclear,membrance of the aperturate,is nobrious or none. In type of colpus,memberance of colpus is brious. 3. In genera of Spergularia and opmnocarpos, the exine ornamentation is grannies. In genera of Hemiaria,the exine ornamentation is irregulate verruacte or grannies around aperturate.In this paper, key to genera of this subfamily is provided, the meaning of pollen morphology in classification and generia phylogeneric relationship in the subfamily is disscused.
出处
《西北植物学报》
CAS
CSCD
北大核心
1996年第1期61-64,共4页
Acta Botanica Boreali-Occidentalia Sinica
