南京林业大学学报（自然科学版）Issue(z1)：13-16,4.DOI:10.3969/j.issn.1000-2006.2014.S1.003
木瓜属及其近缘属的花粉形态及系统学意义
Pollen morphology and phylogenetic significance of Pseudocydonia and related genera
摘要
Abstract
The pollen morphology of Pseudocydonia, Chaenomeles and Cydonia were studied with the aid of scanning e-lectron microscope (SEM). Pollen grains were N3 P4C3type according to G. Erdtman�s N. P. C system, radio symmetric prolate or rarely perprolate, with the sizes of 33.24-48.27 μm (P)×18�93- 25.58 μm (E) in Chaenomeles, 37.15-42.50 μm (P)×21.74-24.86 μm (E) in Pseudocydonia, and 36.85-43.95 μm (P) ×19.63-22.83 μm (E) in Cydonia. The exine sculpture was striate in Chaenomeles and Pseudocydonia ( stripes irregular in the former but nearly parallel in the latter) , while nearly smooth in Cydonia. The results demonstrated that palynological characters were valu-able in recognition of taxa in specific and genera level and agreed with the separation of Chaenomeles and Pseduocydonia. The pollen submicroscopic characters of six species in three genera were described, and a key was compiled for them.关键词
木瓜属/贴梗海棠属/榅桲属/花粉形态/系统学意义Key words
Pseudocydonia/Chaenomeles/Cydonia/pollen morphology/phylogenetic significance分类
农业科技引用本文复制引用
臧德奎,马燕..木瓜属及其近缘属的花粉形态及系统学意义[J].南京林业大学学报（自然科学版）,2014,(z1):13-16,4.基金项目
国家自然科学基金项目 （）
