植物研究2017，Vol.37Issue(4)：481-491,11.DOI:10.7525/j.issn.1673-5102.2017.04.001
国产柳属繁柳组植物叶脉序研究及其分类学意义
Leaf Venation and its Taxonomical Significance in Sect.Denticulatae (Salix) of China
摘要
Abstract
Comparative observation on leaf venation of 17 species and 1 variety from Salix Sect.Denticulatae were made performed in order to provide new morphological evidence for the classification of Salix by the means of this section.The results showed that the venation of all taxa was found to be craspedodromously pinnate.Most species have intersecondary veins.Tertiary and higher level veins were divided into three types.The areoles are regular or irregular.Veinlets are branched or absent.The results also indicated that the areoles and veinlets were stable characters which showed significant differences bwteeen species.Based on the UPGMA analysis for venation pattern of Sect.Denticulatae C.K.Schneid.,S.praticola Hand.-Mazz.ex Enander types and S.delavayana Hand.-Mazz.types were founed.Leaf venation characters provides new characters.They could be used,therefore,as important diagnostic features for identifying these species.关键词
柳属/繁柳组/脉序/分类学Key words
Salix/Sect.Denticulatae/leaf venation/taxonomic significance分类
农业科技引用本文复制引用
孟祥玉,于慧莹,张志翔..国产柳属繁柳组植物叶脉序研究及其分类学意义[J].植物研究,2017,37(4):481-491,11.基金项目
国家自然科学基金项目(J1310002,31110103911) （J1310002,31110103911）
科技部科技基础性工作专项(2013FY112100)Nature Science Foundation of China(J1310002,31110103911) （2013FY112100）
Science and Technology Basic Work(2013FY112100) （2013FY112100）
