Poplars from Aigeiros Daby section are very widespread in the world. A range of morphological characters were studied in such species of this section as Populus deltoides Bartram ex Marshall, P. nigra L. and their hybrid P. × canadensis Moench. However, there is little information about micromorphological characters of their leaves. The aim of this work was to study these characters and understand their species-specific potential. Thus, the morphological features, density and distribution of non-glandular trichoms, marginal glandular trichomes (salicoid teeth or coleters), epiglandular trichomes and basilaminar nectaries-glands were ontogenetically examined by both light and scanning electron microscopy in the certified by molecular markers P. deltoides, P. nigra and P. × canadensis samples. Non-glandular trichomes belong to the uni-, multicellular, uniseriate category. Marginal glandular trichomes can be classified as coleter types. Other morphological and anatomical trichome features are discussed with regard to their possible function. In summary, some variations in leaf morphology may be useful for the P. nigra, P. deltoides and their hybrid P. × canadensis species identification. These species differ in shape and number of basilaminar glands, as well as non-glandular trichome types and their distribution on the leaf.

中文翻译：

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黑杨，黑毛杨Bartram ex Marshall及其杂种的叶片毛状体，牙齿和腺体的比较研究

来自Aigeiros Daby地区的白杨在世界上非常普遍。的形态特征的一系列本节中的这样的种类进行了研究如美洲黑巴特拉姆前马歇尔，P.黑L.及其杂交P. ×飞蓬Moench。然而，关于它们的叶子的微观形态特征的信息很少。这项工作的目的是研究这些字符并了解其特定物种的潜力。因此，通过光和扫描电镜在分子标记P的认证下，对个体的非腺毛状体，边缘腺毛状体（类齿状牙齿或直立结肠），epi上毛状体和基底类蜜腺的形态特征，密度和分布进行了个体发育检查。三角洲，黑斑病和加拿大×加拿大样品。非腺毛属于单细胞，多细胞，不健康的一类。边缘腺毛可以被分类为col突类型。讨论了其他形态和解剖上的毛状体特征可能具有的功能。总之，在叶子形态一些变型中可以是用于有用P.黑，P.黑杨及其杂交P.×飞蓬物种鉴定。这些物种在基底节腺的形状和数量，以及非腺毛的类型及其在叶片上的分布都不同。