ANATOMIA CANTITATIVĂ A LAMINEI FRUNZEI LA UNELE SPECII DE CLEMATIS L.

Valentin CODREANU Grădina Botanică (Institut) a AŞM

Abstract

CANTITATIVE ANATOMY OF LEAF BLADE OF SOME CLEMATIS L. SPECIES

As a result of quantitative anatomic study of leaf blade of 5 species of genus Clematis L., is established that anomocytic morphological type of stomatal apparatus (complex) is characteristic for the abaxial and adaxial epidermis. Stomatal density of leaf epidermis of clematises is specific, but varies in different years. The density of leaf stomata characterizes every species and varies, in drought 2007 year, from 119,05/mm2 at species Clematis vitalba to 182,05 stomata/mm2, at species C.tangutica. The greater average thickness of leaf blade and present of stomata in adaxial epidermis of leaf blade evidence more drought resistant species of clematises. Keywords: anatomy of leaf blade, density of stomata, drought resistance, Clematis L. species.