Anatomical and Micromorphological Investigations on Turkish Endemic Marrubium cephalanthum subsp. montanum (Lamiaceae)

Year 2018, Volume: 13 Issue: 2, 97 - 104, 30.06.2018

Tulay Aytaş Akcin Burcu Camili

Abstract

M. cephalanthum subsp. montanum
is a endemic subspecies which grows on steppe and rock slopes of Northern
Anatolia. In this study, anatomical and micromorphological characters of Marrubium cephalanthum Boiss. & Noe
subsp. montanum Akgül & Ketenoğlu
were observed.  In anatomical studies,
cross-sections of the root, stem, leaf and the surface sections of leaves were
determined. It was observed that the root of the investigated taxon had a
secondary thickening. Collenchyma layer in stem was prominent. The leaf is
dorsiventral and amphistomatic. For the micromorphological studies, the dried
stem, leaf, calyx and nutlet samples were examined using scanning electron
microscope (SEM). Eglandular trichomes were mostly observed on the stem, leaf
and calyx. Glandular trichomes are present more sparsely on these organs of
investigated taxon. In addition, the nutlet surface is reticulate. 

Keywords

Anatomy, Marrubium, SEM, trichome, endemic

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