Anatomy of three Onosma species from Turkey

Authors

  • Oznur Ergen Akcin Department of Biology, Science & Art Faculty, Ordu University, Ordu, Turkey
  • Riza Binzet Department of Biology, Sciences & Art Faculty, Mersin University, 33343, Mersin, Turkey

DOI:

https://doi.org/10.3329/bjb.v48i2.47677

Keywords:

Onosma, Anatomy, Endemic

Abstract

Three Onosma L. species (O. papillosa Riedl, O. rutila Hub-Mor. and O. auriculata Aucher ex DC.) were examined anatomically. All these taxa had secondary root structure and xylem which were composed of sclerenchymatic cells and tracheary elements. O. papillosa has crystals and sclereids in the stem and leaf. Sand crystals are seen in the pith region of O. auriculata. O. papillosa and O. auriculata has bifacial leaf types and O. rutila has equifacial type. Stomata are anisocytic, anomocytic and staurocytic. These species have long and short simple eglandular and glandular trichomes. Setae with glabrous tubercles are present in O. papillosa and O. rutila. O. auriculata has porrect-stellate trichomes. Simple trichomes are unicellular and generally short. They have lignified, ornamental or smooth walls.

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Published

2019-06-30

How to Cite

Akcin, O. E., & Binzet, R. (2019). Anatomy of three Onosma species from Turkey. Bangladesh Journal of Botany, 48(2), 329–337. https://doi.org/10.3329/bjb.v48i2.47677

Issue

Section

Articles