Morphological, anatomical and cytological investigation on alpine Lamium cymbalariifolium endemic to Turkey
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Date
2012
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Abstract
In this study, some morphological characters, anatomical features and chromosome numbers of alpine Lamium cymbalariifolium Boiss. (Lamiaceae) endemic to Turkey are firstly described in detail. Lamium cymbalariifolium is an east mediterrenean element growing on north-facing limestone screes at an altitude of 2100-2280m in the Southwest Anatolia. The investigated species is closely allied to L. microphyllum and L. sandrasicum which are other alpine endemic species to Turkey. Taxonomically significant characters for L. cymbalariifolium are tried to be pointed out. Morphologically, the corolla tube length, the upper lip length, lobe length of the upper lip, the lower lip length and lobe length of the lower lip, the length of pistil, filament, anther and the seed dimensions of the species are firstly reported in the present study. Anatomically, spring and autumn woods of the root, which are forming annual rings are clearly distinguishable. Stem has a thin collenchymatous layer at the corners whereas does not bear any extraxilar sclerenchyma tissue. Leaf is bifacial. Prismatic crystals occur in leaf and generative organs. Pollen type is trizonocolpate and pollen shape is subprolate. Cross-section of seed is triangular. Glandular hairs are classified into two main types, peltate and capitate. Furthermore, capitate glandular hairs are separated into two types, as type I and type II. The chromosome number is determined as 2n=18. The results are presented with photographs, illustrations and tables.