Raycheva & Stoyanov 2013. Comparative anatomical study of five species of Asparagus

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Raycheva T. & Stoyanov K. 2013.
Comparative anatomical study of five species of genus Asparagus in Bulgaria.
Trakia Journal of Sciences, 2: 104-109.

Abstract
The current study represents investigation on morphological and anatomical characters of five native species of genus Asparagaceae – Asparagus tenuifolius, A. acutifolius, A. maritimus, A. verticillatus and A. officinalis. Anatomical sections were prepared of phylloclades and stems of the taxa to evaluatethe importance of anatomical parameters as a tool for the taxonomy. The anatomical sections of the phylloclades are species-specific and can be effectively used in taxonomy of the members of Asparagaceae. The number of palisade parenchyma cells and the number of vascular bundles are conservative and constant as indicators of species level, and make them reliable and convenient for taxonomic purposes. The structure of the stems in the studied Bulgarian species corresponds to their ecological specialization, but missed histological, discrete quantitative and qualitative differences are therefore a low informative for taxonomy of the genus Asparagus. The evaluated anatomical characters are used to build a determination key.

Key words: anatomy, phylloclade, stem, determination key, taxonomy.


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