Burcu YILMAZ ÇITAK, Burcu GÖNEN, Hüseyin DURAL

A Survey of the Morphology, Anatomy, and Palynology of Endemic Bornmuellera kiyakii and B. glabrescens (Brassicaceae) From Turkey

In the present study, the morphological, anatomical, and palynological properties of 2Bornmuellera Hausskn. taxa, which are endemic to Turkey, were examined. B. kiyakii Aytac &Aksoy is known from the province of Konya, growing in serpentine areas, and B. glabrescens(Boiss. & Balansa) Cullen & T. R. Dudley is known from the province of Niğde. Throughmorphological analyses, the characteristics of the taxa were designated and the descriptions wereexpanded. The morphology of the stem, leaf, trichomes, and capsule are essential to separate theexamined taxa. The anatomical analyses showed that the taxa had similar anatomical root, stem,and leaf tissue layers; however, their rows, and mesophyll thickness were different between thetaxa. Anatomical traits, such as the presence of an endodermis in B. kiyakii, the pith region in thecross-sections of the stems, linear-shaped leaf in B. glabrescens, and triangular-shaped leaf in B.kiyakii have taxonomic importance. The pollen grains of the studied taxa were tricolpate, isopolar,and radial symmetrical, prolate-spheroidal, and had reticulate ornamentation. The fruit of B.kiyakii were characterized by globose, asymmetrical, and yellow-purplish-pink valves withrugose ornamentation, which clearly differed from that of B. glabrescens, which had ovoid,symmetrical, and light green-yellow valves. The seed traits clearly appeared to have taxonomicsignificance. The seeds of B. glabrescens were orbicular-shaped, yellowish-brown in colour, withreticulate ornamentation; however, the seeds of B. kiyakii were oblong–elliptic-shaped, and thetile was red-brown in colour.

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