Comparative Anatomical, Palynological and Fruit Micromorphological Studies on the Endemic Species Prangos abieticola and Prangos heyniae (Apiaceae)

İngilizce (OpenAlex)

In this study, the comparative anatomical, palynological, and fruit micromorphological characteristics of the endemic Türkiye species Prangos abieticola and P. heyniae were investigated. Anatomical analyses were carried out on transverse sections of the stem, peduncle, pedicel, ray, and fruit, and the structural features were evaluated in detail and presented in tables. Palynological investigations were conducted using light microscopy and scanning electron microscopy (SEM). Measurements of the polar and equatorial axes, colpus width and length, pore width and length, as well as exine and intine thicknesses were taken, and P/E ratios were calculated. The pollen grains of both species were perprolate in shape, with a trizonocolporate aperture type, and exhibited rugulate surface ornamentation. Fruit micromorphological features were examined using SEM, revealing distinct surface ornamentation patterns between the two species. The results indicate that palynological characters provide limited taxonomic resolution, whereas anatomical and especially fruit micromorphological characters offer reliable and diagnostic features for distinguishing P. abieticola and P. heyniae.