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Articles 61 - 64 of 64
Full-Text Articles in Life Sciences
A Taxonomic Study Of The Silene Sections Behenantha And Dichotomae (Caryophyllaceae) In Turkey Based On The Micromorphology Of Their Seed And Pollen, Mehmet Kuh, Kemal Yildiz, Ersi̇n Mi̇nareci̇
A Taxonomic Study Of The Silene Sections Behenantha And Dichotomae (Caryophyllaceae) In Turkey Based On The Micromorphology Of Their Seed And Pollen, Mehmet Kuh, Kemal Yildiz, Ersi̇n Mi̇nareci̇
Turkish Journal of Botany
The seed and pollen grain micromorphologies of 10 taxa of the Silene sections Behenantha and Dichotomae (Caryophyllaceae) were analyzed in this study. Although the seeds of the analyzed taxa were generally reniform, S. tenuiflora and S. koycegizensis from the section Behenantha were clearly distinct from other taxa, while subspecies of S. dichotoma and S. euxina in the section Dichotomae showed differences. Pollen grains are periporate and spheroidal and ornamentation is generally spinulate-microperforate in all taxa. However, ornamentation is spinulate in S. euxina and semireticulate in S. koycegizensis. While the exine structure is generally tectate, it is semitectate in S. koycegizensis. …
Peucedanum Guvenianum (Apiaceae), A New Species From West Anatolia, Turkey, Hasan Yildirim, Hayri̇ Duman
Peucedanum Guvenianum (Apiaceae), A New Species From West Anatolia, Turkey, Hasan Yildirim, Hayri̇ Duman
Turkish Journal of Botany
Peucedanum guvenianum Yıldırım & H.Duman is described as a species new to science. It is endemic to the West Anatolia region of Turkey. It is known from a single locality in İzmir Province. P. guvenianum shows similarities to P. longifolium, P. ruthenicum, and P. vourinense. Diagnostic morphological characters are discussed and compared with those of closely related taxa. It is easily distinguished from related species especially by its stem 130-220 cm tall, distinctly striate, densely branched from below the middle to upper part; basal leaves 28-40 cm long and 20-70 cm wide; bracts linear-lanceolate and erect; petals emarginate at apex; …
Taxonomic Position Of Abies Equi-Trojani On The Basis Of Needlecharacters By Comparison With Different Fir Species, Anna Katarzyna Jasinska, Katarzyna Sekiewicz, Tolga Ok, Angel Romo, Adam Boratynski, Krystyna Boratynska
Taxonomic Position Of Abies Equi-Trojani On The Basis Of Needlecharacters By Comparison With Different Fir Species, Anna Katarzyna Jasinska, Katarzyna Sekiewicz, Tolga Ok, Angel Romo, Adam Boratynski, Krystyna Boratynska
Turkish Journal of Botany
The needles from 25 trees of Abies equi-trojani from Kazdağı (Mount Ida) were compared with those from four populations of A. alba, two of A. cephalonica, and three of each of A. xborisii-regis, A. bornmuelleriana, and A. nordmanniana, each represented by 29-31 individuals. Thirty-nine morphological and anatomical needle characters (26 main and 13 estimated ones) were examined biometrically to verify the systematic position of A. equi-trojani. To evaluate the relationships among taxa, Student's t-test for independent samples, the Mann-Whitney U test, and discrimination and clustering analyses were applied. The differences between taxa were statistically significant for several characters, but the …
Scilla Bilgineri (Asparagaceae: Scilloideae): A New Species Ofscilla L. From Eastern Turkey, Hasan Yildirim, Yusuf Altioğlu
Scilla Bilgineri (Asparagaceae: Scilloideae): A New Species Ofscilla L. From Eastern Turkey, Hasan Yildirim, Yusuf Altioğlu
Turkish Journal of Botany
Scilla bilgineri Yıldırım (Asparagaceae) is described here as a new species. Diagnostic morphological characters, a full description, and detailed illustrations are provided on the basis of the type specimens and observations of wild populations. The new species is characterized by whitish to very pale lilac tepals, variegated ovary; style 5-6 mm long; oblong, straw to pale yellow and cucullate seed; pale creamy-white elaiosome, which is adherent to the testa; and pinkish to reddish, fleshy bulb scales. It belongs to Scilla bifolia agg. and is related to S. bifolia and S. albinerve within. It is easily distinguished from all other species …