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Öğe Alchemilla boluensis (Rosaceae), a new species from the west Black Sea region (Bolu, Turkey)(Nordic Journal Of Botany, 2002) Menemen, Y.; Hamzaoglu, E.Alchemilla boluensis from the west Black Sea region of Turkey is described as a species new to science and illustrated. It belongs to the section Alchemilla, subsection Calycanthum and series Elatae, and is closely related to A. amoena, from which it mainly differs in its stem and leaf features.Öğe Alchemilla ovitensis (Rosaceae), a new species from the east Black Sea region, Turkey(Finnish Zoological Botanical Publishing Board, 2002) Menemen, Y.; Hamzaoğlu, E.Alchemilla ovitensis Y.Menemen & E.Hamzaoglu (Rosaceae) from the east Black Sea region (Turkey) is described as a species new to science and illustrated. Its geographic distribution is presented on a map and it is compared with five morphologically similar species.Öğe Astragalus hamzaoglui (Fabaceae), a new species from the east Black Sea region, Turkey(Finnish Zoological Botanical Publishing Board, 2003) Ketenoglu, O.; Menemen, Y.Astragalus hamzaoglui O. Ketenoglu & Y. Menemen (Fabaceae), a new species from Turkey is described and illustrated. It belongs to section Hypoglottoidei DC. and resembles A. viciifolius DC. and A. viridissimus Freyn & Sint., from which it differs in the habit, indumentum of stem and leaf, and floral features.Öğe Comparative fruit studies in a group of tribe Peucedaneae (Umbelliferae)(Laser Pages Publ Ltd, 2001) Menemen, Y.; Jury, S.L.Comparative fruit studies (macro- and micro-morphology and anatomy) have been undertaken in a group of tribe Peucedaneae (Umbelliferae) (Malabaila Hoffm., Pastinaca L., Heracleum L., Stenotaenia Boiss., Opopanax W.D.J. Koch, and Grafia Rchb.). A multivariate analysis was carried out using Simple Matching Coefficient and UPGMA (unweighted pair group method using arithmetic averages) and WPGMA (weighted pair group method using arithmetic averages) clustering methods. Two types of dorsal mericarp, surface and margin sufaces were detected: (1) reticulate with a smooth surface, (2) reticulate with a striate surface. On the dorsal surface of the mericarps, three hair shapes and four hair surface types were seen. These hairs are treated as having systematic significance. For instance, a very short triangular hair with a papillose surface is unique to Pastinaca. The shapes of the mericarp and mericarp apex at the base of stylopodium are significant features for generic delimitation. Malabaila is distinguished by its cordate-obovate mericarp with mericarp apex curved at stylopodium base. Anatomical features, such as the number of the vittae on the dorsal surface, the length of the mericarp wing neck and margin, are significant. The genera Stenotaenia and Opopanax are characterized by having many vittae on the dorsal and commissural. surfaces.Öğe Flavonoid patterns in Convolvulus L., (Convolvulaceae) species from Morocco(Pakistan Botanical Soc, 2002) Menemen, Y.; Williams, C.A.; Jury, S.L.This study was undertaken to document the distribution of chemical components and determine whether phytochemical characters support the delimitation of the taxa in the genus Convolvulus L., from Morocco. Twenty taxa from the genus were investigated for their flavonoid aglycone constituents. The flavonols quercetin, kaempferol and isorhamnetin, the flavone luteolin and the hydroxycoumarin cichoriin were identified. It was seen that the aglycone pattern is useful for the delimitation of some species in the genus and correlate with morphological features. The flavonoid glycosides identified from Convolvulus mazicum were isorhamnetin 3-glucoside, quercetin 3-glucoside and 3-galactoside and luteolin 5-glucoside.Öğe ITS DNA sequence utility for the relationship of Heracleum L. (umbelliferae) genus(Blackwell Publishing, 2006) Maras, M.; Aksöz, E.; Menemen, Y.; Hamzaoğlu, E.…Öğe Linaria dumanii (Scrophulariaceae), a new species from south Anatolia, Turkey(Finnish Zoological Botanical Publishing Board, 2002) Duran, A.; Menemen, Y.Linaria dumanii A. Duran & Y. Menemen sp. nova is described from the Akseki district in Turkey. It. belongs to the section Pelisserianae Valdes and is related to L. pelisseriana (L.) Miller, from which it mainly differs in its very small flowers.Öğe A new species of Silene (Caryophyllaceae) from South Anatolia, Turkey(Blackwell Publishing Ltd, 2003) Duran, A.; Menemen, Y.Silene doganii A.Duran & Y.Menemen sp. nov. from the Amanos Mountains (C6: Osmaniye-Turkey) is described and illustrated. It is closely related to S. caramanica Boiss. & Heldr., from which it differs mainly in its habit, hairiness, leaf and floral features. (C) 2003 The Linnean Society of London.Öğe A taxonomic revision of the genus Pastinaca L. (Umbelliferae)(Laser Pages Publ Ltd, 2001) Menemen, Y.; Jury, S.L.A taxonomic revision of the genus Pastinaca L. was carried out with respect to fruit macro- and micro-morphology, anatomy, palynology, and phytochemistry. The study covers the world distribution of the genus, confined to Europe and Asia, except for Pastinaca sativa L. subsp. sativa (parsnip) cultivated all over the world. Pollen studies showed that the pollen of the genus could be described as cerebroid. Three flavonoid compounds were detected in the: genus. Pastinaca is represented with eight species and four subspecies in the world. P. latifolia DC. is regarded as a subspecies of P. sativa.
