Vincetoxicum anatolicum (Apocynaceae), a new species from eastern Turkey, is described and illustrated. Additionally, a revised key for Turkish Vincetoxicum is provided and the seed micromorphology and palynological properties of the new... more
Vincetoxicum anatolicum (Apocynaceae), a new species from eastern Turkey, is described and illustrated. Additionally, a revised key for Turkish Vincetoxicum is provided and the seed micromorphology and palynological properties of the new species is described for the first time. The new species is morphologically similar to V. fuscatum and V. parviflorum, but it can be distinguished by its 8–12 mm long peduncles, yellow to light brown corolla with crisped hairs on the inner surface, and ovate corona segments partly fused with intermediate teeth, as well as by palynological properties like obovate pollinia and rugulate exine sculpture. However, phylogenetic analyses showed that the new species, attributed to the ‘Vincetoxicum s.str. clade', is clustered in the same subclade as V. funebre, V. rehmannii and V. scandens rather than with the species morphologically most similar to it.
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The pollen morphology of 25 Tragopogon L. taxa (including four subspecies and four varieties) distributed in Turkey was studied under light and scanning electron microscopy. It was observed that pollen grains of the examined Tragopogon... more
The pollen morphology of 25 Tragopogon L. taxa (including four subspecies and four varieties) distributed in Turkey was studied under light and scanning electron microscopy. It was observed that pollen grains of the examined Tragopogon taxa are suboblate and oblate-spheroidal in shape, and 3-zonocolpororate with fifteen lacunae. The lenghts of the polar axes and equatorial axes range from 31.57 to 40.35 µm and 35.32 to 44.65 µm, respectively. Numerical analyses show that the length of equatorial axis and the pore length are the most valuable characters among nineteen palynological traits for separating the examined taxa. The general palynological characteristics of the examined taxa allow some taxonomical evaluations for the genus. However, the results of cluster and principal component analyses did not support the division of the genus at any subgeneric level; neither did the ligule colour, as reported in the literature.
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The pollen morphology of 45 taxa belonging to 15 sections of the genus Scorzonera distributed in Turkey were studied with light and electron microscopies. The pollen is generally 3-zonocolporate. Pollen grains are oblate-spheroidal with... more
The pollen morphology of 45 taxa belonging to 15 sections of the genus Scorzonera distributed in Turkey were studied with light and electron microscopies. The pollen is generally 3-zonocolporate. Pollen grains are oblate-spheroidal with the polar axes 23.2–59.2 µm and the equatorial axes 27–62.5 µm. The outline is more or less circular to slightly elliptic in equatorial view and triangular or obtuse-hexagonal in polar view; amb semiangular to intersemiangular. Sculpturing is echinolophate. The spines are commonly concave-conical with a broad basis, sides are straight or slightly convex with a subacute tapered apical portion. Numerical analysis showed that polar axes, equatorial axes and exine thickness are valuable variables for seperating the examined taxa.
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Research Interests: Botany, Plant Biology, Biology, Astragalus, Crab Biology and Taxonomy, and 3 moreFabaceae, Nordic, and calyx
In this study, the pollen morphology of 20 representatives of ten taxa of Vincetoxicum from Turkey was observed under a scanning electron microscope and light microscope. Observations showed that each flower contained five pollinaria,... more
In this study, the pollen morphology of 20 representatives of ten taxa of Vincetoxicum from Turkey was observed under a scanning electron microscope and light microscope. Observations showed that each flower contained five pollinaria, including a pair of pollinia and caudicles attached to a central corpusculum. In the investigated taxa, the shape of the pollinium varied from ovate, elliptical, and obovate, to clavate, pollen cell surfaces exhibited gemmate or rugulate ornamentation, and the shape of the corpuscula was ovate or oblong. Numerical analysis showed that the shape of pollinia and corpuscula, size and surface ornamentation of pollen cells, and size of corpuscula and caudicles are valuable traits in delimiting the examined taxa. A key to Turkish Vincetoxicum based on pollinarium morphology is presented.
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A further collection of Hieracium L. and Pilosella Hill (Compositae) from NE Anatolia is presented here. In addition to the 32 second records, 7 new records of the genus Hieracium (H. pseudosvaneticum Peter s.l., H. biebersteinii Litw. &... more
A further collection of Hieracium L. and Pilosella Hill (Compositae) from NE Anatolia is presented here. In addition to the 32 second records, 7 new records of the genus Hieracium (H. pseudosvaneticum Peter s.l., H. biebersteinii Litw. & Zahn, H. callichlorum Litw. & Zahn, H. camkorijense Zahn s.l.) and Pilosella (P. brachiata (Bertol. & DC.) F.W.Schultz & Sch. Bip, P. fennica (Norrl.) Norrl. em. Sojak, P. procera (Fr.) F.W.Schultz & Sch. Bip.) are established for Anatolia in this study.
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Research Interests: Botany, Biology, Herbarium, Türkiye, Asteraceae, and 4 moreBiyoloji, Phylogenetic Tree, Subspecies, and Taxon
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Phenetic traits of 39 populations belonging to 19 taxa of Scorzonera L. (Asteraceae) from north Anatolia were analyzed with the use of numerical methods. Principal component analysis (PCA) showed that pubescence and length of achenes,... more
Phenetic traits of 39 populations belonging to 19 taxa of Scorzonera L. (Asteraceae) from north Anatolia were analyzed with the use of numerical methods. Principal component analysis (PCA) showed that pubescence and length of achenes, the shape of outer phyllaries, and average length of flowering capitula, plant pubescence, root shape and state of the plant stem are the best variables to distinguish the examined taxa. In addition, it was also found that binary are more important than quantitative characters in discriminating the examined Scorzonera taxa. Numerical results based on 25 morphological characters were discussed and compared with traditional taxonomic treatments.
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Rhus chinensis var. chinensis (Anacardiaceae) is reported for the first time in this paper for the flora of Turkey. This woody naturalized species was collected from Kemalpasa (Artvin) and observed in Hazar (Rize) of NE Turkey, in a mixed... more
Rhus chinensis var. chinensis (Anacardiaceae) is reported for the first time in this paper for the flora of Turkey. This woody naturalized species was collected from Kemalpasa (Artvin) and observed in Hazar (Rize) of NE Turkey, in a mixed broadleaved forest and thickets amongst tea plantations. The naturalized population of Kemalpasa includes more than 250 individuals, mostly along the side slopes of forest roads. However, the population of Hazar among tea plantations includes fewer individuals. Comparison of the important morphological characters of Rhus chinensis var. chinensis and R. coriaria, native to Turkey, description, photographs of the natural habitat and herbarium samples of the new record are also presented in the article.
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Aim of the study: In the present paper, male or female catkins composed of several intersexes florets in four individuals (all in the same population) of Salix caprea are reported from Turkey for the first time. Study area: Roadsides at... more
Aim of the study: In the present paper, male or female catkins composed of several intersexes florets in four individuals (all in the same population) of Salix caprea are reported from Turkey for the first time. Study area: Roadsides at Köse Mountain in Gümüşhane (NE Anatolia) wherein Scots pine forest is dominant. Material and method: Plant materials were collected from the same population belong to goat willow during the excursion around Köse Mountain in 2017 and 2018. All materials consisting male, female and metamorfosans flowered shoots were first processed according to standard herbarium techniques. Main results: Metamorphosans or intersexes florets in Salix caprea were recorded for the first time from Turkey. Research highlights: In extremely rare cases, metamorphosans florets have been reported in several willow species distributed outside of Turkey. However, native goat willow individuals, in which these florets appear, were recorded here for the Turkish flora. Beside its p...
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We report chromosome counts for ten taxa of Vincetoxicum sensu stricto (s. str.) (Apocynaceae) from Turkey (of which two are endemic), including the first chromosome counts for V. canescens subsp. pedunculata, V. funebre, V. fuscatum... more
We report chromosome counts for ten taxa of Vincetoxicum sensu stricto (s. str.) (Apocynaceae) from Turkey (of which two are endemic), including the first chromosome counts for V. canescens subsp. pedunculata, V. funebre, V. fuscatum subsp. boissieri, V. parviflorum and V. tmoleum. Two taxa of V. fuscatum proved to be tetraploid (2n=44) and the remaining eight taxa diploid (2n=22). Molecular phylogenetic analyses based on nrDNA (ITS) and cpDNA (trnT-trnL) (including 31 newly generated sequences) confirm the position of the Turkish Vincetoxicum in the Vincetoxicum s. str. clade. Vincetoxicum fuscatum, V. parviflorum, V. speciosum, as well as the Turkish endemic V. fuscatum subsp. boissieri, were clearly resolved as species-level clades, whereas the delimitation of the rest of the Turkish taxa was less clear based on molecular data.
Research Interests: Botany, Biology, Turkey, Cytology, Molecular phylogeny, and 4 moreDDC, Apocynaceae, Ploidy, and Taxon
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Cichorieae Lam. & DC., Asteraceae familyasının oymaklarından biridir. Bu oymak tamamen dilsi çiçeklerden oluşan homogam başcık çiçekli ve lateksli üyeleriyle ile karakterize olur. Bu oymak ekonomik öneme sahip Lactuca L. (Marul),... more
Cichorieae Lam. & DC., Asteraceae familyasının oymaklarından biridir. Bu oymak tamamen dilsi çiçeklerden oluşan homogam başcık çiçekli ve lateksli üyeleriyle ile karakterize olur. Bu oymak ekonomik öneme sahip Lactuca L. (Marul), Scorzonera L. (Tekesakalı) ve Tragopogon L. (Yemlik) cinslerini içine alır. Bu oymağın üyeleri aynı zamanda halk ilacı olarak da kullanılır. Bayburt Soğanlı, Otlukbeli, Mescit ve Giresun Dağları arasında yer almaktadır. Fitocoğrafik olarak İran-Turan floristik bölgesinin ağaçsız step bölgesine dahildir ve Anadolu Çatalı‘nın kuzey ucunda yer almaktadır. Bu fitocoğrafik özelliklerinden dolayı Bayburt zengin bir bitki çeşitliliğine ev sahipliği yapmaktadır. Bu çalışmada Bayburt‘un bitki çeşitliliğine katkıda bulunulması amaçlanmıştır. Örnekler 2010-2017 dönemlerinde Cicerbita Wallr., Lactuca, Scorzonera, Tragopogon ve Prenanthes L. cinsleri üzerine olan farklı projeler kapsamında toplanmış ve Karadeniz Teknik Üniversitesi Biyoloji Bölümü Herbaryumu (KTUB) ile ...
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Anatomical features of four Pilosella Vaill. taxa (P. officinarum Vaill., P. piloselloides (Vill.) Sojak subsp. bauhini (Schult.) S. Bräut. & Greuter, P.× hypeurya (Peter) Sojak, P. densiflora (Tausch) Sojak) collected from Black Sea... more
Anatomical features of four Pilosella Vaill. taxa (P. officinarum Vaill., P. piloselloides (Vill.) Sojak subsp. bauhini (Schult.) S. Bräut. & Greuter, P.× hypeurya (Peter) Sojak, P. densiflora (Tausch) Sojak) collected from Black Sea Region of Turkey were investigated. Anatomical studies include transverse sections of root, stem and leaf with their illustrations. Although the anatomical properties are similar to the typical anatomy of dicotyledons, some differences were observed among them. While root anatomy of P. officinarum, P. piloselloides subsp. bauhini and P. densiflora consist of a single layer exodermis, there is 2-3 layer exodermis in the natural hybrid P. × hypeurya. Additionaly the root pith of this hybrid taxa completely composed of schlerenchyma cells in contrast to other investigated taxa. The stem anatomy of the investigated taxa is similar to each other except the number of the tracheidal elements. The numbers of the stomata per µm2 disticltly differ in P. pil...
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The anatomical peculiarities of Viburnum lantana, V. orientale and V. opulus collected from Trabzon (Turkey) are examined in the present study. As a result, it was observed that the cork structure, existence and distribution of fibers and... more
The anatomical peculiarities of Viburnum lantana, V. orientale and V. opulus collected from Trabzon (Turkey) are examined in the present study. As a result, it was observed that the cork structure, existence and distribution of fibers and sclereids in the shoot, the structure of assimilating parenchyma and the shape of epidermal cells in the leaves are important anatomical traits for distinguishing the examined taxa.
Research Interests: Botany, Biology, Cytogenetic, Asteraceae, Karyotype, and 5 moreChromosome, Biyoloji, Ploidy, Subgenus, and Taxon
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In this study, pollen grains and anatomical features of Turkish lilies were investigated under the electron (SEM) and light (LM) microscope. LM and SEM observations showed that the pollen grains are monosulcate, heteropolar, elliptical in... more
In this study, pollen grains and anatomical features of Turkish lilies were investigated under the electron (SEM) and light (LM) microscope. LM and SEM observations showed that the pollen grains are monosulcate, heteropolar, elliptical in polar view and oblate. Numerical results based on combined palynological and anatomical characters were discussed and compared with traditional taxonomic treatments. It was found that the midrib shape, mesophyll type, P/E (polar/equatorial), sulcus length, and lumina width are the most valuable traits in separating the examined taxa. The numerical analysis showed that Lilium candidum L. differs from the rest Turkish Lilium and also confirmed a close relationship between L. szovitsianum Fisch. & Avé-Lall. and L. armenum Miscz. ex Grossh. Also this study is the first report dealing with anatomical and palynological features of all Turkish lilies.
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The new species, Tragopogon anatolicus A.Duran, B.Doğan & Coşkunç. sp. nov. (Asteraceae) is described and illustrated from Cilo Mt. (Hakkari), south-east Anatolia, Turkey. Tragopogon anatolicus is a local endemic, most similar to T.... more
The new species, Tragopogon anatolicus A.Duran, B.Doğan & Coşkunç. sp. nov. (Asteraceae) is described and illustrated from Cilo Mt. (Hakkari), south-east Anatolia, Turkey. Tragopogon anatolicus is a local endemic, most similar to T. buphthalmoides (DC.) Boiss. Diagnostic morphological characters of these two closely related taxa are discussed. A phylogenetic analysis based on nrDNA ITS sequence data indicated that T. buphthalmoides is the sister species of the new taxon. Ecology, biogeography and conservation status of the new species are also presented.
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The endemic Anatolian willow, Salix anatolica (Salicaceae), was described based on solely female individuals in 2008. It was re-collected and the description was emended based on both male and female flower properties in the present... more
The endemic Anatolian willow, Salix anatolica (Salicaceae), was described based on solely female individuals in 2008. It was re-collected and the description was emended based on both male and female flower properties in the present study. Additionally, the pollen morphology, wood anatomical features and conservation status of S. anatolica are presented for the first time.
Research Interests: Botany, Biology, Anatolia, Pollen, Key words, and 4 moreNature Conservation, Salix, Willow, and Salicaceae
Summary: In this study, the contents of total phenolic substances, hexose and pentose, glucose and reducing sugar in leaves of four endemic species of Hieracium (H. hypopityforme, H. karogoellense, H. microtum and H. gen- tiliforme) were... more
Summary: In this study, the contents of total phenolic substances, hexose and pentose, glucose and reducing sugar in leaves of four endemic species of Hieracium (H. hypopityforme, H. karogoellense, H. microtum and H. gen- tiliforme) were analysed. The highest content of total phenols was quantified in the leaves of H. karogoellense (31.78 mg/g DW) while the highest contents of pentoses, hexoses and glucose were found in the leaves of H. microtum. Reducing sugar levels in the leaves of H. hypopifyforme, and H. gentiliforme were richer than those of H. karogoellense and H. microtum. The results showed that leaves of the Hieracium species were very rich in phenolic sub- stances and sugars.
Research Interests: Botany, Biology, Key words, Sugar, Asteraceae, and 4 moreEndemic species, Phenolics, Sugars, and Hieracium
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Bu çalışma ile Türkiye’de geniş bir yayılışa sahip Vincetoxicum tmoleum Boiss. taksonunun fotoğraf ve çizimler ile desteklenmiş morfolojik özellikleri yeniden incelenerek güncel veriler ışığında ülkemizdeki dağılımı ve tehdit... more
Bu çalışma ile Türkiye’de geniş bir yayılışa sahip Vincetoxicum tmoleum Boiss. taksonunun fotoğraf ve çizimler ile desteklenmiş morfolojik özellikleri yeniden incelenerek güncel veriler ışığında ülkemizdeki dağılımı ve tehdit değerlendirmeleri araştırılmıştır. Morfolojik çalışmalar, türün doğal yayılış gösterdiği alanlardan toplanmış ve Recep Tayyip Erdoğan Üniversitesi Biyoloji Bölümü Herbaryumunda (RUB) saklanan örnekler ile ulusal/uluslararası herbaryumlarda bulunan örnekler üzerinden gerçekleştrilmiştir. V. tmoleum dik ve kısa kıvrık tüylü (crisped) gövdesi, belirgin pedunkulu (10–45 mm), yeşilimsi-sarı renkli korollası, yoğun uzun kıvrık yünsü tüylü (lanate) petalleri, parçalı koronası, üçgenimsi korona segmentleri, lanseolat ve kısa kıvrık tüylü (crisped) meyvesi ile karakterize edilmektedir. Bu çalışma ile taksonun Türkiye’de yayılış gösterdiği ve doğrulanmış lokalite sayısı 89 olarak belirlenmiştir. Ayrıca, V. tmoleum taksonunun geniş yayılışlı olduğu, popülasyonlarının güçl...
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Tragopogon dshimilensis K. Koch is endemic to Turkey. This neglected species had been known from the original collection and was not included in the Flora of Turkey. Recently it was recollected from its type locality (A8 Rize: Cimil) and... more
Tragopogon dshimilensis K. Koch is endemic to Turkey. This neglected species had been known from the original collection and was not included in the Flora of Turkey. Recently it was recollected from its type locality (A8 Rize: Cimil) and several adjacent localities. Based on two authentic specimens deposited at P and B, as well as new collections from Eastern Anatolia, an emended description and typification of T. dshimilensis are presented here, and its conservation status is also indicated.