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A New Species From Türkiye, Centaurea Turhanii (Cardueae, Asteraceae), Tuna Uysal, Meryem Bozkurt, Ergi̇n Hamzaoğlu Jan 2024

A New Species From Türkiye, Centaurea Turhanii (Cardueae, Asteraceae), Tuna Uysal, Meryem Bozkurt, Ergi̇n Hamzaoğlu

Turkish Journal of Botany

In this article, a new cornflower, Centaurea turhanii Uysal & Hamzaoğlu (Asteraceae) from Türkiye was described and reported. Morphological, karyological, and molecular analyses were used to reveal the taxonomic status of the new species with the species thought to be related to taxa. A modified determination key was submitted and its ecology and phenology were given.


Histochemical And Surface Microstructural Analyses Of Floral Cuticles Provide Evidence For Differential Behaviors In Scent Volatiles Emission In Two Tuberoses (Agave Amica (Medik.) Theide And Govaerts) Cultivars From Asparagaceae, Raktim Bhattacharya, Adinpunya Mitra Jan 2023

Histochemical And Surface Microstructural Analyses Of Floral Cuticles Provide Evidence For Differential Behaviors In Scent Volatiles Emission In Two Tuberoses (Agave Amica (Medik.) Theide And Govaerts) Cultivars From Asparagaceae, Raktim Bhattacharya, Adinpunya Mitra

Turkish Journal of Botany

Two popular cultivars of tuberose (Agave amica (Medik.) Theide and Govaerts syn. Polianthes tuberosa L.) from the family Asparagaceae, widely cultivated for floricultural purposes are ,'Calcutta Single' (CS) and 'Calcutta Double' (CD). It was evidenced that CS flowers emit intense scent volatiles as compared to CD flowers, while CD flowers retained higher contents of internal pool of scent volatiles than CS flowers. Such contrasting observations between the flowers of two cultivars suggest the role of possible barriers such as cuticles that prevent the emission of scent volatiles. The cuticular structure of both cultivars was studied using different histochemical approaches, …


Seed Morphology Of Some Taxa Of The Genus Euphorbia L. (Euphorbiaceae) In Turkey And Its Taxonomic Significance, Murat Kurşat, Bi̇rol Başer, Fahretti̇n Özbey, İrfan Emre Jan 2023

Seed Morphology Of Some Taxa Of The Genus Euphorbia L. (Euphorbiaceae) In Turkey And Its Taxonomic Significance, Murat Kurşat, Bi̇rol Başer, Fahretti̇n Özbey, İrfan Emre

Turkish Journal of Botany

The morphological characteristics of seeds are not affected by environmental factors and can be used to identify the Euphorbia taxa. The present study aims to determine the morphological characteristics of seeds in 27 taxa of Euphorbia using scanning electron microscopy (SEM) and light microscope (LM). Findings revealed that the seeds of Euphorbia show variation in size, color, and seed surface ornamentations among different species. The seeds vary also in shape from ovoid, ellipsoidal, globose, quadrangular, compressed, to compressed-ellipsoidal with two exceptions in E. petiolata (oblong--quadrangular truncate), E. macrocarpa (subglobose), and E. szovitsii var. kharputensis(ellipsoidal quadrangular truncate). Furthermore, it was …


Pollen And Trichome Morphology Of Tribe Stachydeae (Lamiaceae) And Its Phylogenetic Significance, Leila Homami Totmaj, Yasaman Salmaki Jan 2022

Pollen And Trichome Morphology Of Tribe Stachydeae (Lamiaceae) And Its Phylogenetic Significance, Leila Homami Totmaj, Yasaman Salmaki

Turkish Journal of Botany

Tribe Stachydeae with 12 genera were divided into two major clades: Melitis and Eurystachys clades consisting of all genera attributed to Stachydeae except Melittis. Recently, a broadly defined Eurystachys clade falling into 12 well-supported clades have been formally named in a phylogenetic nomenclature. In the present study, trichomes of 70 spp. from nine genera and pollens of 53 spp. from six genera were investigated using scanning electron microscopy (SEM) in order to draw the taxonomic conclusion of tribe Stachydeae. Trichome characters that can provide adequate variation in delimitation of taxa were: presence or absence of glandular or nonglandular trichomes, number …


A New Achillea (Asteraceae) Species From Southwestern Turkey, Gürkan Semi̇z, Tuna Uysal, Meryem Bozkurt, Batikan Günal Jan 2022

A New Achillea (Asteraceae) Species From Southwestern Turkey, Gürkan Semi̇z, Tuna Uysal, Meryem Bozkurt, Batikan Günal

Turkish Journal of Botany

Achillea alimeana Semiz & Uysal sp. nov. of sect. Santolinoidea DC. (Asteraceae), was described, diagnosed and illustrated as a new species. It was collected from Akdağ Mountains in Denizli Province. In this paper, the diagnostic characters of A. alimeana and its similar species were discussed in the morphological, palynological and molecular findings. As regards the new species, some notes on the ecology, conservation status, and distribution were submitted. A diagnostic key was given for related taxa.


Seed Morphology And Testa Ultrastructure In Allium Stipitatum Complex (Amaryllidaceae; Allioideae) And Their Systematic Significance, Mina Khorasani, Shahryar Saeidi Mehrvarz, Shahin Zarre Jan 2020

Seed Morphology And Testa Ultrastructure In Allium Stipitatum Complex (Amaryllidaceae; Allioideae) And Their Systematic Significance, Mina Khorasani, Shahryar Saeidi Mehrvarz, Shahin Zarre

Turkish Journal of Botany

Characteristic features of seed and testa cells in 13 species of Allium, representing its five recognized sections, Compactoprason, Megaloprason, Procerallium, Decipientia and Pseudoprason were studied using both stereomicroscope and scanning electron microscope. The identified characters, such as seed shape, alignment and shape of testa cells, features of outer cell walls, verruca type, density of verrucae and granules, seed size as well as cell wall undulations were evaluated statistically. The our findings indicated the significance level of P ? 0.01 for examined characters using the Kruskal-Wallis and ANOVA analyses.Two principal components of factor analysis revealed the following traits to be most …


Labellum Micromorphology Of Some Orchid Genera (Orchidaceae) Distributed In The Black Sea Region In Turkey, Şenay Süngü Şeker, Mustafa Kemal Akbulut, Gülcan Şenel Jan 2016

Labellum Micromorphology Of Some Orchid Genera (Orchidaceae) Distributed In The Black Sea Region In Turkey, Şenay Süngü Şeker, Mustafa Kemal Akbulut, Gülcan Şenel

Turkish Journal of Botany

A detailed micromorphological analysis of the labellum was carried out using both light and scanning electron microscopy on 14 genera (Anacamptis, Cephalanthera, Coeloglossum, Dactylorhiza, Gymnadenia, Himantoglossum, Limodorum, Neottia, Orchis, Ophrys, Platanthera, Serapias, Spiranthes, and Steveniella) of Orchidaceae in Turkey. In the samples, various epidermal features were identified in the spur that developmentally are invaginations of the labellum and the adaxial surface of the labellum. Typical secretory cells and inclusions such as starch or calcium oxalate crystals of different sizes and shapes were found within the structure of individuals. In many genera, characteristically shaped secretory trichomes and papillae were concentrated at …


Alyssum Amasianum (Brassicaceae), A New Species From North Anatolia, Turkey, Osman Karabacak, Ahmet Duran, Mustafa Çeli̇k Jan 2016

Alyssum Amasianum (Brassicaceae), A New Species From North Anatolia, Turkey, Osman Karabacak, Ahmet Duran, Mustafa Çeli̇k

Turkish Journal of Botany

Herein a new species, Alyssum amasianum, is described and illustrated from North Anatolia. The new species is very similar to A. hirsutum subsp. caespitosum but differs in the shape and indumentum of leaves, trichome type of the fruits, and margin of the seeds. The ecology, biogeography, and conservation status of the new species are discussed. The leaf, fruit, and seed surface micromorphology of A. amasianum, A. hirsutum subsp. caespitosum, A. hirsutum subsp. hirsutum, A. strigosum subsp. strigosum, and A. xanthocarpum were also examined by scanning electron microscope.


Seed Micromorphology In Dactylorhiza Necker Ex Nevski (Orchidaceae) And Allied Genera, Roberto Gamarra, Pablo Galan, Henrik Aerenlund Pedersen, Emma Ortunez, Ernesto Sanz Jan 2015

Seed Micromorphology In Dactylorhiza Necker Ex Nevski (Orchidaceae) And Allied Genera, Roberto Gamarra, Pablo Galan, Henrik Aerenlund Pedersen, Emma Ortunez, Ernesto Sanz

Turkish Journal of Botany

Seeds of 21 taxa of the genera Dactylorhiza (incl. Coeloglossum), Gymnadenia (incl. Nigritella) and Pseudorchis were examined by light microscope and SEM. Qualitative and quantitative characters were analyzed. In Dactylorhiza, the seeds are fusiform, but some populations of D. viridis show clavate seeds. According to the ornamentation of the periclinal walls, 3 types of seeds are recognized in this genus. The considerable variation in the seed coat ornamentation pattern in the taxa belonging to majalis, maculata, and praetermissa groups of the genus Dactylorhiza is congruent with the genetic processes that occurred during the history of this genus. Gymnadenia shows clavate …


Seed Morphology And Surface Microstructure Of Some Euphorbia (Euphorbiaceae) Taxa Distributed In Turkey-In-Europe, Levent Can, Orhan Küçüker Jan 2015

Seed Morphology And Surface Microstructure Of Some Euphorbia (Euphorbiaceae) Taxa Distributed In Turkey-In-Europe, Levent Can, Orhan Küçüker

Turkish Journal of Botany

The taxa of the genus Euphorbia L. Have seeds that mature in schizocarp fruits, called cocci, with three or more cells, each of which explosively splits open into separate parts at maturity. The Euphorbia seeds have taxonomically useful characters. We studied 13 taxa of the genus Euphorbia distributed in Turkey-in-Europe, with a focus on the seed characters; for morphological observations we used a stereomicroscope, and for surface microstructure we used a scanning electron microscope (SEM). The morphological observations showed that the seed characters of shape, size, color, surface features, and the features of the caruncle are uniquely different. SEM observations …


Seed-Coat Microsculpturing Of Turkish Lepidium (Brassicaceae) And Its Systematic Application, Mehmet Bona Jan 2013

Seed-Coat Microsculpturing Of Turkish Lepidium (Brassicaceae) And Its Systematic Application, Mehmet Bona

Turkish Journal of Botany

This article investigates the seed exomorphic characteristics of 14 taxa of Lepidium L. in Brassicaceae by light microscope and scanning electron microscope (SEM). The exomorphic characteristics of the seed are size, seed shape, seed colour, seed wings, and seed surface pattern. All characteristics of the seeds are described, illustrated, and compared in this article. The results of SEM at higher magnification showed 6 types of seed surface patterns: tuberculate, reticulate, ruminate, reticulate-tuberculate, reticulate-areolate, and reticulate-fovate. In these seed surface patterns, there were diagnostic characteristics and differences at the specific level for Lepidium.


Leaf Epidermis Morphology Of Some Onosma (Boraginaceae) Species From Turkey, Öznur Ergen Akçi̇n, Gülcan Şenel, Yaşar Akçi̇n Jan 2013

Leaf Epidermis Morphology Of Some Onosma (Boraginaceae) Species From Turkey, Öznur Ergen Akçi̇n, Gülcan Şenel, Yaşar Akçi̇n

Turkish Journal of Botany

The leaf epidermis of 14 Onosma L. species was examined by light and scanning electron microscopy (SEM). The leaf characters studied showed some variations. Morphologic features of the epidermal cells such as shape, structure of the anticlinal walls, stomatal size, outer stomatal rims, peristomatal rims, and apertures were summarised in the examined taxa. It was found that these characters are variable in the genus but usually they are stable within a species. Epidermal cells of the investigated taxa are polygonal, elongated, or irregular. Anticlinal walls of the epidermal cells are generally straight to curved and repand. Apertures are long, ellipsoidal, …


Leaf And Anatomical Traits In Relation To Physiological Characteristics In Mulberry (Morus Sp.) Cultivars, Vineet Kumar, Javuli Kodandaramaiah, Mala Vati Rajan Jan 2012

Leaf And Anatomical Traits In Relation To Physiological Characteristics In Mulberry (Morus Sp.) Cultivars, Vineet Kumar, Javuli Kodandaramaiah, Mala Vati Rajan

Turkish Journal of Botany

Micromorphological and anatomical traits in relation to physiological characteristics were studied in the leaves of 4 mulberry (Morus sp.) cultivars (V_1, TR_{10}, S_{34}, and Mysore local) by scanning electron microscope. The results revealed that leaf thickness was lowest (124.42 ± 2.21 µm) in the TR_{10} genotype and highest in V_1 (263.77 ± 5.17 µm). Cultivar S_{34} ranked second in respect to leaf thickness (203.57 ± 1.98 µm), followed by Mysore local (127.94 ± 2.19 µm). The thickness of palisade parenchyma was 143.66 ± 2.42 µm in V_1, 64.95 ± 1.60 µm in TR_{10}, 83.92 ± 1.43 µm in S_{34}, and …


Micromorphological Studies On Nutlet And Leaf Indumentum Of Genus Teucrium L. (Lamiaceae) In Iran, Maryam Eshratifar, Farideh Attar, Kazem Mahdigholi Jan 2011

Micromorphological Studies On Nutlet And Leaf Indumentum Of Genus Teucrium L. (Lamiaceae) In Iran, Maryam Eshratifar, Farideh Attar, Kazem Mahdigholi

Turkish Journal of Botany

The micromorphology of leaf indumentum and nutlet surface of 12 species belonging to the 6 sections of the genus Teucrium L. was studied by scanning electron microscope (SEM). Eight types of trichomes are identified including unbranched unicellular trichomes, unbranched multicellular trichomes, sessile glands, subsessile glands, stalked-multicellular glands long clavate glandular trichomes (with 3-5 cells), trichomes with large thin-wall, trichomes with non-micropapillate basal cell, which are the most general types on the adaxial side of the leaves, and branched trichome with long axis is the exclusive type and present in Teucrium polium L. Thus, trichomes can be used as a distinctive …


Pollen Morphology Of The Genus Seseli L. (Umbelliferae) In Turkey, Ebru Doğan Güner, Hayri̇ Duman, Nur Münevver Pinar Jan 2011

Pollen Morphology Of The Genus Seseli L. (Umbelliferae) In Turkey, Ebru Doğan Güner, Hayri̇ Duman, Nur Münevver Pinar

Turkish Journal of Botany

Morphological features of pollen of 11 Turkish taxa belonging to the complex genus Seseli L. were examined using light and scanning electron microscopy. On the basis of exine sculpturing, 3 main types were recognised in Seseli: Type 1, rugulate at equator, psilate-perforate at pole; Type 2, striate-reticulate at equator, rugulate at pole; and Type 3, rugulate at equator, striate at pole. The study revealed that palynological characters display taxonomic significance in the genus.


Verbascum Ergin-Hamzaoglui (Scrophulariaceae), A New Species From South Anatolia, Turkey, Fai̇k Ahmet Karaveli̇oğullari, Sezgi̇n Çeli̇k, Bi̇rol Başer, Ahter Fi̇şne Jan 2011

Verbascum Ergin-Hamzaoglui (Scrophulariaceae), A New Species From South Anatolia, Turkey, Fai̇k Ahmet Karaveli̇oğullari, Sezgi̇n Çeli̇k, Bi̇rol Başer, Ahter Fi̇şne

Turkish Journal of Botany

Verbascum ergin-hamzaoglui Karavel. sp. nova (Sect. Bothrosperma Murb.), is described for the first time to the scientific community from South Anatolia in Turkey. The diagnostic morphological characters of these new species and other closely related species (V. diversifolium Hochst. and V. cymigerum Hub.-Mor.) are discussed. In addition, distribution maps of V. ergin-hamzaoglui and its related species are provided. The pollen morphologies of 3 taxa belonging to Verbascum L. from the family Scrophulariaceae from Turkey were investigated using a light microscope (LM) and scanning electron microscope (SEM). This family's pollens show similarities to the eurypalynous family. The pollens of these taxa …


Pollen Morphology Of Sections Siphonomorpha And Lasiostemones Of The Genus Silene From Turkey, Kemal Yildiz, Mehmet Yaşar Dadandi, Ersi̇n Mi̇nareci̇, Ali̇ Hi̇kmet Çirpici Jan 2011

Pollen Morphology Of Sections Siphonomorpha And Lasiostemones Of The Genus Silene From Turkey, Kemal Yildiz, Mehmet Yaşar Dadandi, Ersi̇n Mi̇nareci̇, Ali̇ Hi̇kmet Çirpici

Turkish Journal of Botany

The pollen morphology of 16 taxa belonging to the sections Siphonomorpha Otth and Lasiostemones Boiss. from the genus Silene L. (Caryophyllaceae) was examined via scanning electron microscopy (SEM). Pollen types among all of the examined taxa were spheroidal; ornamentations were generally microechinate-microperforate (punctate), but perforate in Silene viridiflora L.; structures were mostly tectate but were observed to be semitectate only in S. viridiflora; the highest pore numbers were found in S. fruticosa L. and S. viridiflora; the lowest pore numbers were those of S. gigantea L. subsp. rhodopea (Janka) Greuter and S. marschallii C.A.Mey.; and interpore distance was greatest in …


Seed Morphology And Anatomy Of The Mediterranean Pentamerous Species Of Erica (Ericaceae), Jaime Fagundez, Jesus Izco Jan 2011

Seed Morphology And Anatomy Of The Mediterranean Pentamerous Species Of Erica (Ericaceae), Jaime Fagundez, Jesus Izco

Turkish Journal of Botany

The species of the "Pentapera group" are distinguished from the rest of the European and Mediterranean Erica L. species by having 5 corolla lobes and sepals instead of 4, and 10 stamens instead of 8. The genus Pentapera Klotzsch was proposed for these taxa but recent studies regards it as part of Erica. Two species are recognised: Erica sicula Guss. and E. bocquetii (Peşmen) P.F.Stevens, and 3 subspecies have been described within E. sicula. This taxonomic treatment is still under discussion and relationships with other species have been poorly discussed. Seed morphology of the 2 species and the 3 subspecies …


Fruit And Seed Morphology Of Six Species Previously Placed In Malcolmia (Brassicaceae) In Turkey And Their Taxonomic Value, Ayla Kaya, Murat Ünal, Fevzi̇ Özgökçe, Beki̇r Doğan, Esra Marti̇n Jan 2011

Fruit And Seed Morphology Of Six Species Previously Placed In Malcolmia (Brassicaceae) In Turkey And Their Taxonomic Value, Ayla Kaya, Murat Ünal, Fevzi̇ Özgökçe, Beki̇r Doğan, Esra Marti̇n

Turkish Journal of Botany

The fruit and seed morphologies of 6 species previously placed in the genus Malcolmia W.T.Aiton were examined with stereomicroscopy and scanning electron microscopy (SEM) in order to determine the significance of fruit and seed features as taxonomic characters. This study presents macro- and micromorphological characters, including fruit and seed shape, size, colour, fruiting pedicel size, fruit hair and density, seed coat pattern, epidermal cell shape, and anticlinal and periclinal cell walls. The results showed that the morphological characteristics of the fruit and seed could be used as criteria to distinguish genera and tribes. The investigated features of specimens indicated that …


Pollen Morphology Of Six Achillea L. Sect. Achillea (Asteraceae) Species In Turkey, Hani̇fe Akyalçin, Turan Arabaci, Bayram Yildiz Jan 2011

Pollen Morphology Of Six Achillea L. Sect. Achillea (Asteraceae) Species In Turkey, Hani̇fe Akyalçin, Turan Arabaci, Bayram Yildiz

Turkish Journal of Botany

The pollen morphology of 48 specimens of 6 species (9 taxa) of the genus Achillea L. sect. Achillea (Asteraceae), A. nobilis L. subsp. neilreichii (A.Kern.) Formánek, A. nobilis subsp. densissima (O.Schwarz ex Bässler) Hub.-Mor., A. nobilis subsp. sipylea (O.Schwarz) Bässler, A. nobilis subsp. kurdica Hub.-Mor., A. filipendulina Lam., A. clypeolata Sm., A. coarctata Poir., A. biebersteinii Afan., and A. cappadocica Hausskn. & Bornm. distributed in Turkey were investigated using light (LM) and scanning electron microscopy (SEM). The pollen grains were oblate-spheroidal, prolate-spheroidal, subprolate and generally tricolporate, though at times tetracolporate or even pentacolporate. The size of the grains varied, ranging …


New Morphological Characters For Some Erysimum (Brassicaceae) Species, Bi̇rol Mutlu Jan 2010

New Morphological Characters For Some Erysimum (Brassicaceae) Species, Bi̇rol Mutlu

Turkish Journal of Botany

Trichome shapes were investigated on the outer and inner surfaces of fruit valves of 43 species of Erysimum L., 20 of which are endemic to Turkey, by light microscopy (LM) and scanning electron microscopy (SEM). Five species, Erysimum sorgerae Polatschek., E. huber-morathii Polatschek, E. cheiri (L.) Crantz, E. repandum L. and E. vuralii Yild. were identified, in which there are trichomes on the inner surface of fruit valves, which was determined for the first time in these species. Two morphological distinct types of trichomes were observed on the inner surfaces of the fruit valves of E. huber-morathii and E. repandum, …


Palynological Observations On The Genus Scorzonera L. (Asteraceae) From North-East Anatolia (Turkey), Zafer Türkmen, Serdar Makbul, Kami̇l Çoşkunçelebi̇, Osman Beyazoğlu Jan 2010

Palynological Observations On The Genus Scorzonera L. (Asteraceae) From North-East Anatolia (Turkey), Zafer Türkmen, Serdar Makbul, Kami̇l Çoşkunçelebi̇, Osman Beyazoğlu

Turkish Journal of Botany

Pollen morphology of the 13 taxa of Scorzonera L. (Asteraceae) from Turkey was investigated by using light (LM) and scanning electron microscopy (SEM). As a result of LM and SEM observations, it was found that the pollen types are generally isopolar, radially symmetric, triangular in polar view, and lophate, with lophae ornamentations that are echinate-perforate and an exine thickness ranging from 6.99 to 11.82 µm. The present study found that the lacunae ornamentation of S. laciniata subsp. laciniata and S. tomentosa is perforate-microrugulate, that of S. suberosa and S. cinerea is perforate-microreticulate, that of S. pseudolanata is perforate-psilate, and that …


Pollen Morphology Of The Genus Fritillaria L. (Liliaceae) In Turkey, Mehtap Tekşen, Zeki̇ Aytaç, Nur Münevver Pinar Jan 2010

Pollen Morphology Of The Genus Fritillaria L. (Liliaceae) In Turkey, Mehtap Tekşen, Zeki̇ Aytaç, Nur Münevver Pinar

Turkish Journal of Botany

Pollen grains of 39 taxa of the genus Fritillaria L. in Turkey were examined by light and scanning electron microscopy. Detailed pollen morphological characteristics are given for these taxa. Our investigation shows that the sculpturing of the exine provides valuable characters for separating species. In particular, sculpturing of the exine at the proximal face turned out to be taxonomically important. Six types of ornamentation were determined: reticulate, reticulate-perforate, suprareticulate, rugulate-reticulate, psilate-perforate, and perforate. On the basis of exine sculpturing, the sulcus membrane, and the apex sulcus, 5 main pollen types are recognised.


Pollen Morphology Of Some Gypsophila L. (Caryophyllaceae) Species And Its Taxonomic Value, Ebru Ataşlar, İsmühan Potoğlu Erkara, Süleyman Tokur Jan 2009

Pollen Morphology Of Some Gypsophila L. (Caryophyllaceae) Species And Its Taxonomic Value, Ebru Ataşlar, İsmühan Potoğlu Erkara, Süleyman Tokur

Turkish Journal of Botany

Pollen morphology of 12 taxa (6 of them endemic) that belong to the genus Gypsophila L. were investigated using light microscopy (LM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Differences in pollen morphology between these taxa were determined based on palynological studies. Pollen grains are spheroidal and polyporate. The exine structure is tectate, but that of G. sphaerocephala var. sphaerocephala is intectate. The exine sculpture is granulate-microechinate-microperforate, but that of G. sphaerocephala var. sphaerocephala displays clavate-microechinate ornamentation. The operculum exists in the form of scattered pieces in G. curvifolia, while it exists as a whole in the other …


Nutlet Surface Micromorphology Of The Genus Nepeta L. (Lamiaceae) In Turkey, Ayla Kaya, Tuncay Di̇rmenci̇ Jan 2008

Nutlet Surface Micromorphology Of The Genus Nepeta L. (Lamiaceae) In Turkey, Ayla Kaya, Tuncay Di̇rmenci̇

Turkish Journal of Botany

Nutlet characters within the genus Nepeta L. are of taxonomic significance. In this study, the nutlet morphology of 39 taxa of Turkish Nepeta species was examined using both stereoscopic and scanning electron microscopy (SEM). According to surface ornamentations, 3 main types, smooth, partly smooth, and sculptured, and 7 subtypes, undulate-ridged, cellular, reticulate, protuberance, papillate, verrucate, and tuberculate, were defined and illustrated. In addition, the unknown nutlet features of N. conferta Hedge & Lamond, N. crinita Montbret & Aucher ex Bentham, and N. viscida Boiss. are given for the first time here in detail. It is clear that external nutlet characters, …


On The Taxonomy Of Plantaginaceae Juss. Sensu Lato: Evidence From Sem Of The Seed Coat, Azza Ahmed Shehata, Mohamed Hesham A. Loutfy Jan 2006

On The Taxonomy Of Plantaginaceae Juss. Sensu Lato: Evidence From Sem Of The Seed Coat, Azza Ahmed Shehata, Mohamed Hesham A. Loutfy

Turkish Journal of Botany

SEM of the seed coat was studied in 41 taxa of the Plantaginaceae sensu lato. The study included 31 taxa of Plantago L. and 10 taxa that were formerly assigned to the Scrophulariaceae, representing the genera Antirrhinum L., Digitalis L., Linaria Mill. and Veronica L. The obtained data were analysed by the NT sys-PC program package using the UPGMA clustering method. The study showed that Veronica possessed certain affinities to Plantago species, thus giving extra support to earlier views that Plantaginaceae sensu stricto and Scrophulariaceae sensu lato are allied through Veronica. The study also favoured the paraphyly of Plantago subgenus …


Seed Morphology And Seed Coat Sculpturing Of Epilobium L. Species (Onagraceae Juss.) From Iran, Reza Sheikh Akbari, Dina Azizian Jan 2006

Seed Morphology And Seed Coat Sculpturing Of Epilobium L. Species (Onagraceae Juss.) From Iran, Reza Sheikh Akbari, Dina Azizian

Turkish Journal of Botany

The seeds of 32 specimens belonging to 15 species from 2 sections of the genus Epilobium L. (Onagraceae Juss.) were studied by both a light and scanning electron microscope (SEM). Seed morphology of the examined specimens exhibits some variation in shape and size. Seed size ranges between 0.97 mm and 2.2 mm in length. They are ovate, oblong-ovate, and narrowly ovate (ovate-attenuate). The results of SEM investigation of seed coat sculpturing also revealed 5 distinct types of surface structure of the seeds, which are mainly correlated to external morphology of the species.


Morphological And Anatomical Investigations On The Saponaria Kotschyi Boiss. (Caryophyllaceae), Ebru Ataşlar Jan 2004

Morphological And Anatomical Investigations On The Saponaria Kotschyi Boiss. (Caryophyllaceae), Ebru Ataşlar

Turkish Journal of Botany

The morphological, anatomical and micromorphological features of Saponaria kotschyi Boiss. have been studied on plants collected from Osmangazi University-Meşelik Campus, Eskişehir. S. kotschyi is an endemic species and a new record from Eskişehir. In general, the results obtained from morphological studies were consistent with the description given in the Flora of Turkey, except for the calyx, as the calyx of S. kotschyi flowers not only had glandular hairs but also eglandular hairs. The anatomical studies on cross-sections of the root, stem, leaves and surface sections of leaves were presented and compared with previous findings. Furthermore, the micromorphological properties of the …