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Articles 181 - 210 of 263

Full-Text Articles in Botany

A New Centaurea L. (Asteraceae) Species From Turkey, Tuna Uysal, Yavuz Bülent Köse Jan 2009

A New Centaurea L. (Asteraceae) Species From Turkey, Tuna Uysal, Yavuz Bülent Köse

Turkish Journal of Botany

A new Centaurea L. (Asteraceae) species from Turkey is described and illustrated. Centaurea dursunbeyensis Uysal & Köse exists on limestone crevices in ancient Dursunbey Forest (Balikesir) in western Anatolia. It belongs to C. sect. Phalolepis (Cass.) DC., and taxonomically its closest relatives are C. aphrodisea Boiss. and C. cadmea Boiss. Diagnostic morphological characters from very similar taxa are provided, and a key is provided that includes related species of sect. Phalolepis from Turkey. The geographical distribution of the new species and species of other related taxa of the same section are mapped. The chromosome number of C. dursunbeyensis, 2n = …


Taxonomical And Chorological Notes On The Turkish Endemic Scorzonera Amasiana Hausskn. & Bornm. (Asteraceae), Muhi̇tti̇n Di̇nç, Yavuz Bağci Jan 2009

Taxonomical And Chorological Notes On The Turkish Endemic Scorzonera Amasiana Hausskn. & Bornm. (Asteraceae), Muhi̇tti̇n Di̇nç, Yavuz Bağci

Turkish Journal of Botany

Scorzonera amasiana Hausskn. & Bornm. is a stenoendemic species known from a few localities in Amasya Province. After the rediscovery of S. amasiana, it has been recorded from a new locality in Amasya. Using chorological and ecological data, morphological study of the collected specimens suggest that the recently described Scorzonera ekimii A.Duran is synonymous with S. amasiana. The conservation status of S. amasiana is also reviewed, based on the present distribution data.


A New Taxon Of Senecio (Asteraceae) From Turkey:Senecio Inops Boiss. & Balansa Subsp. Karamanicus Hamzaoğlu & Budak, Ergi̇n Hamzaoğlu, Ümi̇t Budak, Ahmet Aksoy Jan 2009

A New Taxon Of Senecio (Asteraceae) From Turkey:Senecio Inops Boiss. & Balansa Subsp. Karamanicus Hamzaoğlu & Budak, Ergi̇n Hamzaoğlu, Ümi̇t Budak, Ahmet Aksoy

Turkish Journal of Botany

Senecio inops Boiss. & Balansa subsp. karamanicus Hamzaoğlu & Budak (Asteraceae, Senecioneae) is described as a new subspecies from Karaman Province (Inner/South Anatolia). A Latin diagnosis, a taxonomic description, an illustration of the new subspecies, geographical distribution, and some comments on its affinity with Senecio inops Boiss. & Balansa subsp. inops are given.


Macrofungi Of Huzurlu High Plateau (Gaziantep-Turkey), Abdullah Kaya Jan 2009

Macrofungi Of Huzurlu High Plateau (Gaziantep-Turkey), Abdullah Kaya

Turkish Journal of Botany

Macrofungi samples were collected from Huzurlu high plateau and its surroundings between 2002 and 2005. As a result of macroscopic and microscopic investigations 105 taxa belonging to 67 genera and 33 families were recorded in Ascomycetes and Basidiomycetes classes. Six of them, Phaeohelotium umbilicatum (Le Gal) Dennis, Lepiota jacobi Vellinga & Knudsen, Leucoagaricus erioderma (Malençon) Bon, Leucoagaricus serenus (Fr.) Bon & Boiffard, Cortinarius turgidus Fr., and Cotylidia diaphana (Schwein.) Lentz, are new records for the macromycota of Turkey.


Macrofungi Of Karcı Mountain (Denizli, Turkey), Kudret Gezer, Fatma Taşkin Eki̇ci̇, Azi̇z Türkoğlu Jan 2008

Macrofungi Of Karcı Mountain (Denizli, Turkey), Kudret Gezer, Fatma Taşkin Eki̇ci̇, Azi̇z Türkoğlu

Turkish Journal of Botany

This study is based on macrofungi collected from Karcı Mountain (Denizli) between 2000 and 2002. As a result of field and laboratory studies, 66 taxa belonging to 2 classes (Ascomycetes and Basidiomycetes) and 25 families are reported. Leucopaxillus tricolor (Peck) Kühner was added to the Turkish mycoflora as a new record.


A New Species Of Silene L. (Caryophyllaceae) From South Anatolia, Turkey, Yavuz Bağci Jan 2008

A New Species Of Silene L. (Caryophyllaceae) From South Anatolia, Turkey, Yavuz Bağci

Turkish Journal of Botany

Silene duralii Y. Bağcı sp. nov. from Ermenek-Kazancı (C4: Karaman province) is described and illustrated. It is closely related to S. capillipes Boiss. & Heldr., from which it differs mainly in its hairiness, leaves, and floral features. Diagnostic morphological characters are discussed and the diagnostic key for related Silene L. species, which are widespread in Turkey, is reorganized. The geographical distribution of the new species and other related species were mapped. Notes are also presented on its ecology, and biogeographical and conservation status. Chromosome count for S. duralii was 2n = 24. In addition, the seed coat surface of S. …


A New Species Of Gagea Salisb. (Liliaceae) From Sivas (Central Anatolia, Turkey), Ergi̇n Hamzaoğlu, Ümi̇t Budak, Ahmet Aksoy Jan 2008

A New Species Of Gagea Salisb. (Liliaceae) From Sivas (Central Anatolia, Turkey), Ergi̇n Hamzaoğlu, Ümi̇t Budak, Ahmet Aksoy

Turkish Journal of Botany

Gagea sivasica Hamzaoğlu (Liliaceae) is described as a new species from Sivas province (Central Anatolia, Turkey). A Latin diagnosis, a taxonomic description, an illustration of the new species, and some comments on geographical distribution and its affinity to Gagea chlorantha Schult.f. are given.


Comparative Morphological, Anatomical, And Palynological Studies On The Genus Stachys L. Sect. Ambleia Bentham (Lamiaceae) Species In Turkey, Muhi̇tti̇n Di̇nç, Meryem Öztürk Jan 2008

Comparative Morphological, Anatomical, And Palynological Studies On The Genus Stachys L. Sect. Ambleia Bentham (Lamiaceae) Species In Turkey, Muhi̇tti̇n Di̇nç, Meryem Öztürk

Turkish Journal of Botany

In this study, comparative morphological, anatomical and palynological studies of Stachys L. sect. Ambleia Bentham species (Lamiaceae) in Turkey are carried out on the plants collected from their type localities. These species are Stachys cydni Kotschy ex Gemici & Leblebici and S. yildirimlii M. Dinç, which are highly local endemics. Morphologically, micromorphological features of the trichomes are studied. Trichome morphology appears to have a taxonomic value with respect to the results. The anatomical studies on cross-sections of stems, leaves, and surface sections of leaves are presented. According to the anatomical comparison between the 2 species, the pith structure of the …


Three New Macrofungi Records From Turkey, Hakan Alli, Azi̇z Türkoğlu, Mustafa Işiloğlu Jan 2008

Three New Macrofungi Records From Turkey, Hakan Alli, Azi̇z Türkoğlu, Mustafa Işiloğlu

Turkish Journal of Botany

This study is based on macrofungal specimens collected from Buldan district (Denizli) in 2006. As a result of field and laboratory studies, 3 new records of macrofungi species were determined for Turkey. These are Otidea bufonia (Pers.) Boud., Hebeloma cavipes Huijsman, and Russula nauseosa (Pers.) Fr.


Taxonomy And Threatened Categories Of Three Achillea L. (Asteraceae-Anthemideae) Species Previously Cited In The Data Deficient (Dd) Category, Turan Arabaci, Bayram Yildiz Jan 2008

Taxonomy And Threatened Categories Of Three Achillea L. (Asteraceae-Anthemideae) Species Previously Cited In The Data Deficient (Dd) Category, Turan Arabaci, Bayram Yildiz

Turkish Journal of Botany

This study presents the taxonomy and threatened categories of 3 Achillea L. (Asteraceae-Anthemideae) species: A. membranacea (Labill.) DC., A. brachyphylla Boiss. & Hausskn., and A. boissieri Hausskn. ex Boiss. These species belong to sect. Babounya (DC.) O.Hoffm. and were previously placed in the data deficient (DD) category in the Red Data Book of Turkish Plants. Descriptions, localities, distribution map, and images of the species are given. Threatened categories of the species were determined as A. membranacea in VU, and A. brachyphylla and A. boissieri in EN.


Systematic Revision Of Elaphoglossum (Dryopteridaceae) In French Polynesia, With The Description Of Three New Species, Germinal Rouhan, David H. Lorence, Timothy J. Motley, Judith Garrison Hanks, Robbin C. Moran Jan 2008

Systematic Revision Of Elaphoglossum (Dryopteridaceae) In French Polynesia, With The Description Of Three New Species, Germinal Rouhan, David H. Lorence, Timothy J. Motley, Judith Garrison Hanks, Robbin C. Moran

Biological Sciences Faculty Publications

Species descriptions and a key for the nine species of Elaphoglossum (Dryopteridaceae) in French Polynesia are provided. Three new species are described: E. austromarquesense from the southern Marquesas Islands, E. florencei from Raiatea and Moorea, and E. meyeri from Rapa. Each species is illustrated by a line drawing of the habit, and spore images using a scanning electron microscope. Images of scales, one of the most important diagnostic characters in the genus, are also included. © 2008 The Linnean Society of London.


Classification And Biogeography Of New World Grasses: Anomochlooideae, Pharoideae, Ehrhartoideae, And Bambusoideae, Emmet J. Judziewicz, Lynn G. Clark Dec 2007

Classification And Biogeography Of New World Grasses: Anomochlooideae, Pharoideae, Ehrhartoideae, And Bambusoideae, Emmet J. Judziewicz, Lynn G. Clark

Aliso: A Journal of Systematic and Floristic Botany

Molecular data support Anomochlooideae and Pharoideae as the two most basal extant clades within Poaceae. Anomochlooideae are endemic to the New World and have two tribes and two genera including the widespread Streptochaeteae (3–4 spp.) and the critically endangered Anomochloeae (1 sp.) of coastal Bahia, Brazil. Pharoideae are pantropical with one tribe, three genera, and 14 species; all eight species of Pharus occur only in the New World. Bambusoideae and Ehrhartoideae are sister groups and together form a clade sister to Pooideae, although support for this set of relationships is low. Ehrhartoideae are a worldwide subfamily represented in the New …


Classification And Biogeography Of New World Grasses: Chloridoideae, Paul M. Peterson, J. Travis Columbus, Susan J. Pennington Dec 2007

Classification And Biogeography Of New World Grasses: Chloridoideae, Paul M. Peterson, J. Travis Columbus, Susan J. Pennington

Aliso: A Journal of Systematic and Floristic Botany

Subfamily Chloridoideae (Poaceae) in the New World includes 72 genera (61 native, 11 introduced), 678 species (607 native), and, including intraspecific taxa, 817 total taxa. The five largest genera are Muhlenbergia (147 species), Eragrostis (111), Sporobolus (76), Bouteloua (57), and Chloris (35). Three tribes are recognized in this study: Cynodonteae, Eragrostideae, and Zoysieae, with ten, three, and two subtribes, respectively. Cynodonteae, the largest tribe, comprise 58 genera and 451 species (67% of all New World chloridoids), including 25 genera (98 species, 22% of all New World Cynodonteae) with unknown affinities (incertae sedis). In Mexico, the USA, and Canada there are …


Classification And Biogeography Of Panicoideae (Poaceae) In The New World, Fernando O. Zuloaga, Osvaldo Morrone, Gerrit Davidse, Susan J. Pennington Dec 2007

Classification And Biogeography Of Panicoideae (Poaceae) In The New World, Fernando O. Zuloaga, Osvaldo Morrone, Gerrit Davidse, Susan J. Pennington

Aliso: A Journal of Systematic and Floristic Botany

Panicoideae (Poaceae) in the New World comprise 107 genera (86 native) and 1357 species (1248 native). As circumscribed herein, Panicoideae include eight tribes: Andropogoneae, Arundinelleae, Centotheceae, Gynerieae, Isachneae, Paniceae, Steyermarkochloeae, and Thysanolaeneae. The two major tribes are Andropogoneae with 230 species (16.95% of all New World panicoids), and Paniceae with 1082 species (79.73%). Andropogoneae are divided into nine subtribes (Andropogoninae, Anthistiriinae, Coicinae, Germainiinae, Ischaeminae, Rottboelliinae, Saccharinae, Sorghinae, and Tripsacinae), while Paniceae are divided into seven subtribes (Arthropogoninae, Cenchrinae, Digitariinae, Melinidinae, Panicinae, Paspalinae, and Setariinae). Brazil is the center of diversity of New World panicoids with 741 species (54.6% of all …


A Morphological Investigation Of Colchicum L. (Liliaceae) Species In The Mediterranean Region In Turkey, Olcay Di̇nç Düşen, Hüseyi̇n Sümbül Jan 2007

A Morphological Investigation Of Colchicum L. (Liliaceae) Species In The Mediterranean Region In Turkey, Olcay Di̇nç Düşen, Hüseyi̇n Sümbül

Turkish Journal of Botany

The morphological features of Colchicum L. species were studied based on samples collected from the Mediterranean region in Turkey between 2000 and 2004. Typifications, synonym lists, descriptions, ecology, and phytogeography are provided for all Colchicum species and relationships to similar species are discussed. New features were determined that were not previously given in descriptions of Colchicum species in the Flora of Turkey, and useful identification keys (for both flowering material and leafing-fruiting material) were prepared for all Colchicum species in the Mediterranean region of Turkey.


The Taxonomy And Variation Of Leaf Anatomical Characters In The Genus Aegilops L. (Poaceae) In Iran, Navaz Kharazian Jan 2007

The Taxonomy And Variation Of Leaf Anatomical Characters In The Genus Aegilops L. (Poaceae) In Iran, Navaz Kharazian

Turkish Journal of Botany

This study concerns the evaluation of leaf anatomical characters (7 qualitative and 12 quantitative characters) among 26 accessions of the Aegilops L. species. The results of this study showed that the anatomical characters have high variation in the width of stomata, the number of long cells in the adaxial epidermis, the number of short cells in the abaxial epidermis, the number of stomata in the abaxial epidermis, the occurrence of prickles in the adaxial epidermis, and the width of phloem cells. The variations in anatomical characters were related to the cold and warm areas of Iran and commonly occurred among …


The Phytoplankton Community (Except Bacillariophyceae) Of Lake Abant (Bolu, Turkey), Abuzer Çelekli̇, Olcay Obali, Okan Külköylüoğlu Jan 2007

The Phytoplankton Community (Except Bacillariophyceae) Of Lake Abant (Bolu, Turkey), Abuzer Çelekli̇, Olcay Obali, Okan Külköylüoğlu

Turkish Journal of Botany

A total of 162 phytoplankton species found monthly from 3 littoral and 2 vertical stations between June 2003 and June 2005 were identified from Lake Abant (Bolu, Turkey). Some species, such as Trachelomonas volvocina Ehrenberg, Cryptomonas ovata Ehrenberg, and Ceratium hirundinella (Müller) Dujardin showed frequent occurrence almost every month, but others had specific seasonality. Phytoplankton composition of this lake was dominated by Chlorophyta, accounting for about 58.6% of the species richness. Phytoplankton composition in Lake Abant included many new reported (> 30) taxa for the algal flora of Turkey.


Macrofungi Of Honaz Mountain (Denizli), Kudret Gezer, Mustafa Işiloğlu, Azi̇z Türkoğlu, Hakan Alli Jan 2007

Macrofungi Of Honaz Mountain (Denizli), Kudret Gezer, Mustafa Işiloğlu, Azi̇z Türkoğlu, Hakan Alli

Turkish Journal of Botany

Specimens of macrofungi were collected from localities on Honaz Mountain (Denizli) in 2005 and 2006, particularly during autumn and spring. Field and laboratory studies revealed a total of 109 taxa belonging to 64 genera, 32 families and 2 classes. Six taxa belong to Ascomycetes and 103 to Basidiomycetes.


Juniperus Oxycedrus L. Subsp. Oxycedrus Var. Spilinanus Yalt., Eliçin & Terzioğlu: A New Variety From Turkey, Fai̇k Yaltirik, Gökhan Eli̇çi̇n, Sali̇h Terzi̇oğlu Jan 2007

Juniperus Oxycedrus L. Subsp. Oxycedrus Var. Spilinanus Yalt., Eliçin & Terzioğlu: A New Variety From Turkey, Fai̇k Yaltirik, Gökhan Eli̇çi̇n, Sali̇h Terzi̇oğlu

Turkish Journal of Botany

A new variety from Turkey is described and illustrated: Juniperus oxycedrus L. subsp. oxycedrus var. spilinanus Yalt., Eliçin & Terzioğlu. This variety grows in forest clearings of Pinus brutia Ten. and P. nigra J.F.Arnold subsp. nigra var. caramanica (Loudon) Rehder, and on stony slopes (800-1400 m) in Spildağı National Park, Manisa (B1) in West Anatolia. Its diagnostic morphological characters are discussed.


Phylogeny And New Intrageneric Classification Of Allium (Alliaceae) Based On Nuclear Ribosomal Dna Its Sequences, Nikolai Friesen, Reinhard M. Fritsch, Frank R. Blattner Jan 2006

Phylogeny And New Intrageneric Classification Of Allium (Alliaceae) Based On Nuclear Ribosomal Dna Its Sequences, Nikolai Friesen, Reinhard M. Fritsch, Frank R. Blattner

Aliso: A Journal of Systematic and Floristic Botany

The internal transcribed spacer region (ITS) of nuclear ribosomal DNA was sequenced from 195 representative species of Allium, two species of Nothoscordum, and one species each of lpheion, Dichelostemma, and Tulbaghia. Within the Allium species the lengths of the ITS regions were in a range from 612 to 661 base pairs and pairwise genetic distances reached up to 46%. The ITS data supported the inclusion of Nectaroscordum, Caloscordum, and Milula into Allium. Subgenera Rhizirideum and Allium, as well as sects. Reticulatobulbosa and Oreiprason were non-monophyletic taxa. Based on the phylogenetic relations, a new classification of genus Allium consisting of 15 …


Achillea Salicifolia Besser Subsp. Salicifolia (Asteraceae) In Turkey, With Taxonomic Remarks, Turan Arabaci, Bayram Yildiz Jan 2006

Achillea Salicifolia Besser Subsp. Salicifolia (Asteraceae) In Turkey, With Taxonomic Remarks, Turan Arabaci, Bayram Yildiz

Turkish Journal of Botany

This study includes taxonomical improvements of Achillea salicifolia Besser subsp. salicifolia and distributions in Turkey. Differences between A. salicifolia subsp. salicifolia and relatives are discussed, and synonyms are established. Furthermore, description, localities, distribution map, and key of allied species are given.


Ferula Parva Freyn & Bornm. (Apiaceae): A Contribution To An Enigmatic Species From Turkey, Mehmet Sağiroğlu, Hayri̇ Duman Jan 2006

Ferula Parva Freyn & Bornm. (Apiaceae): A Contribution To An Enigmatic Species From Turkey, Mehmet Sağiroğlu, Hayri̇ Duman

Turkish Journal of Botany

Ferula parva Freyn & Bornm. was first collected from Central Anatolia (Turkey B5 Kayseri-Yozgat in declivibus apricis inter Kayseri et Yozgat, 1890) by Bornmüller. No specimens belonging to this species have been collected since the type and Andrasovszky specimens. When the Flora of Turkey was being prepared, Dr. H. Peşmen considered this species imperfectly known; therefore, it was not included in the keys. In the present paper, diagnostic morphological characters are discussed. In addition, its ecology, conservation status, SEM photographs of the surface of mericarps, and chromosome numbers are presented.


New Records Of Tricholomataceae And Cortinarius (Pers.) Gray From Turkey, Ertuğrul Sesli̇ Jan 2006

New Records Of Tricholomataceae And Cortinarius (Pers.) Gray From Turkey, Ertuğrul Sesli̇

Turkish Journal of Botany

Lyophyllum multiforme (Peck) H.E.Bigelow, Cortinarius caesiocanescens M.M.Moser and C. corrosus Fr. were collected for the first time from Turkey.


Presence Of Cirsium Eriophorum (L.) Scop. (Asteraceae) In Turkey, Ruzi̇ye Daşkin, Özer Yilmaz, Gönül Kaynak Jan 2006

Presence Of Cirsium Eriophorum (L.) Scop. (Asteraceae) In Turkey, Ruzi̇ye Daşkin, Özer Yilmaz, Gönül Kaynak

Turkish Journal of Botany

Specimens of Cirsium eriophorum (L.) Scop. were collected from A2 (A) Bursa, Uludağ. This study confirms the presence of this species, which is given as a doubtful record in the flora of Turkey. A description, photographs, an illustration of the median phyllaries and a distribution map of the species are also given.


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 …


Macrofungi Of Bekilli (Denizli) District, Saci̇t Köse, Kudret Gezer, İsa Gökler, Azi̇z Türkoğlu Jan 2006

Macrofungi Of Bekilli (Denizli) District, Saci̇t Köse, Kudret Gezer, İsa Gökler, Azi̇z Türkoğlu

Turkish Journal of Botany

The material of this study comprises macrofungi specimens collected from different localities in Bekilli (Denizli) in 1998 and 1999. As a result of field and laboratory studies, 61 taxa belonging to 2 classes (Ascomycetes and Basidiomycetes) and 28 families are reported.


New Records For The Macromycota Of Turkey From Balıkesir Province, Fadi̇me Yilmaz Ersel Jan 2005

New Records For The Macromycota Of Turkey From Balıkesir Province, Fadi̇me Yilmaz Ersel

Turkish Journal of Botany

Macrofungi samples recorded in this study were collected from different localities in Balıkesir province from 1998 to 2001. As a result of the field and laboratory studies, 4 taxa belonging to 4 families were recorded for the first time in Turkey. These are Hebeloma mesophaeum (Pers.) Fr. var. lacteum Vesterh., Lepiota griseovirens Maire, Lactarius violascens (J.Otto) Fr., and Melanoleuca griseofumosa Secr. ex Singer & Clémençon.


Bryophytes Of Turkey: An Annotated Reference List Of The Species With Synonyms From The Recent Literature And An Annotated List Of Turkish Bryological Literature, Harald Kürschner, Adnan Erdağ Jan 2005

Bryophytes Of Turkey: An Annotated Reference List Of The Species With Synonyms From The Recent Literature And An Annotated List Of Turkish Bryological Literature, Harald Kürschner, Adnan Erdağ

Turkish Journal of Botany

Based on published records, in Turkey 3 species of Anthocerotopsida, 163 species and intraspecific taxa of Hepaticopsida and 721 species and intraspecific taxa of Bryopsida are recognised. They are listed in alphabetical order in a reference list to achieve a certain standardisation in the use of names. Including synonyms, in total 1731 names are treated. Critical taxa, doubtful records or taxonomical remarks are briefly discussed in 77 annotations. In addition, an up-to-date list of 219 references (from 1829 to January 2004) on the bryological literature of Turkey is given. The references are annotated and provide information on content, especially on …


Cystoderma Cinnabarinum (Alb. & Schwein.) Fayod, A New Turkish Mycota Record, Ertuğrul Sesli̇ Jan 2005

Cystoderma Cinnabarinum (Alb. & Schwein.) Fayod, A New Turkish Mycota Record, Ertuğrul Sesli̇

Turkish Journal of Botany

Cystoderma cinnabarinum (Alb. & Schwein.) Fayod is recorded for the first time from Turkey. A key to the known Turkish species of Cystoderma Fayod is given.


The Genus Crataegus L. (Rosaceae) With Special Reference To Hybridisation And Biodiversity In Turkey, Ali̇ Arslan Dönmez Jan 2004

The Genus Crataegus L. (Rosaceae) With Special Reference To Hybridisation And Biodiversity In Turkey, Ali̇ Arslan Dönmez

Turkish Journal of Botany

The genus Crataegus L. has approximately 200 species worldwide. However, the number of the species is increased to 1200 species by some taxonomists. Traditionally, the genus is placed in the subfamily Maloideae and it is closely related to the genera Pyracantha M.Roem., Mespilus L. and Hesperomeles Lindl. The latest phylogenetic analysis of the genus shows that it is closest to the genus Osteomeles Lind. Crataegus is divided into 40 sections by various taxonomists. The genetic diversity centre of the section Crataegus ranges from Turkey to Iran. According to field observations in Turkey, new diversity centres are proposed. The latest studies …