Academia.edu no longer supports Internet Explorer.
To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.
2009, Notulae Botanicae Horti …
2013 •
Polystachya section Superpositae is a group of montane and submontane African epiphytes with thirteen species (including the newly described in this paper). During a scientific expedition to Bamenda Highland, Cameroon a new species, Polystachya bamendae, was found and it is described here. The new entity was compared with 398 herbarium specimens representing the section, including the type collections. The molecular analyses of the ITS and matK strongly support the results of morphological studies and reveal close relationship between the new species and the species of the section Superpositae. Two hypotheses supporting function of the matK gene in the examined species are presented. The phylogenetic and morphological relation of Polystachya bamendae to P. lindblomii and P. superposita is discussed. The distribution range of the section is analyzed and a discussion about the distribution of the species is presented. A distribution map of the section and dichotomous key to the species of Superpositae are provided. The occurrence of the species of the section in two Biodiversity Hotspots (Guinea Forests of West Africa and Eastern Afromontane) is discussed. Keywords: Africa ITS matK Morphology , Taxonomy
Plant Systematics and Evolution
Taxonomic study of Polystachya Hook. (Orchidaceae) from Asia2010 •
In Asia, three species of Polystachya (Orchidaceae) are recognized, based on detailed morphological studies. They occur in southern Asia, from Tamil Nadu State in southern India and Yunnan Province in southeastern China to Sumbawa Island in southern Indonesia. As circumscribed here, two Asiatic species are endemic to southern India apart from P. concreta, which is a taxon of pantropical distribution. As part of a detailed nomenclatural review, 21 lectotypes and 1 neotype are designated. For each species treated, a full synonymy, detailed description, illustration, and distribution map are provided. A key for determination of the Asiatic species is included. One species from southeastern India (Kalrayan Hills) is newly described: P. seidenfadeniana. Dendrobium parvum Seidenf. is reduced to a synonym of Polystachya concreta (Jacq.) Garay & H.R. Sweet.
Plant Systematics and Evolution
Two new species of Polystachya Hook. (Orchidaceae) from Africa2009 •
Two new species of Polystachya Hook. are described and illustrated: Polystachya rydingii Baranow & Mytnik occurring from the Democratic Republic of Congo and P. sosefii Baranow & Mytnik from Cameroon. The species belong to the section Polystachya Kraenzl., which is the only pantropical section in the genus. Maps of the distribution for the new species and their closest relatives and a brief discussion with notes on their habitat, ecology, and altitude are provided.
Acta Societatis Botanicorum Poloniae
Isochilostachya Mytnik & Szlach., gen. nov., a new genus of Polystachyinae Schltr. (Orchidaceae)2011 •
A new genus of Orchidaceae (Polystachyinae), Isochilostachya, is described. It is morphologically similar to Polystachya Hook. but is distinct by the narrower, grass-like leaves arranged in the upper part of the stem, long and acuminate floral bracts and sepals, and long clavate or capitate hairs densely arranged on the lip. A comprehensive description of the new genus is provided. A list of examined specimens and information about distribution, habitat, and altitude for each species are presented. A position of the members of the new genus in the cladogram recently obtained from molecular analyses of Polystachyinae is briefly discussed. A taxonomic key to Polystachyinae is included. Eleven new combinations on species level are validated. Eight lectotypes are designated. Most of the species of Isochilostachya are endemic to particular mountains of the Eastern Arc (Eastern Afromontane hotspot) in north-east Tanzania therefore a brief discussion about their restricted distribution is provided. Keywords: Polystachya sect. Isochiloides; taxonomy; endemism; Eastern Afromontane hotspot; Africa
polish Botanical Journal
Neoburttia, a new genus for Polystachya longiscapa (Polystachyinae, Orchidaceae).2011 •
Polystachya subtribe Polystachyinae is a subject of ongoing taxonomic work. This paper describes and illustrates a new monotypic genus, Neoburttia, provides a key for determination of all genera of P. subtribe Polystachyinae, briefl y discusses morphological differences between Neoburttia and its closest relatives, Dendrobianthe and Neobenthamia, and validates a new combination on species level. Also given are a comprehensive description and full synonymy, as well as detailed ecological, phenological and distribution data for the species of the new genus. The restricted distribution of the new genus is briefl y discussed, as it is endemic to the Uluguru Range (Eastern Afromontane biodiversity hotspot). Keywords: Africa, Eastern Afromontane biodiversity hotspot, morphology, narrow endemic, new genus, Polystachyinae, taxonomy
Biodiversity: Research and Conservation
Chelystachya, a new genus of the subtribe Polystachyinae (Orchidaceae)2011 •
Chelystachya, a new genus of the subtribe Polystachyinae (Orchidaceae) A new genus of Orchidaceae (Polystachyinae), Chelystachya Mytnik & Szlach. is described and illustrated basing on results of molecular and morphological studies. It is related to Polystachya Hook. but is distinct in having large, single-noded, spherical, succulent pseudobulbs flattened on the substratum, pendent and densely pubescent inflorescence, lowermost lip, and lip veins directed to the lip base. Results of phylogenetic analyses based on plastid markers validate the reason for a new genus. Keys for determination of all genera of the subtribe Polystachyinae and both species of Chelystachya are included. Two new combinations are made. A comprehensive description and full synonymy, as well as detailed ecological, phenological and distribution data and a list of 125 examined specimens are provided for each taxon treated. Because Polystachya affinis Lindl. is considered a holotype of Polystachya Hook. sect. Affi...
Biodiversity: Research and Conservation
Chelystachya, a new genus of the subtribe Polystachyinae (Orchidaceae)2011 •
Botanical Journal of the Linnean Society
Genetic variation and phylogenetic relationships of a pantropical species group in Polystachya (Orchidaceae)2011 •
Amplified fragment length polymorphism (AFLP) markers were used to investigate the relationships among Polystachya accessions from a group of closely related pantropical tetraploids. Before starting with the fingerprinting analyses, the polyploid accessions were first included in a ...
Flora-Morphology, Distribution, Functional …
Vegetative Anatomy of Some Ophrys, Orchis and Dactylorhiza (Orchidaceae) Taxa In Trakya Region of Turkey2009 •
Journal of lipid research
Identification of the peroxisomal beta-oxidation enzymes involved in the biosynthesis of docosahexaenoic acid2001 •
Journal of Pedagogy - Revista de Pedagogie
SPERANŢA FARCA, ABOUT THE FEAR OF THE UNKNOWN. Bucharest, Universitara Publishing House, 2020, 266 pages, ISBN 978-606-28-1167-92021 •
SAGE Open Medicine
Predictors of pregnant women’s intention to vaccinate against coronavirus disease 2019: A facility-based cross-sectional study in southwest Ethiopia2021 •
2012 3rd Power Electronics and Drive Systems Technology (PEDSTC)
Mechanical force optimization on superconductor element of shield-type superconducting FCLs2012 •
Applied Surface Science
Iron doped LiCoPO 4 thin films for lithium-ion microbatteries obtained by ns pulsed laser deposition2018 •
Frontiers in Neurology
Sex Differences in Insular Cortex Gyri Responses to the Valsalva Maneuver2016 •
2009 •
2020 •
Biografie naukowe. Perspektywa transdyscyplinarna
„Historia każdego rozbitka jest zawsze moją historią” — o współistnieniu biografii badanego i badacza2011 •
The Journal of Physical Chemistry
High-Resolution Solid-State 13C and 15N NMR Spectroscopy of Pyrazole and 3,5-Dimethylpyrazole Adsorbed on Alumina and Silica1994 •
Yearbook of the Association of Pacific Coast Geographers
Concrete Babylon: Life Between the Stars: To Dwell and Consume (with)in the Fold(s) of Hollywood, CA2007 •
Research in Social Stratification and Mobility
Temporal developments in intergenerational transmission of education: Case for black South Africans2015 •
Proceedings of 5th International Electronic Conference on Water Sciences
Soil-water dynamics in flood irrigated orange orchard in central India: Integrated approach of sap flow measurements and HYDRUS 1D model2020 •
2013 •
2012 •
Sage Open Medicine
Time to blood, respiratory and urine culture positivity in the intensive care unit: Implications for de-escalation2021 •
Lecture Notes in Computer Science
Design and maintenance of data-intensive web sites1998 •
REUNIR: Revista de Administração, Contabilidade e Sustentabilidade
Concepção De Ativos: Um Estudo Sobre a Compreensão Dos Discentes Do Curso De Graduação Em Ciências Contábeis Da Ufersa2014 •
Clinical and Laboratorial Research in Dentistry
Maxillary removable partial denture combined with O’ring attachment implant: a case report2018 •
Turkish Neurosurgery
A new hope in the treatment of intraventricular haemorrhage in preterm infants: mesenchymal stem cells2021 •
2004 •
Mustafa Kemal Üniversitesi Tıp Dergisi
Ultrasonography Guided Spinal Anesthesia in a Case with Severe Kyphoscoliosis2016 •
Journal of Construction Project Management and Innovation
Strategic Alliance in the Construction Industry: Barriers Facing Its Implementation in an Emerging Market2020 •