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Articles 1 - 12 of 12
Full-Text Articles in Plant Sciences
Taxonomic Revision And Morphometric Analysis Of Selected Anthurium (Araceae) Species From Bolivia And Peru, Daniel M. Tarazona Ocana
Taxonomic Revision And Morphometric Analysis Of Selected Anthurium (Araceae) Species From Bolivia And Peru, Daniel M. Tarazona Ocana
Theses
The genus Anthurium (Araceae) consists of around 1,200 species distributed in the Neotropics, particularly in Central and South America. The montane forests in the eastern flank of the Andes, ranging from northern Ecuador to central Bolivia; hereafter, the East Andes Gradient region, are particularly rich in terms of species diversity, and include an understudied group of Anthurium species endemic to the region. Within this group of species, some taxa are difficult to distinguish from each other mainly due to the lack of identification keys, incomplete species descriptions and unknown synonyms. In this study, a combination of traditional taxonomic techniques and …
The Ecology And Evolution Of Species Rarity In Oaks (Quercus Spp.), Yingtong Wu
The Ecology And Evolution Of Species Rarity In Oaks (Quercus Spp.), Yingtong Wu
Dissertations
Rare species are susceptible to extinction due to ecological and genetic factors. Understanding the distribution, ecology, and evolution of rare species can provide useful information for effective conservation. To investigate species rarity, this dissertation focuses on a species-rich and ecologically diverse genus, Quercus (oaks). In Chapter 1, I aimed to understand how interactions between hosts and soil microbes contribute to habitat restriction in oak species. I performed a soil inoculum experiment on two pairs of sister oak species that show habitat divergence. I found that host-specific soil microbes contribute to habitat divergence and exclusion among sister species of oaks, but …
Plectus Of The Prairie: A Case Study Of Taxonomic Resolution From A Nematode Biodiversity Survey, Abigail Borgmeier, Kaitlin Gattoni, Timothy Harris, Rebecca Higgins, Peter Mullin, Dorota Porazinska, Kirsten S. Powers, David A. Wedin, Tom Powers
Plectus Of The Prairie: A Case Study Of Taxonomic Resolution From A Nematode Biodiversity Survey, Abigail Borgmeier, Kaitlin Gattoni, Timothy Harris, Rebecca Higgins, Peter Mullin, Dorota Porazinska, Kirsten S. Powers, David A. Wedin, Tom Powers
Department of Plant Pathology: Faculty Publications
Taxonomic resolution is a critical component of biodiversity assessments. In this case study, we examined a single taxon within a larger study of nematode diversity to evaluate the taxonomic resolution of different diversity assessment methods. The selected taxon was the microbial-feeding genus Plectus, a group considered to include multiple cosmopolitan species. The methods included a morphological evaluation by light microscopy, Sanger sequencing of PCR amplicons of COI and 18S gene regions, and 18S metabarcoding sequencing. The study sites were 15 remnant tallgrass prairie plots in eastern Nebraska. In the morphological analysis, we observed two basic morphotypes, a short-tailed form …
Arundinella Stenostachya (Arundinella, Poaceae), A Reevaluated New Species From Se Asia, Liqiong Jiang, Zhenwen Liu, Ende Liu, Atchara Teerawatananon, Yuehua Wang, Hua Peng
Arundinella Stenostachya (Arundinella, Poaceae), A Reevaluated New Species From Se Asia, Liqiong Jiang, Zhenwen Liu, Ende Liu, Atchara Teerawatananon, Yuehua Wang, Hua Peng
Turkish Journal of Botany
Arundinella stenostachya, a new species, is described and illustrated. It is morphologically similar to A. decempedalis and A. bengalensis, but differs from the former species by the length of panicle branches, type of trichome on nodes and pedicels length, and from the latter in height and diameter of culms, the length and width of leaf blades, pedicels length, and the length of panicles and branches. The new species has been mistakenly identified as A. decempedalis and A. bengalensis. Molecular analyses based on ITS sequences also support A. stenostachya as a distinct species.
New Species And New Record In Agaricus Subg. Minores From India, Entaj Tarafder, Arun Kumar Dutta, Krishnendu Acharya
New Species And New Record In Agaricus Subg. Minores From India, Entaj Tarafder, Arun Kumar Dutta, Krishnendu Acharya
Turkish Journal of Botany
Two new species of Agaricus, namely A. midnapurensis and A. purpureosquamulosus, belonging to A. subg. Minores, are proposed here as new to science based on specimens collected in West Bengal, India. Agaricus midnapurensis is distinguished by its medium-sized basidiomata with a pileus covered by greyish brown to brown or dark brown squamules, ellipsoid to broadly ellipsoid basidiospores with a mean value of 7.3 × 5.4 µm, and broadly clavate to pyriform cheilocystidia, 22-28 × 10-14 µm. Agaricus purpureosquamulosus has purplish coloured pileus squamules, ellipsoid to elongate basidiospores with a mean value of 7.3 × 4.5 µm, and clavate cheilocystidia measuring …
Limacella Subtropicana (Amanitaceae, Agaricales), A New Species From Pakistan Based On Morphological And Molecular Phylogenetic Evidences, Aiman Izhar, Abdul Rehman Niazi, Muhammad Asif, Muhammad Haq Nawaz, Hira Bashir, Abdul Nasir Khalid
Limacella Subtropicana (Amanitaceae, Agaricales), A New Species From Pakistan Based On Morphological And Molecular Phylogenetic Evidences, Aiman Izhar, Abdul Rehman Niazi, Muhammad Asif, Muhammad Haq Nawaz, Hira Bashir, Abdul Nasir Khalid
Turkish Journal of Botany
Basidiomata of a hitherto undescribed Limacella species were collected from the grasslands of Punjab, Pakistan. We describe it as Limacella subtropicana, which is characterized by its viscid, white to creamy pileus, white to the creamy stipe, changing to brown when bruised, subglobose basidiospores measuring 4.0?6.3 × 3.7?5.5 ?m, an ixotrichodermal pileipellis with subcylindric to clavate terminal elements and the common presence of clamp connections in all tissues. Maximum likelihood and Bayesian inference analyses of ITS sequences and LSU sequences of nrDNA confirmed its placement in the genus Limacella. A comprehensive description and a comparison of the new taxon with other …
Morphological And Phylogenetic Studies On Whalleya, With W. Hainanensis Sp. Nov, Yin-Hui Pi, Si-Han Long, You-Peng Wu, Li-Li Liu, Xu Zhang, Qing-De Long, Yan Lin, Ying-Qian Kang, Ji-Chuan Kang, Qi Rui Li
Morphological And Phylogenetic Studies On Whalleya, With W. Hainanensis Sp. Nov, Yin-Hui Pi, Si-Han Long, You-Peng Wu, Li-Li Liu, Xu Zhang, Qing-De Long, Yan Lin, Ying-Qian Kang, Ji-Chuan Kang, Qi Rui Li
Turkish Journal of Botany
Two species of Whalleya from Guizhou and Hainan Provinces were collected during the investigation of Xylariales from 2019 to 2021. According to morphological and molecular characteristics, Whalleya hainanensis sp. nov. and W. microplaca are introduced. Whalleya hainanensis differs from W. microplaca by its obovoid or tubular perithecia and the slightly raised stromata; and differs from W. maculata by its smaller ascospores. Their detailed morphological descriptions and illustrations are provided. The taxonomic position of Whalleya is discussed.
Taxonomy And Phylogeny Of A New Species Of Pseudocercospora On Solanum Nigrum From India, Archana Singh, Sanjay Yadav, Raghvendra Singh, Nawal Dubey
Taxonomy And Phylogeny Of A New Species Of Pseudocercospora On Solanum Nigrum From India, Archana Singh, Sanjay Yadav, Raghvendra Singh, Nawal Dubey
Turkish Journal of Botany
A new species Pseudocercospora solanicola is discovered causing severe leaf spot disease on Solanum nigrum from Sonebhadra. Species is described and illustrated based on morphology, molecular sequence analysis and phylogeny of the large subunit (LSU) and internal transcribed spacer region of the nuclear ribosomal RNA (rRNA) gene. Morphologically, new species has similarity with allied species in Pseudocercospora but differs in having black circular, velvety leaf spot and size of stromata, conidia and conidiophores. A key to Pseudocercospora species on Solanum has been provided.
Inocybe Viscida (Inocybaceae: Agaricomycetes), A New Species From Mediterranean Forests Of Turkey, Oğuzhan Kaygusuz, Henning Knudsen, Ditte Bandini, İbrahi̇m Türkekul
Inocybe Viscida (Inocybaceae: Agaricomycetes), A New Species From Mediterranean Forests Of Turkey, Oğuzhan Kaygusuz, Henning Knudsen, Ditte Bandini, İbrahi̇m Türkekul
Turkish Journal of Botany
Inocybe viscida sp. nov., a novel species found in a forest with old trees of Pinus brutia and tertiary relict endemic Liquidambar orientalis in coastal area of southwestern Turkey, is described and illustrated. We present this new species based on morphological and molecular data from nuclear rDNA internal transcribed spacer region (ITS1-5.8SITS2 = ITS) and the portions of nuc 28S rRNA (LSU) gene. Comprehensive description, field photographs, line drawings of the microscopic features and comparisons with phenetically similar taxa and phylogenetically related species are discussed.
Lamium Cappadocicum, A New Species From Central Anatolia, Turkey: Evidence From Molecular And Morphological Studies, Ferhat Celep, Fergan Karaer, Bryan T. Drew
Lamium Cappadocicum, A New Species From Central Anatolia, Turkey: Evidence From Molecular And Morphological Studies, Ferhat Celep, Fergan Karaer, Bryan T. Drew
Turkish Journal of Botany
Lamium is a taxonomically convoluted genus of about 34 species. Within Lamium, the L. garganicum species complex is particularly challenging. Here, based on morphological and molecular studies, Lamium cappadocicum Celep & Karaer sp. nova (Lamiaceae) is separated from L. garganicum and L. bilgilii and described as a new species, and L. garganicum subsp. rectum (= L. garganicum subsp. pulchrum) is resurrected. The new species is only known from the Hasan Mountain (Aksaray) in Central Anatolia, Turkey. Lamium cappadocicum is closely related to L. garganicum subsp. rectum but differs from it by its mat-forming caespitose habit, reniform (rarely ovate …
Dianthus Berkayii (Caryophyllaceae), A New Species From Turkey, Zeki̇ Aytaç, Ali̇ Kandemi̇r, Tuğba Ertuğrul, Ahter Fi̇şne, Mevlüde Alev Ateş
Dianthus Berkayii (Caryophyllaceae), A New Species From Turkey, Zeki̇ Aytaç, Ali̇ Kandemi̇r, Tuğba Ertuğrul, Ahter Fi̇şne, Mevlüde Alev Ateş
Turkish Journal of Botany
Dianthus berkayii belongs to sect. Fimbriati was described and illustrated as a new species from Erzincan Province in Eastern Anatolia, Turkey. In the current study morphological, palynological, and molecular characters were compared and discussed with its closely related species. The new species is similar to D. crinitus with fimbriate corolla, linear, acuminate, ± rigid leaves. Also similar to D. vanensis with fimbriate corolla, linear, acuminate, ± rigid, curved divaricate leaves. But distinctly different from D. crinitus by having linear and curved divaricate leaves, stem with 3?4(?5) internodes (not 5?8), a style much longer than petals, and different from D. vanensis …
Stachys Istanbulensis (Lamiaceae) A New Species From Turkey: Evidence From Morphological, Micromorphological And Molecular Analysis, Özal Güner
Turkish Journal of Botany
Stachys species show high morphological diversity and their main diagnostic characteristics are calyx and corolla length, ratio of tooth to calyx, and verticillaster arrangement. This manuscript describes and provides detailed morphological, micromorphological and molecular information about a new species, Stachys istanbulensis Ö. Güner, and its close relatives. The new species resembles S. recta complex, but is distinguished by its procumbent flowering stems, shorter calyx and teeth, congested verticillasters, creamy yellow corolla and oblong-obovoid nutlets. Moreover, the periclinal surfaces of S. istanbulensis nutlets are usually wrinkled, while those of S. recta are smooth. In addition, nrITS DNA region sequences were used …