Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Plant Sciences

PDF

Taxonomy

Institution
Publication Year
Publication
Publication Type

Articles 1 - 30 of 281

Full-Text Articles in Entire DC Network

Two New Species Of Inocybe (Inocybaceae: Agaricomycetes) From Turkey Based On Morphological Characteristics And Phylogenetic Evidence, Oğuzhan Kaygusuz, Ditte Bandini, Henning Knudsen, Meike Piepenbring May 2024

Two New Species Of Inocybe (Inocybaceae: Agaricomycetes) From Turkey Based On Morphological Characteristics And Phylogenetic Evidence, Oğuzhan Kaygusuz, Ditte Bandini, Henning Knudsen, Meike Piepenbring

Turkish Journal of Botany

During a survey of agarics in the Mediterranean region of southwestern Turkey, some noteworthy mushrooms were collected. Among the specimens, two represent new species of Inocybe which are proposed and illustrated in this study as Inocybe pseudogeophylla and I. succinea. Molecular phylogenetic analyses based on a nuc rDNA ITS1-5.8S-ITS2 (ITS) and partial 28S rDNA (LSU) dataset reveal that these species belong to the Inocybe geophylla group. The sequences of the new species form two independent lineages and differ from the known species of Inocybe by a unique combination of morphological characteristics. Detailed macro- and micromorphological features, colour photographs, habitat and …


The Sect. Tricheroides In The Genus Knautia (Caprifoliaceae) Is More Complex Then Known: An Unusual New Species From Türkiye, Candan Aykurt, Mertcan Gülben, Sinem Günaydin, Duygu Sari, Ramazan Süleyman Göktürk, Emirhan Berberoğlu, Serkan Gülsoy May 2024

The Sect. Tricheroides In The Genus Knautia (Caprifoliaceae) Is More Complex Then Known: An Unusual New Species From Türkiye, Candan Aykurt, Mertcan Gülben, Sinem Günaydin, Duygu Sari, Ramazan Süleyman Göktürk, Emirhan Berberoğlu, Serkan Gülsoy

Turkish Journal of Botany

During a biodiversity survey in the Western Taurus Mountains (Antalya, Türkiye), a new species of the genus Knautia (Dipsacoideae, Caprifoliaceae), K. sivridaghense, was discovered. The new species, which is characterized by its dwarf caespitose perennial habit, is found in rocky places under mixed forests at elevations of 1400–1450 m. Knautia sivridaghense is distinguished from its morphologically similar species, K. goecmenii, especially by its dwarf caespitose perennial habit, unbranched stems, length of involucral bracts, and other floral characteristics. Our phylogenetic analyses based on the nuclear ITS and chloroplast petN(ycf6)-psbM regions confirm its placement within Sect. Tricheroides, contributing to the understanding of …


The Plants Database: Providing Basic Plant Information, J S. Peterson, J F. Henson, W Oaks, J T. Kartesz Feb 2024

The Plants Database: Providing Basic Plant Information, J S. Peterson, J F. Henson, W Oaks, J T. Kartesz

IGC Proceedings (1997-2023)

The PLANTS database provides basic plant information to the United States Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS), its clients, cooperators, and the general public via the World Wide Web (Fig. 1). The foundation of PLANTS is a taxonomic backbone (checklist) of the vascular and nonvascular plants of North America (north of Mexico) and United States territories in the Caribbean and Pacific regions. Attribute data are appended to this backbone pertaining to distribution, vegetative specifications, nativity, federal and state status, crop data, growth form, growth parameters, species abstracts, and images.


On The Border Of Extinction And Speciation, Polygala Seyfegoluensis (Polygalaceae), A New Species From Marshy Habitat, Central Türkiye: Under The Threat Of Climate Change, Water Retreat, And Subsequent Degradation, Ali̇ Aslan Dönmez, Zübeyde Uğurlu Aydin, İbrahi̇m Sirri Yüzbaşioğlu Jan 2024

On The Border Of Extinction And Speciation, Polygala Seyfegoluensis (Polygalaceae), A New Species From Marshy Habitat, Central Türkiye: Under The Threat Of Climate Change, Water Retreat, And Subsequent Degradation, Ali̇ Aslan Dönmez, Zübeyde Uğurlu Aydin, İbrahi̇m Sirri Yüzbaşioğlu

Turkish Journal of Botany

Polygala seyfegoluensis Dönmez, Uğurlu & Yüzb. (Polygalaceae) is herein described and illustrated as a new species from Kırşehir Province around Seyfe Lake in Central Türkiye. This new species is similar to P. pruinosa and P. supina is distinctly characterized by its prostrate habit, nearly glabrous and smaller flower parts, and an unwinged capsule. A phylogenetic analysis was conducted to show the placement of the new species within selected Polygala taxa using the trnL-F and rbcL markers. Based on the field observation, an evolutionary scenario is proposed for the new species under the driving forces of climate change, the shrinking of …


Characterizing New Plant Fossils With Woody Growth From The Battery Point Formation Of Quebec (Canada), Emma T. Casselman Jan 2024

Characterizing New Plant Fossils With Woody Growth From The Battery Point Formation Of Quebec (Canada), Emma T. Casselman

Cal Poly Humboldt theses and projects

The oldest woody growth has been recognized in several Early Devonian (ca. 410-395 Ma) euphyllophytes. Their taxonomic diversity is difficult to evaluate due to a lack of quantitative methods for comparing plants based on secondary xylem anatomy. In turn, this hinders understanding of their implications for the evolution of plant development. To develop metrics that quantify secondary xylem anatomy and allow for conclusive comparisons, I investigated extant taxa and Early Devonian fossil woody taxa. I developed multiple metrics for quantifying tracheid size as a function of position in the secondary xylem and tested them on a dataset of extant gymnosperms. …


Trichoderma Indica: A New Species In The Longibrachiatum Clade From Western Ghats, India, Ajay Lagashetti, Sanjay Singh, Paras Nath Singh Nov 2023

Trichoderma Indica: A New Species In The Longibrachiatum Clade From Western Ghats, India, Ajay Lagashetti, Sanjay Singh, Paras Nath Singh

Turkish Journal of Botany

Trichoderma is a hyperdiverse genus that comprises species showing a wide range of applications. In this study, we have found an isolate of the genus Trichoderma from a soil sample collected from Vetal Hill, Pune, Maharashtra State, India. The isolate was found to be morphologically distinct compared to other isolates of the Longibrachiatum clade showing longer phialides and shorter conidia. Moreover, a phylogenetic analysis based on combined sequence data of the second-largest nuclear RNA polymerase subunit (rpb2), and the translation elongation factor 1-α (tef1-α) confirmed the uniqueness of the present isolate, showing an independent branch supported by strong bootstrap values …


A New Species Of Parasola Section Conopileae (Psathyrellaceae) From Pakistan, Zaman Khan, Muhammad Awais Arshad, Abdul Rehman Niazi, Abdul Nasir Khalid Nov 2023

A New Species Of Parasola Section Conopileae (Psathyrellaceae) From Pakistan, Zaman Khan, Muhammad Awais Arshad, Abdul Rehman Niazi, Abdul Nasir Khalid

Turkish Journal of Botany

The genus Parasola is sparsely documented in Pakistan with almost all of its reports from lowlands or northern areas of the country. In this study, we describe a new species, Parasola cinnamomescens, from the Thal Desert, a subtropical region located in Punjab Province, Pakistan. Evidence from morphology and DNA sequence data encompassing the internal transcribed spacer (ITS1-5.8S-ITS2 = ITS) and D1/D2 domain of the large subunit of nuclear ribosomal DNA (28S) reveals that this species is divergent from all previously known species and confirms its placement in Parasola sect. Conopileae. It is recognized by convex to hemispherical or broadly conical …


A New Scrophularia (Scrophulariaceae) Species Without Staminodes In The Enigmatic ?Canina Clade? From The Western Taurus (Türkiye), Candan Aykurt, Mertcan Gülben, Bariş Özüdoğru, Duygu Sari, İsmai̇l Gökhan Deni̇z, Burçi̇n Çingay Sep 2023

A New Scrophularia (Scrophulariaceae) Species Without Staminodes In The Enigmatic ?Canina Clade? From The Western Taurus (Türkiye), Candan Aykurt, Mertcan Gülben, Bariş Özüdoğru, Duygu Sari, İsmai̇l Gökhan Deni̇z, Burçi̇n Çingay

Turkish Journal of Botany

The new species of Scrophularia was discovered among the screes and stony slopes of the Alakır Valley (Antalya) located in the Western Taurus. The most remarkable morphological feature of the species is its flowers without staminodes. With this feature, the species is unique among the representatives of the ?Canina? clade in Türkiye. The new species is closely related to S. floribunda endemic to Türkiye and East Aegean Islands (Greece) according to our phylogenetic analyses based on the nuclear ITS and chloroplast trnL-F regions. Apart from its corollas without staminodes, the new species differs from its morphologically similar …


Two New Species Of Tulostoma (Agaricales, Basidiomycota) From The Neotropics, Alexandro Lima, Gislaine Melanda, Paulo Marinho, T A, María Paz Martín, Iuri Baseia Sep 2023

Two New Species Of Tulostoma (Agaricales, Basidiomycota) From The Neotropics, Alexandro Lima, Gislaine Melanda, Paulo Marinho, T A, María Paz Martín, Iuri Baseia

Turkish Journal of Botany

Tulostoma catimbauense and T. deltaconcavum, both collected from Neotropical region, in the Vale do Catimbau National Park, Brazil, are proposed as new to science. Detailed macro- and micromorphological descriptions, including scanning electron microscopy of the basidiospores, are provided. ITS nrDNA sequence analyses were used to investigate the phylogenetic position of these taxa in the genus Tulostoma. Discussions about related species were carried out.


Calceolaria Nivalis Subsp. Lanatifolia, A New Subspecies Of Calceolariaceae From Northern Peru, Pamela Puppo Apr 2023

Calceolaria Nivalis Subsp. Lanatifolia, A New Subspecies Of Calceolariaceae From Northern Peru, Pamela Puppo

Biological Sciences Faculty Research

A new subspecies of Calceolaria nivalis, C. nivalis subsp. lanatifolia is described and illustrated. The new subspecies was collected in Uchumarca district, department of La Libertad, Peru, between 2300–3850 m elevation. Calceolaria nivalis subsp. lanatifolia is characterized by the lanate indumentum in the lower surface of the leaves, villous petioles, peduncles, and pedicels, and sepals with a strigose margin internally.


Seed Morphology Of Some Plantago (Plantaginaceae) Species In Iran And Its Systematic And Phylogenetic Implications, Saeed Mohsenzadeh, Masoud Sheidai, Fahimeh Koohdar Jan 2023

Seed Morphology Of Some Plantago (Plantaginaceae) Species In Iran And Its Systematic And Phylogenetic Implications, Saeed Mohsenzadeh, Masoud Sheidai, Fahimeh Koohdar

Turkish Journal of Botany

Plantago is a cosmopolitan genus with approximately 200 species and various infrageneric classifications have been reported. In this study, the seed morphologies of 19 species of Plantago from Iran were studied and documented in detail using scanning electron microscopy and light microscopy. The studied species were grouped by using statistical analyses such as a minimum spherical cluster method based on Euclidean distance, principal coordinate analysis, and multidimentional scaling. We have described four types based on the seed shape and states of the inner side of the studied seeds: convex- angular type, convex-elliptic type, flat-elliptic type, and concave-elliptic type. In this …


Improvements In The Phylogeny Of Epilobium And Chamaenerion Inferred From Nrdna And Cpdna Data Focusing On Türkiye, Suzan Kundakçi, Serdar Makbul, Mutlu Gültepe, Murat Erdem Güzel, Seda Okur, Kami̇l Coşkunçelebi̇ Jan 2023

Improvements In The Phylogeny Of Epilobium And Chamaenerion Inferred From Nrdna And Cpdna Data Focusing On Türkiye, Suzan Kundakçi, Serdar Makbul, Mutlu Gültepe, Murat Erdem Güzel, Seda Okur, Kami̇l Coşkunçelebi̇

Turkish Journal of Botany

Epilobium and Chamaenerion included 165 and 8 species over the world, respectively. The members of the genera are distributed particularly in moist habitats from subpolar to tropical regions.This paper aims to provide improvements in the phylogeny of the genera Epilobium and Chamaenerion using Internal Transcribed Spacer (ITS) of nuclear DNA and matK gene sequence data evaluation with maximum parsimony, maximum likelihood, and Bayesian inference criterations. A total of 188 individual accessions belonging to 28 taxa were newly generated and 110 sequences imported from GenBank (NCBI) were analysed. The nrDNA and plastid DNA gene trees supported to treat Epilobium and Chamaenerion …


A New Species Of Arrhenia (Agaricales, Hygrophoraceae) From Guizhou Province, China, Jing Wang, Huan Gao, Dong Mei Liu, Chun Ying Deng, Shao Qi Zhou Jan 2023

A New Species Of Arrhenia (Agaricales, Hygrophoraceae) From Guizhou Province, China, Jing Wang, Huan Gao, Dong Mei Liu, Chun Ying Deng, Shao Qi Zhou

Turkish Journal of Botany

Arrhenia nivea is a new bryophilous species of Arrhenia from a valley in southwestern China'a subtropical monsoon humid climate zone.The species is characterized by pure white basidiomata with an irregularly discoid to cupulate 1.5-4.5 mm diameter pileus, reduced hymenium, nonamyloid basidiospores, lack of cystidia, the presence of clamps, and no incrusted pigment of the pileipellic hyphae. Phylogenetic analysis using ITS sequence data confirmed that it arised from a pathway separate from other species of Arrhenia.


Taxonomic Revision And Morphometric Analysis Of Selected Anthurium (Araceae) Species From Bolivia And Peru, Daniel M. Tarazona Ocana Nov 2022

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 Oct 2022

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 May 2022

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 Jan 2022

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 Jan 2022

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 Jan 2022

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 Jan 2022

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 Jan 2022

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 Jan 2022

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 Jan 2022

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 Jan 2022

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 Jan 2022

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 …


Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Thomas O. Powers Dec 2021

Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Thomas O. Powers

Department of Plant Pathology: Faculty Publications

DNA barcoding with the mitochondrial COI gene reveals distinct haplotype subgroups within the monophyletic and parthenogenetic nematode species, Mesocriconema xenoplax. Biological attributes of these haplotype groups (HG) have not been explored. An analysis of M. xenoplax from 40 North American sites representing both native plant communities and agroecosystems was conducted to identify possible subgroup associations with ecological, physiological, or geographic factors. A dataset of 132 M. xenoplax specimens was used to generate sequences of a 712 bp region of the cytochrome oxidase subunit I gene. Maximum-likelihood and Bayesian phylogenies recognized seven COI HG (≥99/0.99 posterior probability/bootstrap value). Species delimitation …


Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Tom Powers Dec 2021

Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Tom Powers

Department of Plant Pathology: Faculty Publications

DNA barcoding with the mitochondrial COI gene reveals distinct haplotype subgroups within the monophyletic and parthenogenetic nematode species, Mesocriconema xenoplax. Biological attributes of these haplotype groups (HG) have not been explored. An analysis of M. xenoplax from 40 North American sites representing both native plant communities and agroecosystems was conducted to identify possible subgroup associations with ecological, physiological, or geographic factors. A dataset of 132 M. xenoplax specimens was used to generate sequences of a 712 bp region of the cytochrome oxidase subunit I gene. Maximum-likelihood and Bayesian phylogenies recognized seven COI HG (≥99/0.99 posterior probability/bootstrap value). Species …


A Systematic And Biogeographic Study Of Trillium (Melanthiaceae), Jayne A. Lampley Dec 2021

A Systematic And Biogeographic Study Of Trillium (Melanthiaceae), Jayne A. Lampley

Doctoral Dissertations

Trillium (Melanthiaceae, Parideae) has a disjunct distribution occurring in eastern and western North America, and eastern Asia. Past studies have examined the phylogeny and historical biogeography of Melanthiaceae and Parideae, however these studies either did not fully examine these aspects within Trillium or did not employ sufficiently broad taxonomic or character sampling to clarify relationships among taxa. The first phylogenetic analysis presented in this study provides a resolved phylogeny for Trillium s.l. and Paris s.l. by using a dataset of 70 plastid coding genes and by sampling broadly from Trillium s.s., Pseudotrillium, Trillidium, Paris s.s., Daiswa, and Kinugasa. The results …


Nematode Biodiversity In Lincoln, Nebraska's Tallgrass Prairie Corridor, Abigail Borgmeier Aug 2021

Nematode Biodiversity In Lincoln, Nebraska's Tallgrass Prairie Corridor, Abigail Borgmeier

Department of Plant Pathology: Dissertations, Theses, and Student Research

The tallgrass prairie was once one of the most diverse grasslands on the planet, however over 95% has been converted to agriculture in the past 150 years. The remaining prairie is still host to a wide variety of plants, insects, mammals, and soil-dwelling microorganisms, creating an incredibly complex ecosystem. The first aim of this study is to compare three approaches for the measurement of nematode diversity within a 10-mile-long protected prairie habitat corridor near Lincoln, Nebraska. The methods are 1) a traditional morphological analysis of 150 nematodes per study site, 2) a metabarcoding analysis using the 18S genetic marker of …


Taxonomy And Systematics Of Plumeria L. (Apocynaceae) In The Caribbean Islands, Nichole M. Tiernan May 2021

Taxonomy And Systematics Of Plumeria L. (Apocynaceae) In The Caribbean Islands, Nichole M. Tiernan

FIU Electronic Theses and Dissertations

Plumeria L. (Apocynaceae) is a genus of flowering trees and shrubs that are often cultivated in tropical gardens worldwide. The majority of its species occur in the Greater Antilles with many as single-island endemics. The only comprehensive revision for the genus was done by Robert E. Woodson Jr. (1937) who recognized only seven species and created a ‘Plumeria obtusa complex’ with a plethora of synonyms. The first study provides an overview of the Caribbean Island members of the genus with a focus on Plumeria filifolia Griseb., a thin-leaved species endemic to Cuba that is featured because of its incredible …