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Showing 56951 to 57000 of 59105 works
Impact scores of invasive plants are biased by disregard of environmental co-variation and non-linearity
Prioritisation of high-impact species is becoming increasingly important for management of introduced species (‘neobiota’) because of their growing number of which, however, only …
Characteristics of exotic ants in North America
The worldwide transport of species beyond their native range is an increasing problem, e.g. for global biodiversity. Many introduced species are able to establish in new environme…
Alien plants in urban nature reserves: from red-list species to future invaders?
Urban reserves, as other protected areas, are aimed at preserving species richness but the conservation effort in these protected areas is complicated by a high proportion of alie…
Beyond EICA: understanding post-establishment evolution requires a broader evaluation of potential selection pressures
Research on post-establishment evolution in nonnative plant populations has focused almost exclusively on testing the Evolution of Increased Competitive Ability (EICA) hypothesis,…
Counting “exotics”
None (as it is submitted as a "Short Communication")
Secondary wind dispersal enhances long-distance dispersal of an invasive species in urban road corridors
Roads contribute to habitat fragmentation and function as dispersal barriers for many organisms. At the same time many nonnative plant species are associated with road systems, a …
Invasive plants as catalysts for the spread of human parasites
As serious as are the consequences of invasive species that directly cause human afflictions through their production of lethal protease inhibitors (Bryonia alba), allergens (Part…
Open minded and open access: introducing NeoBiota, a new peer-reviewed journal of biological invasions
The Editorial presents the focus, scope, policies, and the inaugural issue of NeoBiota, a new open access peer-reviewed journal of biological invasions. The new journal NeoBiota i…
Dendrobium naungmungense (Orchidaceae, Dendrobieae), a new species from Kachin State, Myanmar
Dendrobium naungmungense, a new species from Naungmung, Kachin State, North Myanmar, is described and illustrated. It is morphologically similar to D. ciliatilabellum and D. vexab…
Molecular systematics and the evolution of mycoheterotrophy of tribe Neottieae (Orchidaceae, Epidendroideae)
Neottieae comprise about 150–200 species and are distributed mainly in temperate and subtropical zones of the northern hemisphere. Mycoheterotrophy is common in Neottieae. Based o…
Gastrodia kachinensis (Orchidaceae), a new species from Myanmar
Gastrodia kachinensis, a new species of Orchidaceae, is described and illustrated from Putao, Kachin State, Myanmar. It is morphologically similar to G. gracilis, presumably its n…
The taxonomic identity of three varieties of Lecanorchis nigricans (Vanilleae, Vanilloideae, Orchidaceae) in Japan
To elucidate the taxonomy of the Lecanorchis nigricans Honda, 1931 species complex, the present study investigated the detailed morphology of three L. nigricans varieties in Japan…
Reduction of the Hawaiian genus Platydesma into Melicope section Pelea (Rutaceae) and notes on the monophyly of the sec…
Platydesma, an endemic genus to the Hawaiian Islands containing four species, has long been considered of obscure origin. Recent molecular phylogenetic studies have unequivocally …
Nahuatlea: a new genus of compositae (Gochnatieae) from North America
In the course of a detailed molecular study of the tribe Gochnatieae (Compositae: Gochnatioideae) it became apparent that the genus Gochnatia (sensu Cabrera) was not monophyletic …
Vascular flora of Kenya, based on the Flora of Tropical East Africa
Kenya, an African country with major higher plant diversity, has a corresponding diversity of plant associations, because of the wide geographic distribution, diverse climatic con…
The systematic position of Dryopteris blanfordii subsp. nigrosquamosa (Ching) Fraser-Jenkins within the genus Dryopteri…
Dryopteris blanfordii (C.Hope) C.Chr. is a member of the Dryopteridaceae, growing in high altitude Picea or Abies forests (2900–3500 m) in China and India. Phylogenetic relationsh…
Spiranthes himalayensis (Orchidaceae, Orchidoideae) a new species from Asia
Spiranthes himalayensis is described here as a new species based primarily on molecular phylogenetic evidence followed by morphological comparison with other Asian Spiranthes spec…
Isoetes nana, a new species from the coastal mountains of southeastern Brazil
Isoetes nana, a new species from the coastal mountains of southeastern Brazil (Serra de Itatiaia), is described, illustrated and compared to similar species. This species can be d…
Morphological phylogeny of Tradescantia L. (Commelinaceae) sheds light on a new infrageneric classification for the gen…
Throughout the years, three infrageneric classifications were proposed for Tradescantia along with several informal groups and species complexes. The current infrageneric classifi…
Ontogenetic variability in old and new collections of Dicranophyllum gallicum Grand’Eury from the late Palaeozoic of Eu…
Dicranophyllum gallicum Grand’Eury is described by means of a morphometric analysis of eighty two samples from various old and new localities in western and central Europe. Stem, …
Coelogyne magnifica (Orchidaceae), a new species from northern Myanmar
Coelogyne magnifica (Orchidaceae), a new species from Putao, Kachin State, Myanmar, is described and illustrated. It belongs to Coelogyne section Ocellatae Pfitzer & Kraenzl. and …
Data Release: DNA barcodes of plant species collected for the Global Genome Initiative for Gardens Program, National Mu…
The Global Genome Initiative has sequenced and released 1961 DNA barcodes for genetic samples obtained as part of the Global Genome Initiative for Gardens Program. The dataset inc…
Molecular phylogenetics of cool-season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calot…
Circumscriptions of and relationships among many genera and suprageneric taxa of the diverse grass tribe Poeae remain controversial. In an attempt to clarify these, we conducted p…
Revisions of Ruizodendron and Pseudephedranthus (Annonaceae) including a new species and an overview of most up-to-date…
We present revisions of the Neotropical genera Ruizodendron and Pseudephedranthus (Annonaceae). Ruizodendron includes a single species R. ovale. Pseudephedranthus now comprises tw…
Integrative research identifies 71 new plant species records in the state of Rio Grande do Norte (Brazil) and enhances …
A National Forest Inventory (NFI) encompassing the entire territory of Brazil is in progress. It is coordinated and promoted by the Brazilian Forest Service of the Ministry of Env…
The Shenzhen Declaration on Plant Sciences – Uniting plant sciences and society to build a green, sustainable Earth
Actions and priorities to connect the global community of plant scientists with the world’s changing societies are today more imperative than ever. Environmental degradation, unsu…
The Shenzhen Declaration on Plant Sciences: Too late or just in time?
On 29 July 2017 in the closing session of the XIX International Botanical Congress held in Shenzhen, China, nearly 7,000 plant scientists from 77 countries unanimously endorsed a …
On merging Acer sections Rubra and Hyptiocarpa: Molecular and morphological evidence
In this study, we expanded Acer sect. Rubra Pax to include A. sect. Hyptiocarpa Fang. Traditionally, section Rubra comprises two iconic species, Acer rubrum Linnaeus (red maple) a…
A valid name for the Xishuangbanna gourd, a cucumber with carotene-rich fruits
Herbarium specimens deposited in publicly accessible collections are the basis for all scientific names because only permanent specimens can be re-studied by independent researche…
Corrigenda: Premna bhamoensis (Lamiaceae, Premnoideae), a new species from Kachin State, northeastern Myanmar
A new Prmena species, named as Premna bhamoensis Y.T. Tan & B. Li, was recently described in Tan et al. (2017), however an overlooked spelling error emerged in the authorship of …
Eithea lagopaivae, a new critically endangered species in the previously monotypic genus Eithea Ravenna (Amaryllidaceae)
Eithea lagopaivae Campos-Rocha & Dutilh, sp. nov. is described as the second species of the formerly monotypic genus Eithea. It is characterized by a one flowered inflorescence, c…
Bituminaria antiatlantica (Psoraleeae, Fabaceae), a new species from Morocco
A new species of Bituminaria is described and illustrated: Bituminaria antiatlantica Brullo, C. Brullo, Cambria, Cristaudo & Giusso, sp. nov., which is endemic to Anti-Atlas Mount…
Pteris latipinna sp. nov. (Pteridaceae), a new species segregated from Pteris fauriei
Pteris fauriei is widely distributed in Eastern Asia and has high morphological variation. Some morphologically similar plants related to this species are difficult to distinguish…
Typifications for Galactia purshii and G. volubilis (Fabaceae)
The pervasive difficulties encountered with studying Galactia in the eastern USA necessitate additional typifications to stabilize the taxonomy. Galactia purshii is lectotypified …
Waarnemingen.be – Plant occurrences in Flanders and the Brussels Capital Region, Belgium
Waarnemingen.be - Plant occurrences in Flanders and the Brussels Capital Region, Belgium is a species occurrence dataset published by Natuurpunt. The dataset contains almost 1.2 m…
Stipa pennata subsp. ceynowae (Poaceae, Pooideae), a new taxon from Central Europe
Based on numerical analyses of macromorphological characters, scanning electron microscopy observation of leaves and lemma micromorphology, as well as field observations, Stipa pe…
Study of the leaf anatomy in cross-section in the Iberian species of Festuca L. (Poaceae) and its systematic significan…
A study of the leaf anatomy in the species of the genus Festuca present in the Iberian Peninsula was made. A total of 68 taxa were included and 15 characters were measured in leaf…
Coelogyne putaoensis (Orchidaceae), a new species from Myanmar
Coelogyne putaoensis, a new species of section Ocellatae from Putao, Kachin State, Myanmar, is described and illustrated. It is morphologically similar to C. taronensis and C. wei…
Key to Syagrus identification using leaflet margin anatomy: Supplement to “A revision of Syagrus (Arecaceae)”
Presented here is an alternative method of identification for species of the Neotropical palm genus Syagrus. It makes use of anatomical characters found in the leaflet margins and…
Typification of binomials in Xyrissection Nematopus (Xyridaceae) published by L.A. Nilsson
A nomenclatural revision of fifteen taxa of Xyris (Xyridaceae) described by L.A. Nilsson (1892) is presented as part of a taxonomic revision of the genus in Brazil. All the protol…
The correct typification of Tradescantia crassula (Commelinaceae)
Here, we present evidence that the alleged correction of the typification of Tradescantia crassula recently proposed by Pellegrini, Forzza and Sakuragui is erroneous. Furthermore,…
Taxonomic study on Japanese Salvia (Lamiaceae): Phylogenetic position of S. akiensis, and polyphyletic nature of S. lut…
Both Salvia akiensis and S. lutescens (Lamiaceae) are endemic to Japan. Salvia akiensis was recently described in 2014 in the Chugoku (= SW Honshu) region, and each four varieties…
Hoya of the Philippines part I. Hoya migueldavidii (Apocynaceae, Asclepiadoideae), a new species from Northern Mindanao…
A new species of Hoya R.Br. from Mindanao (Philippines), Hoya migueldavidii Cabactulan, Rodda & Pimentel, is described and illustrated. It is a member of Hoya section Acanthostemm…
Two new combinations, lectotypifications and a new name for Costa Rican Palicourea s.l.
Species of the complex and diverse genera Psychotria and Palicourea are common but little-known elements in many tropical forest ecosystems. DNA-phylogenetic studies and a re-eval…
Selaginella guihaia (Selaginellaceae): A new spikemoss species from southern China and northern Vietnam around the Gulf…
Selaginella guihaia sp. nov. (Selaginellaceae), a new species of spikemoss from southern China and northern Vietnam around the Gulf of Tonkin (Beibu Gulf), is described and illust…
Nomenclatural novelties and notes in Penstemon (Plantaginaceae)
Seven nomenclatural novelties in Penstemon (Plantaginaceae) are proposed for taxa that will be included in the forthcoming treatment of the genus in the Flora of North America Nor…
Novelties in Brazilian Tradescantia L. (Commelinaceae)
We present a new record to the Brazilian territory (i.e. Tradescantia boliviana), the rediscovery of a species exclusively known from the cultivated type collection (i.e. T. valid…
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