Contribute Geolocation Data
Help us add geographic metadata to scientific works!
The works listed below have been harvested from various scientific sources but do not have geolocation data yet. If you know the geographic location or area mentioned in any of these works, you can help us improve our database.
Know a publication that should be in OPTIMAP? Enter its DOI and we will fetch its metadata from Crossref and enrich it automatically. If we already have it, you will be taken to its page.
Please log in to add works by DOI — use the user menu at the top right of the page.
pensoft-publishers)
Showing 6101 to 6150 of 6881 works
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…
A taxonomic revision of Herminium L. (Orchidoideae, Orchidaceae)
Herminium (Orchidaceae, Orchidoideae) is a medium-sized genus widespread in the northern hemisphere, with a clear centre of diversity in the Himalayas. We present a comprehensive …
Adetogramma (Polypodiaceae), a new monotypic fern genus segregated from Polypodium
Polypodiaceae is one of the most diverse and abundant families of ferns in tropical and subtropical forests. Despite multiple studies investigating its phylogeny and taxonomy, sev…
Phylogenetic analyses place the monotypic Dryopolystichum within Lomariopsidaceae
The monotypic fern genus Dryopolystichum Copel. combines a unique assortment of characters that obscures its relationship to other ferns. Its thin-walled sporangium with a vertica…
Synopsis of Commelina L. (Commelinaceae) in the state of Rio de Janeiro, reveals a new white-flowered species endemic t…
A synopsis for the genus Commelina in the state of Rio de Janeiro, Brazil, is presented here, including a new species, ten new synonyms, five designated lectotypes, two designated…
Scientific user requirements for a herbarium data portal
The digitization of herbaria and their online access will greatly facilitate access to plant collections around the world. This will improve the efficiency of taxonomy and help re…
A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae)
Due to some common or similar features (e.g., small leaf, spurless, yellow flower), three Chinese species of the genus Epimedium (Berberidaceae), E. ecalcaratum, E. platypetalum, …
Neotypification of Clytostoma sciuripabulum Hovel.
A neotype is designated for Clytostoma sciuripabulum the basionym of Bignonia sciuripabulum, the presently accepted name of the species.
A free-access online key to identify Amazonian ferns
There is urgent need for more data on species distributions in order to improve conservation planning. A crucial but challenging aspect of producing high-quality data is the corre…
Cousinia waldheimiana (Asteraceae) a new record from Uzbekistan (Central Asia)
During the study of plant specimens in the Central herbarium Academy of Sciences of Uzbekistan Institute of the gene pool of plants and animals (TASH) one new record for the flora…
Nine species from Madagascar are moved from Vernonia to Distephanus (Compositae, Vernonieae)
The genus Distephanus is native to Madagascar, the Mauritius, central and southern Africa, Yemen (Socotra Island), and China. The majority of the diversity is found in Madagascar.…
Four new synonyms and a new combination in Parnassia (Celastraceae)
Parnassia yunnanensis had been previously described based on mixed specimens containing materials partially belonging to P. cacuminum, which makes the application of P. yunnanensi…
Dataset of herbarium specimens of threatened vascular plants in Catalonia
This data paper describes a specimens’ dataset of the Catalonian threatened vascular plants conserved in five public Catalonian herbaria (BC, BCN, HGI, HBIL and MTTE). Catalonia i…
Synoptic taxonomy of Cortaderia Stapf (Danthonioideae, Poaceae)
Cortaderia (Poaceae; Danthonioideae) is a medium-sized genus of C3 tussock grasses, widespread in the temperate to tropic-alpine regions of South America. It is particularly impor…
A new species of Erythrostemon (Leguminosae, Caesalpinioideae) from the western Río Balsas Depression, Mexico
A new legume species from a seasonally dry forest of the Western Río Balsas Depression, in the states of Guerrero and Michoacán, Mexico, Erythrostemon guevarafeferii, is herein de…
On the identity and typification of Solanum brasilianum Dunal (Solanaceae)
Solanum brasilianum Dunal was described by Dunal in 1813 with reference only to an illustration in an 18th century work by Leonard Plukenet. The plate is difficult to interpret an…
The pollen morphology of Pelargonium endlicherianum and Pelargonium quercetorum (Geraniaceae) in Turkey
The pollen morphology of Pelargonium endlicherianum Fenzl. and Pelargonium quercetorum Agnew. from the family Geraniaceae was examined under light microscopy and scanning electron…
Resurrection of the genus Aphyllon for New World broomrapes (Orobanche s.l., Orobanchaceae)
Recent phylogenetic studies support a monophyletic clade of New World broomrapes (Orobanche sects. Gymnocaulis and Nothaphyllon) sister to the Old World genus Phelipanche. I place…
František Nábělek’s Iter Turcico-Persicum 1909–1910 – database and digitized herbarium collection
The Czech botanist František Nábělek (1884−1965) explored the Middle East in 1909-1910, visiting what are now Israel, Palestine, Jordan, Syria, Lebanon, Iraq, Bahrain, Iran and Tu…
Galium shinasii (Rubiaceae): a new species of Galium L. from Eastern Turkey
Galium shinasii Yıldırım (Rubiaceae), is described as a new species from Malatya Province in eastern Anatolia, Turkey. The new species is morphologically related to Galium cornige…
The identity of Callicarpa minutiflora Y. Y. Qian (Lamiaceae) and taxonomic synonym of C. longifolia Lamarck
Although the specific epithet of Callicarpa minutiflora Y. Y. Qian has been revised for many times, during the study of the genus Callicarpa, we find that C. minutiflora Y. Y. Qia…
RAINBIO: a mega-database of tropical African vascular plants distributions
The tropical vegetation of Africa is characterized by high levels of species diversity but is undergoing important shifts in response to ongoing climate change and increasing anth…
Lecanorchis tabugawaensis (Orchidaceae, Vanilloideae), a new mycoheterotrophic plant from Yakushima Island, Japan
A new species, Lecanorchis tabugawaensis Suetsugu & Fukunaga, sp. nov. from Yakushima Island, Kagoshima Prefecture, Japan, is described and illustrated. Lecanorchis tabugawaensis …
Checklist for the crop weeds of Paraguay
Paraguay, a country whose economy is based mainly on agriculture and livestock for export, has experienced a major expansion in mechanized crops during the last few decades. Despi…
Confirming the identity of two enigmatic “spiny solanums” (Solanum subgenus Leptostemonum, Solanaceae) collected by Jea…
Taxonomic revision of the tropical Asian species of Solanum revealed two names, Solanum poka Dunal and Solanum graciliflorum Dunal, whose identities were uncertain and whose appli…
How to help
If you recognize any works that reference specific geographic locations, please login, confirm your account, and contribute metadata.
In case you find any errors in other metadata fields, if you see a work with incorrect location or time information, or if you find works that should be included in our database, please contact us: