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Showing 4501 to 4550 of 6881 works
Taxonomic studies of Glochidion (Phyllanthaceae) from the Indo-China Peninsula (II): The identities of G. anamiticum an…
The names Glochidion anamiticum (Kuntze) Kuntze ex Merrill and G. annamense Beille were previously reduced to synonyms of G. eriocarpum Champ. ex Benth. However, literature examin…
Similarity analysis between species of the genus Quercus L. (Fagaceae) in southern Italy based on the fractal dimension
The fractal dimension (FD) is calculated for seven species of the genus Quercus L. in Calabria region (southern Italy), five of which have a marcescent-deciduous and two a sclerop…
Phylogeny and taxonomic synopsis of Poa subgenus Pseudopoa (including Eremopoa and Lindbergella) (Poaceae, Poeae, Poina…
Eremopoa is a small genus of annual grasses distributed from Egypt to western China. Phylogenetic analyses of plastid and nuclear ribosomal DNA show that Eremopoa species, togethe…
Bulbophyllum chrysolabium (Orchidaceae, Epidendroideae, Malaxideae), a new species from Yunnan, China
Bulbophyllum chrysolabium, a new species belonging to section Racemosae from Yunnan, China is described and illustrated. The species is related to B. orientale and B. morphologoru…
Splitting Echinocactus: morphological and molecular evidence support the recognition of Homalocephala as a distinct gen…
Molecular phylogenetic studies of the six currently accepted species in the genus Echinocactus have partially clarified certain aspects of its phylogeny. Most of the studies lack …
Poa secunda J. Presl (Poaceae): a modern summary of infraspecific taxonomy, chromosome numbers, related species and inf…
Poa secunda J. Presl. s.l. is a morphologically highly variable bunchgrass that is a valuable forage species in western North America. There has been much controversy as to whethe…
Vernonia subgenus Austrovernonia, a new subgenus from South America (Compositae, Vernonieae, Vernoniinae)
Vernonia incana Less. and V. echioides Less. are two semi-aquatic species from southern South American that are referred to as “the semi-aquatic Vernonia of South America” and the…
Phylogeny, infrageneric classification and species delimitation in the Malagasy Impatiens (Balsaminaceae)
The species-rich genus Impatiens (Balsaminaceae) is represented in Madagascar by no less than 260 species. We conducted molecular phylogenetic analyses of the Malagasy Impatiens b…
Begonia yenyeniae (Begoniaceae), a new species from Endau Rompin National Park, Johor, Malaysia
Begonia yenyeniae is a new species of horticultural value known only from the Endau Rompin National Park, Peninsular Malaysia. It is similar to Begonia rajah with which it had pre…
A Linnaeus NG interactive key to the species of Glomera (Orchidaceae, Coelogyninae) from Southeast Asia
We present a multilingual interactive key available online (http://glomera.linnaeus.naturalis.nl) that can be used on any web browser without the need for installing additional so…
Molecular phylogenetic data and seed coat anatomy resolve the generic position of some critical Chenopodioideae (Chenop…
The former Chenopodium subgen. Blitum and the genus Monolepis (Chenopodioideae) are characterised in part by a reduced (0–4) number of perianth segments. According to recent molec…
Synthetic cartography for mapping biodiversity in the Mediterranean region: Sicily as a case study
This paper proposes a new hierarchical land classification system for the mapping of species distribution at national or regional scales. Our integrative framework incorporates tw…
Phlegmariurus vanuatuensis (Huperzioideae, Lycopodiaceae) a new species from Vanuatu, re-circumscription of P. nummular…
Phlegmariurus vanuatuensis A.R.Field is described as a new species for plants endemic to the islands of Vanuatu that were previously identified with P. nummulariifolius (Blume) Ch…
Phryna hamzaoglui Koç & Budak (Caryophyllaceae), a new species from Central Anatolia, Turkey
A new species Phryna hamzaoglui was discovered in Hekimhan (Turkey, Malatya province) where it grows on hillsides. The P. hamzaoglui and P. ortegioides were compared with each oth…
A series of unfortunate events: the forgotten botanist and the misattribution of a type collection
In 1777, Spain sent The Royal Expedition to Peru and Chile, commonly referred to as the “Ruiz and Pavón Expedition”, to document the flora of this richly diverse part of its colon…
Togo National Herbarium database
This article describes the herbarium database of the University of Lomé. The database provides a good representation of the current knowledge of the flora of Togo. The herbarium o…
Taxonomic status of Populus wulianensis and P. ningshanica (Salicaceae)
Species delimitation in the genus Populus is particularly challenging due to high levels of intraspecific polymorphism as well as frequent interspecific hybridisation and introgre…
Nomenclatural review of Acalypha (Euphorbiaceae) of the Western Indian Ocean Region (Madagascar, the Comoros Archipelag…
This work presents a critical nomenclatural review of the Acalypha species of the Western Indian Ocean Region (Madagascar, the Comoros Archipelago, the Mascarene Islands and the S…
Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and syn…
A total evidence phylogeny for Pontederiaceae is herein presented based on new morphological and previously published molecular data. Our results led us to re-circumscribe Pontede…
A new black nightshade (Morelloid clade, Solanum, Solanaceae) from the caatinga biome of north-eastern Brazil with a ke…
Solanum caatingae sp. nov. is described from the arid caatinga biome of north-eastern Brazil. It is known from only a few specimens, but these were found amongst the many sheets o…
Evidence from checklists for a Holarctic (circumboreal) kingdom of diatoms
Published checklists of freshwater diatoms that represent the American Northwest, Laurentian Great Lakes, Germany and the South Polar Region were compared systematically and the n…
A revision of Dissochaeta (Melastomataceae, Dissochaeteae)
Dissochaeta is a plant genus of woody climbers, classified in the tribe Dissochaeteae (Melastomataceae). The taxonomic history of the genus is complicated and includes some allied…
Checklist of gypsophilous vascular flora in Italy
Our understanding of the richness and uniqueness of the flora growing on gypsum substrates in Italy has grown significantly since the 19th century and, even today, new plant speci…
Odontochilus putaoensis (Cranichideae, Orchidaceae), a new species from Myanmar
Odontochilus putaoensis, a new species of Orchidaceae, is described and illustrated from Putao Township, Kachin State, Myanmar. Odontochilus putaoensis is close to O. duplex, but …
The medicinal plants of Myanmar
A comprehensive compilation is provided of the medicinal plants of the Southeast Asian country of Myanmar (formerly Burma). This contribution, containing 123 families, 367 genera,…
Wandering throughout South America: Taxonomic revision of Tradescantia subg. Austrotradescantia (D.R.Hunt) M.Pell. (Com…
I present the first taxonomic revision for T. subg. Austrotradescantia, based on extensive field, cultivation and herbaria studies. I accept 13 species, three of them (i.e. T. atl…
New insights into the taxonomy of tribe Euclidieae (Brassicaceae), evidence from nrITS sequence data
As currently delimitated, the species-rich mustard tribe Euclidieae DC. (Brassicaceae) comprises 28 genera and 152 species distributed primarily in Asia. To date, no tribe-wide co…
Taxonomic review of Ceratozamia (Zamiaceae) in the Sierra Madre Oriental, Mexico
The genus Ceratozamia is revised for the Sierra Madre Oriental in Mexico. This region is one of the biogeographic areas with the greatest diversity of species in this genus. These…
Hemiboea suiyangensis (Gesneriaceae): a new species from Guizhou, China
The limestone areas in south China are a major biodiversity hotspot for terrestrial biomes. Hemiboea, with 34 species and 5 varieties, mainly distributed in south China, is one of…
Anemonastrum tenuicaule and A. antucense (Ranunculaceae), new combinations for a New Zealand endemic species and its So…
A rational taxonomic circumscription of genera in tribe Anemoneae (Ranunculaceae) is briefly discussed. It is concluded that, in view of the morphological diversity of the group a…
Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands
The taxonomic positions and phylogenetic relationships of six Pavetteae species endemic to Madagascar were tested with a phylogenetic study of the Afro-Madagascan representatives …
Climbers of the Estação Ecológica de Assis, State of São Paulo, Brazil: floristics and identification keys
Climbers are an important life form in the understory and canopy of tropical forests. They are characterised by constant root connection to the ground and use of other species, ma…
Coelogyne victoria-reginae (Orchidaceae, Epidendroideae, Arethuseae), a new species from Chin State, Myanmar
Coelogyne victoria-reginae, a new species of section Proliferae, from Natma Taung (Mt.Victoria) National Park, Chin State, Myanmar, is described and illustrated. It is morphologic…
Lysimachia tianmaensis (Primulaceae), a new species from Anhui, China
A new species of Lysimachia (Primulaceae), Lysimachia tianmaensis K. Liu, S.B. Zhou & Ying Wang sp. nov., is described and illustrated from Jinzhai County, Anhui, China. It is end…
Deciphering the sexual diploid members of the Boechera suffrutescens complex (Brassicaceae, Boechereae)
Boechera is a model genus that is of particular interest for understanding apomixis due to the presence of numerous apomictic diploid lineages that are tightly correlated with hyb…
Recognition of the genus Thaumatophyllum Schott − formerly Philodendron subg. Meconostigma (Araceae) − based on molecul…
Philodendron subgenus Meconostigma has been a well-circumscribed group since 1829. Members of this group are easily distinguished by diagnostic morphological characters as well as…
The hidden Heuchera: How science Twitter uncovered a globally imperiled species in Pennsylvania, USA
The genus Heuchera is recognized as one of the most diverse endemic radiations of Saxifragaceae in North America, yet species delimitation and geographic distribution within the g…
Two new Phlegmariurus species (Lycopodiaceae) and one new combination from Peninsular Malaysia
Two new species, Phlegmariurus iminii Kiew (Lycopodiaceae) from limestone karst and P. monticola Kiew from montane habitats, are described from Peninsular Malaysia and a new combi…
Comparative anatomical studies of some Teucrium sect. Teucrium species: Teucrium alyssifolium Stapf, Teucrium brevifoli…
Teucrium alyssifolium Stapf (endemic), Teucrium pestalozzae Boiss. (endemic) and Teucrium brevifolium Schreb. are three closely related taxa in Teucrium sect. Teucrium. The obtain…
Taxonomic studies of Glochidion (Phyllanthaceae) from the Indo-China Peninsula (I): G. shanense, a new species from Mya…
Based on morphological studies performed on live plants in the field and specimens deposited in herbaria, a new species, Glochidion shanense Gang Yao & Shixiao Luo (Phyllantheae, …
Home at last III: Transferring Uechtritzia and Asian Gerbera species into Oreoseris (Compositae, Mutisieae)
Recently the Asian Gerbera species were shown to form a clade that was not the sister group of the African Gerbera. In this study, the position of the Asian Gerbera species was fu…
A new lectotype for Passiflora laurifolia L.
From the "Description des plantes d'Amérique" by Plumier, in 1693, to the "Species Plantarum" by Linnaeus in 1753, several dubious synonymies of Passiflora laurifolia L. were prop…
Home at Last II: Gerbera hieracioides (Kunth) Zardini (Mutisieae, Asteraceae) is really a Chaptalia
Gerbera hieracioides (Kunth) Zardini of the Gerbera-complex (Mutisieae, Asteraceae/Compositae) is distributed in Ecuador and Peru. This perennial herb was first named as Onoseris …
Two new species and two new records of Artabotrys (Annonaceae) from Thailand
Two new species of Artabotrys are described from Thailand. Artabotrys tanaosriensis J.Chen, Chalermglin & R.M.K.Saunders, sp. nov., is similar to A. oblanceolatus Craib but differ…
Polyphyly of Lichen-cryptic Dagger Moths: synonymy of Agriopodes Hampson and description of a new basal acronictine gen…
The taxonomic composition and systematic position of Agriopodes Hampson is examined through an integrated approach using adult and larval morphology, biology, and molecular sequen…
The type-material of Arctiinae (Lepidoptera, Erebidae) described by Burmeister and Berg in the collection of the Museo …
Carlos G. Burmeister and Carlos Berg were among the most important and influential naturalists and zoologists in Argentina and South America and described 241 species and 34 gener…
Four new species of Symmerista Hübner, 1816 (Notodontidae, Nystaleinae) from Costa Rica
The genus Symmerista Hübner (Notodontidae, Nystaleinae) is reviewed for Costa Rica, based on 49 wild-caught specimens. Four species are newly described: Symmerista luisdiegogomezi…
Avibase – a database system for managing and organizing taxonomic concepts
Scientific names of biological entities offer an imperfect resolution of the concepts that they are intended to represent. Often they are labels applied to entities ranging from e…
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