PhytoKeys
1332 published works on OPTIMAP from this source.
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1332 works
Showing 951 to 1000 of 1332 works
Twelve new and exciting Annonaceae from the Neotropics
As a result of concerted efforts of the community of Annonaceae taxonomists, increasingly detailed knowledge of the diversity of the Neotropical genera has been documented. With t…
Return Verdesmum menglaense to the genus Hylodesmum (Fabaceae) based on morphological and molecular evidence
Verdesmum menglaense (C. Chen & X. J. Cui) H. Ohashi & K. Ohashi is a rare species in the tribe Desmodieae (Fabaceae) from Southwest China. The morphological observation shows tha…
A new species of dragon’s blood Croton (Euphorbiaceae) from Serra dos Órgãos (Rio de Janeiro, Brazil)
Croton rizzinii Farias & Riina, sp. nov. is a new species from Serra dos Órgãos National Park in the Atlantic Rain Forest domain (Rio de Janeiro state, Brazil). It is known from t…
Impatiens jenjittikuliae (Balsaminaceae), a new species from Thailand
Impatiens jenjittikuliae Ruchis. & Suksathan, a new species from a limestone area in Thasongyang District, Tak Province, Northern Thailand, is described and illustrated. This ende…
Insights on the systematics and morphology of Humiriaceae (Malpighiales): androecial and extrafloral nectary variation,…
Humiriaceae have had little recent comparative morphological study except for their distinctive fruits. We surveyed the diversity of stamen structures in the family with…
Dysosma villosa (Berberidaceae), a new species from Guizhou, Southwestern China
A new species, Dysosma villosa Z.W.Wang & H.C.Xi, is described and illustrated based on collections from the Yueliang Mountains in Congjiang County of Guizhou, Southwestern China.…
Solanum plastisexum, an enigmatic new bush tomato from the Australian Monsoon Tropics exhibiting breeding system fluidi…
A bush tomato that has evaded classification by solanologists for decades has been identified and is described as a new species belonging to the Australian “Solanum dioicum group”…
Zeylanidium manasiae, a new species of Podostemaceae based on molecular and morphological data from Kerala, India
We present the description of Zeylanidium manasiae (Podostemaceae), a new species from Kerala, India, which is proposed based on molecular, macro- and micromorphological data. Thi…
Oreocharis odontopetala, a new species of Gesneriaceae from Guizhou, China
A new species, Oreocharis odontopetala Q.Fu & Y.Q.Wang from Guizhou Province in southwest China, is described and illustrated, based on morphological comparison with existing spec…
Justicia thailandica, a new species of Acanthaceae from Thailand
A new species of Justicia (Acanthaceae), J. thailandica, is described and illustrated from Thailand. The new species belongs to Justicia sect. Harnieria and is similar to J. quadr…
A new species of Microlicia (Melastomataceae): first record of the genus for Colombia
Microlicia (Melastomataceae) is a Neotropical genus nearly restricted to southeastern Brazil, and the Guiana Shield in Venezuela, with a few species in some places in the Andes of…
Páramo Calamagrostis s.l. (Poaceae): An updated list and key to the species known or likely to occur in páramos of NW S…
Calamagrostis (syn. Deyeuxia), as traditionally circumscribed, is one of the most speciose genera from páramo grasslands of northwest South America and southern Central America an…
Hemiboea albiflora, a new species of Gesneriaceae from Guizhou, China
Hemiboea albiflora X.G.Xiang, Z.Y.Guo & Z.W.Wu, sp. nov., a new species of Gesneriaceae from Guizhou, China, is described and illustrated. This species was previously listed infor…
Typification of names in Kaempferia (Zingiberaceae) in the flora of Cambodia, Laos and Vietnam
Neotypes are designated for five names in Kaempferia (Zingiberaceae) from Lao PDR, namely K. attapeuensis Picheans. & Koonterm, K. champasakensis Picheans. & Koonterm, K. gigantip…
Additional contributions to taxonomy, nomenclature and biogeography of the Turkish Crataegus (Rosaceae) taxa
Crataegus azarolus L. has a wide distribution pattern from the western Mediterranean coasts to the eastern parts of Iran with several varieties adapted to local climatic condition…
A checklist of rheophytes of Cameroon
Rivers in Cameroon were surveyed to collect and document rheophytic plants. Rheophytes are the dominant aquatic macrophytes in tropical river systems, where they are adapted to ex…
Asclepias speciosa (Apocynaceae, Asclepiadoideae): a rare or unrecognized alien species in Europe?
Studies on populations of Asclepias syriaca L. in Lithuania revealed the occurrence of a new alien plant species, the North American native Asclepias speciosa Torr. (Apocynaceae, …
A new species of perennial Bromus (Bromeae, Poaceae) from the Iberian Peninsula
During a survey of the genus Bromus for the ongoing Flora Iberica, B. picoeuropeanus sp. nov., a new orophilous species of perennial Bromus from Picos de Europa National Park, was…
An annotated checklist of vascular plants of Cherangani hills, Western Kenya
Cherangani hills, located in Western Kenya, comprises of 12 forest blocks, maintaining great plant diversity. However, little attention to plant diversity studies has been paid to…
Allium albanicum (Amaryllidaceae), a new species from Balkans and its relationships with A. meteoricum Heldr. & Hausskn…
A new species, Allium albanicum, is described and illustrated from Albania (Balkan Peninsula). It grows on serpentines or limestone in open rocky stands with a scattered distribut…
Two new records of the fern genus Coniogramme (Pteridaceae) from Vietnam
Two new records of the fern genus Coniogramme Fée from Vietnam, C. japonica and C. procera, are presented. In addition, a key to recognising the species of Coniogramme in Vietnam …
Sorbus lushanensis, a new species of Rosaceae from China
Sorbus lushanensis Xin Chen & Jing Qiu, sp. n. (Rosaceae), a new simple-leaved species belonging to Sorbus subg. Aria sect. Alnifoliae, is described from Anhui and Jiangxi provinc…
The genus Indigofera (Leguminosae) in New Caledonia: two new species and a key for the species
Indigofera monieriana M.Pignal & L.P.Queiroz, sp. nov. and Indigofera dumbeana M.Pignal & L.P.Queiroz, sp. nov., two new species from New Caledonia, are described and illustrated.…
Nothodissotis (Melastomataceae), a new genus from Atlantic Central Africa, including the new species N. alenensis from …
Based on morphological and phylogenetic evidence, a new genus of Melastomataceae (Melastomateae), Nothodissotis Veranso-Libalah & G.Kadereit, gen. nov., is described from Atlantic…
Selaginella dianzhongensis (Selaginellaceae), a new spikemoss from China
A new species of spikemoss from Yunnan Province of China, Selaginella dianzhongensis, is described and illustrated based on evidence from gross morphology, micromorphology and mol…
Solanum medusae (Solanaceae), a new wolf-fruit from Brazil, and a key to the extra-Amazonian Brazilian Androceras/Crini…
Solanum medusae sp. nov. is described from the Cerrado biome in the Serra da Canastra region, southwestern Minas Gerais State, Brazil. The new species is morphologically similar t…
The taxonomic relevance of flower colour for Epimedium (Berberidaceae), with morphological and nomenclatural notes for …
Morphological variations, particularly flower colour, could be considered as an evolutionarily and ornamentally significant taxonomic criterion for Epimedium. Our extensive field …
Cirsium tatakaense (Compositae), a new species from Taiwan
A new species of Cirsium, Cirsium tatakaense Y.H.Tseng & C.Y.Chang, from central-southern Taiwan is described and illustrated. This species is similar to C. kawakamii Hayata in le…
Dacar Cas/Somali Red Aloe: a new species of Aloe (Asphodelaceae) from Somaliland
A new species of Aloe (Asphodelaceae) is described from Somaliland. It differs from other species in forming large clumps and in having sap that is initially yellow but quickly tu…
Hedychium ziroense (Zingiberaceae), a new species of ginger lily from Northeast India
We describe Hedychium ziroense sp. nov. from Northeast India (NE India) which was discovered during one of our recent botanical explorations in Arunachal Pradesh. We provide detai…
Senyumia granitica (Gesneriaceae) from Johor, Malaysia, the second species of Senyumia
The genus Senyumia was previously known from a single species, S. minutiflora (Ridl.) Kiew, A.Weber & B.L.Burtt, from a limestone karst, Gunung Senyum, in Pahang, Malaysia. Senyum…
Taxonomic revision of Mcvaughia W.R.Anderson (Malpighiaceae): notes on vegetative and reproductive anatomy and the desc…
A taxonomic revision of Mcvaughia is presented, including the description of a new species from the state of Piauí, Brazil, and notes on wood, secondary phloem, leaf, and floral m…
Spiradiclis karstana (Rubiaceae), a new species from Yunnan, China
Spiradiclis karstana, a new species of Spiradiclis (Rubiaceae) collected from Yunnan, China, is described for the first time. It is morphologically close to S. jingxiensis, but di…
Taxonomic revision of Chenopodiaceae in Himalaya and Tibet
The composition of many Chenopodiaceae genera in different parts of Himalaya and Tibet has been insufficiently known or contradictory. A revision of the family in Himalaya includi…
Trollius austrosibiricus (Ranunculaceae), a new species from South Siberia
Trollius austrosibiricus Erst & Luferov, sp. nov., a new species from Russian South Siberia is described and illustrated. This new species is endemic to Western and Central Siberi…
Camelina neglecta (Brassicaceae, Camelineae), a new diploid species from Europe
Camelina neglecta is described as a new diploid species and its relationship to the other diploids of the genus and to the somewhat superficially similar tetraploid C. rumelica an…
Evolutionary relationships and taxonomy of Microtea (Microteaceae), a basal lineage in the core Caryophyllales
The basal position of the small American genus Microtea within the core Caryophyllales was suggested only recently in accordance with molecular phylogeny. However, the specific re…
Revision of Muhlenbergia (Poaceae, Chloridoideae, Cynodonteae, Muhlenbergiinae) in Peru: classification, phylogeny, and…
A taxonomic treatment, phylogeny based on analysis of six DNA sequence markers (ITS, ndhA intron, rpl32-trnL, rps3, rps16 intron and rps16-trnK) and classification of Muhlenbergia…
Tacca khanhhoaensis V.S. Dang & Vuong (Taccaceae), a new species from southern Vietnam
Tacca khanhhoaensis V.S. Dang & Vuong (Taccaceae) is described as a new species from Hon Ba Nature Reserve in southern Vietnam. This species is morphologically similar to T. chant…
New species of Paullinia (Sapindaceae) from continental tropical America
Six new species are described in the large Neotropical genus Paullinia (Sapindaceae), P. cidii, P. decorticans, P. fruticosa, P. hondurensis; P. martinellii and P. wurdackii. In a…
Taxonomic revision of the African genus Greenwayodendron (Annonaceae)
Greenwayodendron (Annonaceae) is a tropical African genus of trees occurring mainly in rain forests. Until recently, Greenwayodendron contained only two species: Greenwayodendron …
Radiation of members of the Soroseris hookeriana complex (Asteraceae) on the Qinghai-Tibetan Plateau and their proposed…
The existence of intermediate types is a major obstacle that can hinder the circumscription of species. Elucidating the mechanism responsible for intermediate types is essential f…
The indigenous vascular flora of the forest domain of Anela (Sardinia, Italy)
The importance of mountains for plant diversity and richness is underestimated, particularly when transition zones between different bioclimates are present along altitudinal grad…
Medinilla theresae (Melastomataceae), a new species from ultramafic soils in the Philippines
A new species, Medinilla theresae Fernando, from ultramafic soils on Dinagat and Mindanao Islands, Philippines is described and illustrated. The species is characterized by its te…
A new genus of Compositae (Eupatorieae, Piqueriinae) from Peru, named Centenaria to honour the 100 th anniversary of th…
A little herb from central Peru is recognised as a new species of a new genus. Centenaria rupacquiana belongs to the tribe Eupatorieae, subtribe Piqueriinae. It has asymmetrical c…
Diatoms from Wrangell-St. Elias National Park, Alaska, USA
As a contribution to our knowledge of diatom biodiversity and biogeography in the United States, high resolution light microscope images are provided for 139 diatom taxa recorded …
Thismia sumatrana (Thismiaceae), a new species from West Sumatra, Indonesia, with discussions on the taxonomic identity…
A new species of the mycoheterotrophic genus Thismia Griff. (Thismiaceae), Thismia sumatrana Suetsugu & Tsukaya, from West Sumatra, Indonesia, is described, based on a rehydrated …
The Cuito catchment of the Okavango system: a vascular plant checklist for the Angolan headwaters
This paper aims to provide a baseline for conservation planning by documenting patterns of plant diversity and vegetation in the upper catchment of the Cuito River. 417 species ar…
A taxonomic revision of the Neotropical genus Cremastosperma (Annonaceae), including five new species
We present a taxonomic revision of Cremastosperma, a genus of Neotropical Annonaceae occurring in lowland to premontane wet forest, mostly in areas surrounding the Andean mountain…
Haplophyllum ermenekense (Rutaceae), a new species from Turkey
A new species of Haplophyllum, Haplophyllum ermenekense (Rutaceae) is described and illustrated in line drawing. It grows on stony slopes of Ermenek town, Karaman province, in sou…