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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…

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…

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 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…

Neotypes are designated for five names in Kaempferia (Zingiberaceae) from Lao PDR, namely K. attapeuensis Picheans. & Koonterm, K. champasakensis Picheans. & Koonterm, K. gigantip…

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…

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…

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, …

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…

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…

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 Fée from Vietnam, C. japonica and C. procera, are presented. In addition, a key to recognising the species of Coniogramme in Vietnam …

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…

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.…

Based on morphological and phylogenetic evidence, a new genus of Melastomataceae (Melastomateae), Nothodissotis Veranso-Libalah & G.Kadereit, gen. nov., is described from Atlantic…

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 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…

Morphological variations, particularly flower colour, could be considered as an evolutionarily and ornamentally significant taxonomic criterion for Epimedium. Our extensive field …

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…

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…

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…

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…

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, 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…

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 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 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…

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…

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) is described as a new species from Hon Ba Nature Reserve in southern Vietnam. This species is morphologically similar to T. chant…

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…

Greenwayodendron (Annonaceae) is a tropical African genus of trees occurring mainly in rain forests. Until recently, Greenwayodendron contained only two species: Greenwayodendron …

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 importance of mountains for plant diversity and richness is underestimated, particularly when transition zones between different bioclimates are present along altitudinal grad…

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 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…

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 …

A new species of the mycoheterotrophic genus Thismia Griff. (Thismiaceae), Thismia sumatrana Suetsugu & Tsukaya, from West Sumatra, Indonesia, is described, based on a rehydrated …

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…

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…

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…

We describe a new species of spiny Solanum (Solanum subg. Leptostemonum), endemic to the Brazilian Atlantic Forest and associated with granitic outcrops (inselbergs or sugar loaf …

This study describes and illustrates Chrysosplenium ramosissimum, a new plant species from Mt. Seonjaryeong, located in the central region of the Korean Peninsula. The species is …

Eriolaena rulkensii Dorr, sp. nov. is described and illustrated. This attractive shrub is endemic to coastal Mozambique. The new species has apically winged seeds, which place it …

Raphia (Arecaceae, Calamoideae) is the most diverse genus of African palms with around 20 species. Two new species from Cameroon and Gabon, Raphia gabonica Mogue, Sonké & Couvreur…

Andeimalva peruviana Dorr & C.Romero, sp. nov., the third Peruvian endemic in a small genus of five species, is described and illustrated from a single collection made at high ele…

Hiptage pauciflora Y.H. Tan & Bin Yang and Hiptage ferruginea Y.H. Tan & Bin Yang, two new species of Malpighiaceae from Yunnan, South-western China are here described and illustr…

Hedychium viridibracteatum X.Hu, a new species from Guangxi Zhuang Autonomous Region, South China, is described and illustrated. Hedychium viridibracteatum X.Hu is included in the…

A single-celled green alga Coccomyxa greatwallensis Shunan Cao & Qiming Zhou, sp. nov., isolated from a specimen of Antarctic lichen Psoroma hypnorum (Vahl) Gray, is described and…

A new species, Acropogon horarius Gâteblé & Munzinger, sp. nov. (Malvaceae, Sterculioideae), is described from New Caledonia. It is known only from two very small subpopulations i…