PhytoKeys
1332 published works on OPTIMAP from this source.
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Known totals: OpenAlex: 2133 · OAI-PMH: 2115
1332 works
Showing 1251 to 1300 of 1332 works
Revision of the African genus Uvariastrum (Annonaceae)
The genus Uvariastrum (Annonaceae) is restricted to continental Africa and is characterized by sepals with folded margins, few carpels and numerous stamens. The genus is mainly fo…
A new species of Espeletiopsis (Millerieae, Asteraceae) from Colombia
A new species of Espeletiopsis was found in two small páramos of Norte de Santander, Colombia. The species is named Espeletiopsis diazii honoring the contributions of Santiago Día…
Lucky morning glory, Calystegia felix (Convolvulaceae): a new species from Southern California, with notes on the histo…
A new morning glory, Calystegia felix Provance & A.C. Sanders sp. nov. (Convolvulaceae), is described from the Los Angeles, San Gabriel, and Santa Ana River basins. Historical col…
Distribution models and species discovery: the story of a new Solanum species from the Peruvian Andes
A new species of Solanum sect. Solanum from Peru is described here. Solanum pseudoamericanum Särkinen, Gonzáles & S.Knapp sp. nov. is a member of the Morelloid clade of Solanum, a…
Whatever happened to Bishopanthus (Compositae, Liabeae)?
The enigmatic monospecific Bishopanthus of the tribe Liabeae (Compostiae/Asteraceae) has never been fully understood. It has not been possible to examine it in detail since it was…
Revision of Cyrtandra (Gesneriaceae) in the Marquesas Islands
During the preparation of the Vascular Flora of the Marquesas Islands three new species of Cyrtandra (Gesneriaceae) have come to light and are described herein: C. uapouensis W. L…
A new cryptically dioecious species of bush tomato (Solanum) from the Northern Territory, Australia
A new species of dioecious Solanum from the Australian “Dioicum Complex” of Solanum subgenus Leptostemonum is described. Solanum cowiei Martine sp. nov., is allied with other memb…
A synopsis of the New World species of Drypetes section Drypetes (Putranjivaceae) with asymmetrical fruits, including d…
A synopsis of the New World species of Drypetes (Putranjivaceae) with asymmetrical drupes is presented. The group consists of three species: D. alba, with two varieties, from the …
Lejeunea hodgsoniana, a newly described, long recognised Lejeunea (Jungermanniopsida, Lejeuneaceae) from lowland coasta…
Lejeunea hodgsoniana Grolle ex R.J.Lewington, P.Beveridge & M.A.M.Renner sp. nov., A taxon originally recognised by Riclef Grolle in 1980, but not described, known from a number o…
A new species of Coespeletia (Asteraceae, Millerieae) from Venezuela
A new species of Coespeletia from the páramos of Mérida (Venezuela) is described here. This species, named Coespeletia palustris, is found in a few marshy areas of the páramo. It …
Integrative taxonomy resolves the cryptic and pseudo-cryptic Radula buccinifera complex (Porellales, Jungermanniopsida)…
Molecular data from three chloroplast markers resolve individuals attributable to Radula buccinifera in six lineages belonging to two subgenera, indicating the species is polyphyl…
A new species from Thailand and Burma, Dracaena kaweesakii Wilkin & Suksathan (Asparagaceae subfamily Nolinoideae)
A morphologically distinct element of the group of Dracaena species from Thailand and Burma with undifferentiated leaf sheaths, no leaf blade central costa, free tepals and free t…
A new species of Licania (Chrysobalanaceae) from Cordillera del Cóndor, Ecuador
A new mid altitude species of the predominantly lowland genus Licania, L. condoriensis from Ecuador is described and illustrated.
A new species of Bauhinia L. (Caesalpinioideae, Leguminosae) from Nakhon Phanom Province, Thailand
A new liana species of the subfamily Caesalpinioideae (Leguminosae), namely Bauhinia nakhonphanomensis, collected from the Phulangkha National Park, Nakhon Pranom Province, Thaila…
Circumscription and lectotypification of Hedychium villosum and its variety H. villosum var. tenuiflorum (Zingiberaceae)
The nomenclatural confusion between the Indian gingers Hedychium villosum Wallich and its variety H. villosum var. tenuiflorum (Wall. ex Voigt) Wall. ex Baker is discussed. Both t…
Guzmania panamensis (Bromeliaceae) – a new species from Talamanca Mountain in Veraguas province, Western Panama
Guzmania panamensis (Bromeliaceae), a new species so far endemic to Veraguas province, Western Panama, is described and illustrated. The new species is recognized due to its pedun…
New Lepidium (Brassicaceae) from New Zealand
A revision of the New Zealand endemic Lepidium oleraceum and allied species is presented. Sixteen species are recognised, 10 of these are new. The new species are segregated on th…
The Flora of Chad: a checklist and brief analysis
A checklist of the flora of Chad has been compiled by the authors, based on literature, on-line data-bases, herbarium collections and land surveys (1998-2011). It counts 2,460 rec…
A revision of the Dulcamaroid Clade of Solanum L. (Solanaceae)
The Dulcamaroid clade of Solanum contains 45 species of mostly vining or weakly scandent species, including the common circumboreal weed Solanum dulcamara L. The group comprises m…
Reinterpretation of the nomenclatural type of Pseudobombax heteromorphum (Malvaceae, Bombacoideae) reveals an overlooke…
In the course of a taxonomic revision of Pseudobombax Dugand, one of us (JGCS) frequently has observed herbarium specimens of Bombacoideae that comprise a mixture of different Ang…
A synopsis of Harperocallis (Tofieldiaceae, Alismatales) with ten new combinations
Ten new combinations from Asagraea, Isidrogaliva, and Tofieldia are proposed in the previously monospecific genus Harperocallis (Tofieldiaceae, Alismatales). As circumscribed here…
Allium formosum Sennikov & Lazkov (Amaryllidaceae), a new species from Kyrgyzstan
Allium formosum Sennikov & Lazkov sp. nov. is described as new to science and illustrated. This species is the second member of A. sect. Spathulata F.O.Khass. & R.M.Fritsch, being…
Pyropia plicata sp. nov. (Bangiales, Rhodophyta): naming a common intertidal alga from New Zealand
A commonly found red alga of the upper intertidal zone of New Zealand rocky coasts is described for the first time as Pyropia plicata sp. nov. This species has been incorrectly kn…
Axonopus graniticola, a new species of A. ser. Suffulti (Poaceae, Panicoideae, Paspaleae) from Minas Gerais, Brazil
A new species of Axonopus ser. Suffulti from Minas Gerais, Brazil, is described and illustrated. Comparison with morphologically related species, as well as comments on the ecolog…
A revised circumscription for the Blakeeae (Melastomataceae) with associated nomenclatural adjustments
Systematic investigations and phylogenetic analyses of the Blakeeae (Melastomataceae) have indicated that Topobea should be synonymized under Blakea, and Huilaea under Chalybea. P…
Murdannia saddlepeakensis (Commelinaceae) – a new species from Andaman and Nicobar Islands, India
Murdannia saddlepeakense (Commelinaceae), a new species from the Andaman and Nicobar Islands, India, is described and illustrated. The new species is remarkable for its narrowly l…
Ridleyandra iminii (Gesneriaceae), a new species from Peninsular Malaysia
A new endemic species of Ridleyandra (Gesneriaceae), R. iminii Siti-Munirah from Peninsular Malaysia is described and illustrated. Among Ridleyandra species, it is the only one wi…
Three new species of Pilea (Urticaceae) from limestone karst in China
Three hitherto undescribed species of Pilea (Urticaceae) from limestone karst in China are described and illustrated. Affinities of the species are discussed and Global Species Co…
Five new species of Rhodamnia (Myrtaceae, Myrteae) from New Guinea
Five new species of Rhodamnia are proposed for New Guinea, including R. asekiensis, R. daymanensis, R. makumak, R. taratot, and R. waigeoensis. Rhodamnia sharpeana, known previous…
Codonoboea personatiflora (Gesneriaceae), a new species from Peninsular Malaysia
Codonoboea personatiflora Kiew & Y.Y.Sam, sp. nov., is described from lowland forest in the foothills in Terengganu, Peninsular Malaysia. It is unique in the genus in its personat…
Melothria domingensis (Cucurbitaceae), an endangered Caribbean endemic, is a Cayaponia
The Neotropical genus Melothria (Benincaseae, Cucurbitaceae) is a small group of yellow- or white-flowered climbers with small to medium-sized fruits. In 1899, Alfred Cogniaux des…
Diatoms from Brazil: the taxa recorded by Christian Gottfried Ehrenberg
The flora of diatoms from Brazil has been studied by several authors from the beginning of the 19th up to now. Some of the old lists and descriptions are unknown or have been igno…
Costus loangensis, an exciting new species from Gabon, Africa
A new species of spiral ginger (Costus: Costaceae) from Gabon, Africa is described. Costus loangensis H. Maas & Maas is found in the coastal region on white sand soils under a tro…
A new species of Solanum sect. Acanthophora (Solanaceae) from Argentina and Brazil
A new species of Solanum belonging to section Acanthophora (subgenus Leptostemonum) from Argentina and Brazil is described. Solanum neei Chiarini & L.A.Mentz, sp. nov. is found in…
A new combination in Lapanthus (Bromeliaceae)
A new combination, Lapanthus vidaliorum (O.B.C. Ribeiro & C.C. Paula) Louzada & Wand. is proposed for Orthophytum vidaliorum O. Ribeiro & C.C. Paula. In addition notes on taxonomy…
Contribution to the taxonomy of Garcinia (Clusiaceae) in Africa, including two new species from Gabon and a key to the …
Garcinia has some 260 species and is often regarded as a genus with a difficult taxonomy. No recent treatment is available for the botanically rich Lower Guinea phytogeographical …
Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) from the Guiana Shield and Amazonian …
Two new species in the Matelea stenopetala complex (Apocynaceae, Asclepiadoideae) are described from the Guiana Shield and Amazonian Brazil: Matelea brevistipitata Krings & Morill…
Psoralea karooensis (Psoraleeae, Fabaceae): a new species from the Klein Karoo region of South Africa
A new species of Psoralea is described. Psoralea karooensis C.H. Stirt., Muasya & Vlok is endemic to mountain streams in the Klein Karoo region of the Western Cape Province, South…
A new tetraploid species of Solanum L. sect. Solanum (Solanaceae) from Tanzania
Solanum umalilaense Manoko sp. nov. (Solanaceae) is described from the Umalila area, in the southern highlands of Tanzania. Its novelty is supported with both morphological and AF…
Two new species of forget-me-nots (Myosotis, Boraginaceae) from New Zealand
Two new species of forget-me-nots, Myosotis chaffeyorum C.A.Lehnebach sp. nov. and Myosotis mooreana C.A.Lehnebach sp. nov. are described and illustrated. These species are endemi…
A nomenclator for the frailejones (Espeletiinae Cuatrec., Asteraceae)
The páramos and high Andean forests of the tropical Andes are largely dominated by frailejones (Espeletiinae Cuatrec., Asteraceae). These plants are ecologically and culturally es…
Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two n…
A revision and key to the 23 species and eight subspecies of Poa (including Dissanthelium) known to occur in Mexico is provided. All voucher specimens seen are cited for accepted …
Phylogenetic analyses place the Australian monotypic Revwattsia in Dryopteris (Dryopteridaceae)
Revwattsia fragilis (Watts) D.L. Jones (Dryopteridaceae), originally described as a Polystichum Roth by the pioneer Australian botanist Reverend W.W. Watts in 1914, is a rare epip…
Cuatrecasanthus (Vernonieae, Compositae): A revision of a north-central Andean genus
Cuatrecasanthus is native to Ecuador and Peru and although several unusual characters define the genus, such as single flowered heads and corolla throat (limb) divided to the base…
Mimulus peregrinus (Phrymaceae): A new British allopolyploid species
Polyploidization plays an important role in species formation as chromosome doubling results in strong reproductive isolation between derivative and parental taxa. In this note I …
Two new species of Gingers (Zingiberaceae) from Myanmar
Two new species of gingers (Zingiberaceae), Globba sherwoodiana W.J. Kress & V. Gowda sp. nov., and Curcuma arracanensis W.J. Kress & V. Gowda sp. nov., from Myanmar are described…
A new species of Camchaya (Asteraceae, Vernonieae) from Thailand
Camchaya thailandica Bunwong, Chantar. & S.C.Keeley, sp. nov. from Phu Phrabat Historical Park, Udon Thani, Thailand is described as a new species. Plant of this new species are s…
A new species of Miconia (Melastomataceae, Miconieae) from the Ecuador-Peru border
Miconia machinazana C.Ulloa & D.A. Neill, sp. nov., a new species of Melastomataceae from the Ecuador-Peru border is described and illustrated. It is characterized by the narrow, …
Tetrameranthus (Annonaceae) revisited including a new species
The taxonomic revision of the infrequently collected genus Tetrameranthus by Westra (1985) is updated. A new species is described from French Guiana and Amapá, Brazil, increasing …
Two new mountainous species of Lactuca (Cichorieae, Asteraceae) from Iran, one presenting a new, possibly myrmecochorou…
It is shown that the concept of the Iranian endemic Lactuca polyclada in the sense of both its original author Boissier and its current use actually admixes two entirely different…