PhytoKeys
1332 published works on OPTIMAP from this source.
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1332 works
Showing 251 to 300 of 1332 works
The genus Plagiothecium (Plagiotheciaceae) in Europe — current state of knowledge, checklist and key to taxa
This manuscript presents current knowledge of the taxonomy, variability and distribution of taxa of the genus Plagiothecium in Europe. Currently the genus comprises 31 taxa: 17 sp…
Viola xinchengensis (Violaceae), a new species from central Guangxi, China
Viola xinchengensis (Violaceae), a new species from Guangxi, China, is established on the basis of morphological and molecular evidence. This new species resembles V. lucens, but …
Bambusa rushunii (Poaceae, Bambusoideae, Bambuseae), a new bamboo species from Guangdong, China
A new bamboo species, Bambusa rushunii, from Yangjiang City, Guangdong Province, China, is described and illustrated in this paper. The new species resembles B. gibba and B. dissi…
Columnea golondrinensis (Gesneriaceae), a new species from Cerro Golondrinas in the northern Andes of Ecuador
Exploratory field expeditions to the Chocó forests in the northern Andes of Ecuador resulted in the discovery of a new species of Columnea (Gesneriaceae). Columnea golondrinensis …
A synopsis of Christiana DC. (Malvaceae, Brownlowioideae), with a new species from the Brazilian Atlantic Forest
A taxonomic synopsis is provided for the genus Christiana, with emphasis on the American species. Full synonymies, typifications, comments about distribution, and notes on main di…
Schnabelia jiuzhaigouensis (Lamiaceae, Ajugoideae), a new species from Sichuan, China
Schnabelia jiuzhaigouensis C. Liu, F. Zhao & C.L. Xiang, a new species from north-eastern Sichuan, China, is described, based on both morphological and molecular phylogenetic evid…
Persicaria zhenaiguoi (Polygonaceae, Persicarieae), an overlooked new species from Dabie Mountains, central China
Persicaria zhenaiguoi Bo Li, a remarkable new species discovered from the summit of Tiantangzhai Peak of Dabie Mountains in Hubei Province, central China, is described and illustr…
Euonymus pushpagiriensis (Celastraceae), a new species from the central Western Ghats of Karnataka, India
Euonymus pushpagiriensis sp. nov., an understorey tree species from the montane (Shola) forests of Kodagu District of Karnataka is described and illustrated. The species is morpho…
A new species of Sedum (Crassulaceae, Saxifragineae) from Guangxi, China
A new species, Sedum guangxiense sp. nov., discovered in Guangxi Province, China, is described and illustrated. Molecular phylogenetic analyses and morphological differences indic…
Orobanche andryalae (Orobanchaceae): a new species from the Canary Islands
A new species of Orobanche is described from the Canary Islands. The plant belongs to the complicated Subsection Minores and has a distinct combination of morphological features, …
Taxonomic revision and phylogenetic relationships of Thinouia (Sapindaceae), a neotropical genus
A taxonomic revision of Thinouia (Sapindaceae) is presented, including typification and descriptions for all accepted species. Phylogenetic analyses based on molecular data confir…
No end to endemism – contributions to the difficult Nasa Weigend Series Alatae (Loasaceae). A new species from Peru and…
A new species of Nasa ser. Alatae (Urban & Gilg) Weigend from Northern Peru is described and illustrated. Nasa katjae sp. nov. was at first encountered by an observation on iNatur…
Primula yanbianensis (Primulaceae), a new species in Primula sect. Cortusoides from Sichuan, China
Primula yanbianensis T.Shuai, Lei Cai & Z.K.Wu, a new species of Primulaceae from Sichuan, China, is described and illustrated. Morphological evidence supports P. yanbianensis as …
Two new species of Ocotea (Lauraceae) with clustered leaves from the Uxpanapa region, Mexico
Two new species of Ocotea (Lauraceae) from Southern Mexico are described and illustrated. Based on their floral morphology, vegetative indument, and micromorphological attributes,…
Petrocodon curvitubus, a new species of Gesneriaceae from Guangxi, China
A new species of Gesneriaceae, Petrocodon curvitubus J.X.Wei, B.Pan & T.Ding, sp. nov. from Guangxi, China, is described and illustrated. The new species is morphologically simila…
Spiradiclis scorpiura (Rubiaceae), a new species from Guangxi, China
Spiradiclis scorpiura (Rubiaceae), a new calcareous species found in Guangxi, China, is described and illustrated. This new species is similar to S. coccinea, S. scabrida, and S. …
Gastrochilus obovatifolius (Orchidaceae, Aeridinae), a new species from the Daba Mountains of Chongqing, China
Gastrochilus obovatifolius, a new species discovered in the Dabashan of northeast Chongqing (China), is described and illustrated. The novelty morphologically resembles G. affinis…
Typhonium morangense (Araceae), a new species from the tropical forest of Eastern Nepal
A new species of the aroid genus Typhonium Schott has been discovered in Eastern Nepal. This species, named Typhonium morangense R.Ojha & S.Rai, is described based on comparative …
Carex yangchunensis, a new species of Cyperaceae from the limestone regions of Guangdong, South China
Carex yangchunensis (Cyperaceae), a new species of Carex sect. Cryptostachyae in limestone regions of Guangdong, China, is described and illustrated. Both morphological observatio…
Sinocrassula holotricha (Crassulaceae), a new species from Sichuan, China
A new species of crassulacean acid metabolism, Sinocrassula holotricha, is described based on specimen collected from Sichuan Province, Southwest China. The new species can be dis…
Tilia saxatilis (Malvaceae), a new species from limestone areas of Guangxi, China
Tilia saxatilis Z.C.Lu & W.B.Xu, a new species was discovered in limestone areas of Guangxi, China. The morphology shows that T. saxatilis is similar to T. tuan Szyszyl., but diff…
Gymnema phuquocense (Apocynaceae, Asclepiadoideae), a new species from Vietnam
A new species of Gymnema from Vietnam – G. phuquocense – is described, illustrated, and compared with the similar G. yunnanense. Gymnema phuquocense differs from G. yunnanense by …
A new tree species of Compsoneura (Myristicaceae) from the Andean forests on the Eastern Cordillera Range, Colombia
Compsoneura crassitepala, a new species of Myristicaceae is described, illustrated and its morphological relationships with related species are discussed. This new species is foun…
Acorus shannai (Acoraceae), a new species from Southern China
Acorus shannai (Acoraceae) is a commonly used seasoning in southern China. It was previously misidentified as A. macrospadiceus (Yamam.) F. N. Wei & Y. K. Li before. Through compa…
Sideritis carpetana (Labiatae), a new high-mountain Mediterranean species from the marble outcrops of the Sierra de Gua…
A new species of Sideritis (Sideritis carpetana) is described from the calcareous, high-mountain Spanish flora in the central part of the Iberian Peninsula. It is found in a Medit…
Investigating a hybrid mixed population leads to recognizing a new species of Arctostaphylos (Ericaceae)
While investigating the potential for Arctostaphylos species to hybridize in the mixed populations of Point Sal and Burton Mesa in Santa Barbara County, California, we discovered …
Sedum simingshanense (Crassulaceae), a new species from Zhejiang, East China
In this paper, Sedum simingshanense sp. nov. is described as a new species based on morphological and molecular analyses, and its taxonomic relationships are discussed. Morphologi…
Primulina xingyiensis (Gesneriaceae), a new species in the karst landforms of Guizhou Province, China
Primulina xingyiensis X.X.Bai & F.Wen, a new species of Gesneriaceae in the karst landforms of Xingyi City, Guizhou Province, China, is described and illustrated. Morphologically,…
Polygala spatulata (sect. Pseudosemeiocardium, Polygalaceae), a new species from Guangxi, China
Polygala spatulata Y. Nong & Run Hua Jiang (sect. Pseudosemeiocardium, Polygalaceae), a new species from a karst cave in west Guangxi, China, is described and illustrated. This ne…
Melicope iolensis (Rutaceae), a new tree species from Kaua‘i, Hawaiian Islands
A newly-discovered endemic tree species of Melicope from Kaua‘i, Hawaiian Islands, is described and illustrated with notes on its distribution, ecology, conservation status and ph…
Microtoena wawushanensis (Lamiaceae, Lamioideae): A new species from Sichuan, China
Microtoena wawushanensis, a new species from Sichuan, China, is described and illustrated here. The new species is closely related to M. moupinensis and M. prainiana, but differs …
Xanthophytum antoanense (Rubiaceae, Ophiorrhizeae), a new species from Vietnam
Xanthophytum antoanense is described as a new species endemic to Central Vietnam. It is morphologically closest to X. capitatum in having setose hairs on the abaxial leaf surface …
Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series Muricatae
In the process of studying the species Cryptantha muricata and its varieties, we discovered a unique taxon of the genus that resembles C. muricata but differs in having a mostly d…
Ctenophora hunanensis sp. nov. (Bacillariophyta) from the Yongle River in Hunan Province, China
A new species, Ctenophora hunanensis Bing Liu & Rioual, sp. nov., found in the Yongle River, a tributary of the Xiang River (Hunan Province, southern China) is described on the ba…
A new marine diatom (Bacillariophyceae) species – Halamphora lombokensis sp. nov. and the first observation for H. banz…
This paper describes a new species of Halamphora – Halamphora lombokensis sp. nov. and records for the first time Halamphora banzuensis for the coasts of Indonesia. The study util…
Revisiting the genus Tulipa (Liliaceae) in Kazakhstan, the country with the richest tulip diversity worldwide
The genus Tulipa L., belonging to the Liliaceae family, has significant economic, horticultural, and ecological importance and is culturally revered in various regions worldwide. …
Africa and Arabia encompass a much greater species diversity in the Achyranthes aspera aggregate (Amaranthaceae, achyra…
Achyranthes in its traditional sense (excluding Achyropsis that phylogenetically falls into Achyranthes) has been considered to contain a restricted (three to four) number of spec…
Dryopteris × subdiffracta (Dryopteridaceae), a new natural hybrid fern from Guangxi, China
A new natural hybrid fern, Dryopteris × subdiffracta (Dryopteridaceae), is reported from Guangxi, China. Molecular phylogenetic analysis based on DNA sequences from the low-copy n…
Several new combinations from previous Didymocarpus to Palmatiboea (Gesneriaceae)
The recently published species, Didymocarpus pingyuanensis, is transferred here to the recently re-circumscribed genus, Palmatiboea. Two varieties, recently assigned to Palmatiboe…
Two new species of Salvia (Lamiaceae) from the dry forests of Dominican Republic
We describe two new species of Salvia from the Antillean dry forests, belonging to Salvia section Urbania. These species’ names honor two Latin American botanists who have advance…
Phylogenetic and taxonomic studies of six recently-described Stellaria species (Caryophyllaceae) from China, with an ad…
The phylogenetic studies of the tribe Alsineae (Caryophyllaceae) have revealed a clearer boundary between the genus Stellaria and related genera, primarily relying on the morpholo…
A new species in Begonia sect. Diploclinium (Begoniaceae) from Guangxi, South China
Although Guangxi represents one of the distribution centres of begonias in China, the sect. Diploclinium (Wright) A. DC is not well documented herein. In this article, we illustra…
Rubus tingzhouensis (Rosaceae), a new species from Fujian, China
Rubus tingzhouensis C.An & G.C.Lin, a newly-defined species within the family Rosaceae from Fujian Province, China, is formally described and illustrated here. R. tingzhouensis is…
Cladopus yangjiangensis (Podostemaceae), a new species from Guangdong, South China, redefining the phylogenetic relatio…
This paper introduces Cladopus yangjiangensis, a newly identified species that enriches our understanding of the diversity of the Podostemaceae in East Asia. Distinctive in its mo…
Taxonomic studies on the genus Sanicula (Apiaceae) from China (III): The morphology and distribution of S. caerulescens…
In the present study, we examined the morphological variations within Sanicula caerulescens and determined the identity of S. oviformis through observations of herbarium specimens…
Leontopodium nyingchiense (Asteraceae), a new species from Xizang (Tibet), China
Leontopodium nyingchiense, a new species of Asteraceae from the Xizang (Tibet) Autonomous Region of China, is described and illustrated here. Morphologically, it is most similar t…
Insights to the taxonomy and phylogeny of the genus Ptilagrostis worldwide (Poaceae, Stipeae) with a key to species ide…
Ptilagrostis (false needlegrass) is a genus of high-mountain grasses distributed in Central and North-East Asia, as well as in North America. The phylogenetic position of the genu…
Morphological and molecular characterization of Halamphora vantushpaensis (Bacillariophyceae, Amphipleuraceae), a new d…
In this study, we describe Halamphora vantushpaensis sp. nov., a newly identified diatom species found in the highly alkaline Lake Van in Eastern Turkey (Türkiye). This new specie…
Reinstatement of Struthanthus venetus (Loranthaceae): an endemic species of central Mexico
Struthanthus Mart. is a challenging genus because the abundance of reproductively incomplete specimens (lacking mature pistillate and staminate flowers and fruit) has inspired the…
Elymus multiramosus (Poaceae), a new species from the north-western Qinghai-Tibetan Plateau, China
A new species from China, Elymus multiramosus Y.C. Zhang, sp. nov. is described and illustrated herein, based on morphological characters and molecular phylogenetic analysis. The …