Read by QxMD icon Read


Joanne Pei-Chih Tan, Sheh May Tam, Ruth Kiew
Begoniayenyeniae is a new species of horticultural value known only from the Endau Rompin National Park, Peninsular Malaysia. It is similar to Begoniarajah with which it had previously been confused in the number of tepals and leaf characters. The new species is compared with three similar species, B.foxworthyi, B.rajah and B.reginula and photographs of all four species and descriptions of B.yenyeniae and B.rajah are provided. Molecular analysis using the ndhF-rpl132 chloroplast marker confirms the four species as distinct...
2018: PhytoKeys
Richa Kusuma Wati, Rogier R van Vugt, Barbara Gravendeel
We present a multilingual interactive key available online ( that can be used on any web browser without the need for installing additional software. The key includes 169 species of Glomera , a genus within the necklace orchids (Coelogyninae) not yet comprehensively treated in any recent field guide or web-based survey. With this key, plants can be identified using a combination of vegetative and floristic characters in addition to distribution and ecology as a first step to further taxonomic revisions...
2018: PhytoKeys
Gildas Gâteblé, Jérôme Munzinger
A new species, Acropogonhorarius Gâteblé & Munzinger, sp. nov. (Malvaceae, Sterculioideae), is described from New Caledonia. It is known only from two very small subpopulations in the rainforests of the Petchécara Pass between Thio and Canala, in the southeast of Grande-Terre, New Caledonia's main island. This shrub to small tree has hastate leaves and minute sessile tubular whitish-yellowish flowers and is strikingly different from all other members of the genus. The type locality is geologically complex and located within one of only four amphibolite lenses known in New Caledonia...
2018: PhytoKeys
Alexander P Sukhorukov, Maya V Nilova, Anastasiya A Krinitsina, Maxim A Zaika, Andrey S Erst, Kelly A Shepherd
The former Chenopodiumsubgen.Blitum and the genus Monolepis (Chenopodioideae) are characterised in part by a reduced (0-4) number of perianth segments. According to recent molecular phylogenetic studies, these groups belong to the reinstated genera Blitum incl. Monolepis (tribe Anserineae) and Oxybasis (tribe Chenopodieae). However, key taxa such as C.antarcticum , C.exsuccum , C.litwinowii , C.foliosumsubsp.montanum and Monolepisspathulata were not included and so their phylogenetic position within the Chenopodioideae remained equivocal...
2018: PhytoKeys
Maurício Takashi Coutinho Watanabe, Nara Furtado de Oliveira Mota, Mayara Pastore, Fernando Marino Gomes Dos Santos, Daniela Cristina Zappi
The results of intensive fieldwork in the National Forest of Carajás (FLONA Carajás) led to the discovery of pistillate plants of Daphnopsisfilipedunculata , an endemic species from the Serra dos Carajás, previously known only from staminate individuals. These newly discovered populations add valuable missing information related to pistillate buds, mature flowers and fruits.
2018: PhytoKeys
Gianniantonio Domina, Giuseppe Venturella, Maria Letizia Gargano
This paper proposes a new hierarchical land classification system for the mapping of species distribution at national or regional scales. Our integrative framework incorporates two hierarchical levels inferred from historical, climatic, geomorphological and geological attributes. The feasibility of this proposal is based on the use of historical collections and literature data, as well as on its ability to combine old low-precision data with more recent records of higher resolution. The system is set up for vascular plants, but it can also be used for other taxonomic groups...
2018: PhytoKeys
Yu-Xiao Zhang, Peng-Fei Ma, De-Zhu Li
Ampelocalamuscalcareus is a climbing and slender bamboo, known from south Guizhou, China. This species grows in broadleaved forests of limestone montane areas. Recent molecular phylogenetic analyses demonstrated that A.calcareus was sister to all other lineages of the tribe Arundinarieae rather than a member of Ampelocalamus . The morphological features and habitats of A.calcareus and related genera including Ampelocalamus , Drepanostachyum and Himalayacalamus were compared and discussed. The characteristics of the branch complements, nodes and foliage leaves distinguish A...
2018: PhytoKeys
Guoqian Hao, Ihsan A Al-Shehbaz, Lei Zhang, Xinyi Guo, Hao Bi, Songbai Xu, Jianquan Liu
Eutremananum , a new high-elevation (4500-4600 m) species from Chola Shan, Sichuan (Southwest China), is described and illustrated. It is similar morphologically to E.nepalense but is readily distinguished by having oblong to elliptic or obovate to spatulate (vs. suborbicular to broadly ovate) leaves, glabrous (vs. puberulent) sepals and ovate to oblong fruit 4-7 × 2-3 mm with flattened valves (vs. ovoid to subglobose fruit 2-3 × 1.8-2 mm with rounded valves). The genetic differences amongst E.nanum , E.nepalense and other close relatives are further confirmed by phylogenetic analyses using ITS and cpDNA sequence variations...
2018: PhytoKeys
Ashley Raymond Field
Phlegmariurusvanuatuensis 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) Ching. The Vanuatuan species differs from the widespread Asian-Oceanian species in several characteristics, most notably its acutely divergent leaf arrangement and thicker less branched fertile spikes. Phlegmariurusnummulariifolius is here re-circumscribed as plants occurring in Asia and into Oceania as far east as the Solomon Islands, being replaced eastwards by P...
2018: PhytoKeys
Miguel Angel García, Daniel L Nickrent, Ladislav Mucina
Thesiumnautimontanum M.A. García, Nickrent & Mucina, a new species from the Matroosberg Mt. of Western Cape Province of South Africa, is described and illustrated. This species shows several morphological features unusual for the genus including stem sympodial branching, indeterminate spicate inflorescences subtended by numerous bracts and fleshy, non-trichome tissue lining the inside of the corolla lobes. Molecular phylogenetic analyses using nuclear ribosomal internal transcribed spacer sequences place this taxon as sister to all African, Madagascan and South American Thesium species...
2018: PhytoKeys
Eric J Tepe
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 colonies. The Expedition was active in the New World for 38 years and was led by Hipólito Ruiz and José Pavón, who collected in Peru and Chile for the first 11 years before returning to Spain to work on publication of the Flora Peruviana, et Chilensis . Work on the ground for the reminder of the project in Peru and later Ecuador, was continued by Juan Tafalla and Juan Manzanilla...
2018: PhytoKeys
Murat Koç, Ümit Budak
A new species Phrynahamzaoglui was discovered in Hekimhan (Turkey, Malatya province) where it grows on hillsides. The P.hamzaoglui and P.ortegioides were compared with each other in terms of their general morphology and seed micromorphology. Description, distribution, illustration and conservation status of the new species are given. Seed lateral and surface, cells, anticlinal cell walls, periclinal cell walls structures were examined by scanning electron microscopy. The images were captured with the 500×, 100×, and 40× objective lens for the details...
2018: PhytoKeys
Raoufou Radji, Kossi Adjonou, Marie-Luce Akossiwoa Quashie, Komlan Edjèdu Sodjinou, Francisco Pando, Kouami Kokou
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 of University of Lomé, known also as Herbarium togoense is the national herbarium and is registered in Index Herbariorum with the abbreviation TOGO. It contains 15,000 specimens of vascular plants coming mostly from all Togo's ecofloristic regions. Less than one percent of the specimens are from neighbouring countries such as Ghana, Benin and Burkina Faso...
2018: PhytoKeys
Lei Zhang, Mingcheng Wang, Tao Ma, Jianquan Liu
Species delimitation in the genus Populus is particularly challenging due to high levels of intraspecific polymorphism as well as frequent interspecific hybridisation and introgression. In this study, we aimed to examine the taxonomic status of Populusningshanica and P.wulianensis using an integrative taxonomy that considers multiple operational criteria. We carried out morphometric analyses of leaf traits and genetic examinations (including sequence variations at five barcoding DNAs and polymorphisms at 14 nuclear microsatellite SSR primers) at the population level between them and two closely related species P...
2018: PhytoKeys
Iris Montero Muñoz, José María Cardiel, Geoffrey A Levin
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 Seychelles Archipelago). This is the first treatment of Acalypha of Madagascar since Leandri's monograph in 1942. A total of 151 scientific names related to Acalypha from this region are treated. We recognise 35 species (28 native and seven introduced), treat 93 names as synonyms (28 of them for the first time) and identify three as doubtful or excluded names...
2018: PhytoKeys
Marco O O Pellegrini, Charles N Horn, Rafael F Almeida
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 Pontederia to include Monochoria , Pontederia s.s. and the polyphyletic Eichhornia . We provide the needed ten new combinations and 16 typifications, arrange a total of 25 accepted species (six representing re-established names) in 5 new subgenera. Furthermore, we provide an identification key for the two genera accepted by us in Pontederiaceae, an identification key to the subgenera, identification keys to the species of each subgenus and commentaries on Pontederia s...
2018: PhytoKeys
Loren Bahls
Published checklists of freshwater diatoms that represent the American Northwest, Laurentian Great Lakes, Germany and the South Polar Region were compared systematically and the numbers of taxa shared by two or more of these regions were noted. There is a higher level of floristic correspondence between the American Northwest and Germany (71%) and between the American Northwest and the Laurentian Great Lakes (64%) than between the American Northwest and the South Polar Region (45%). These findings support a Holarctic Kingdom of diatoms that is parallel to the Holarctic Kingdom of flowering plants...
2018: PhytoKeys
Sandra Knapp, Tiina Särkinen
Solanumcaatingae 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 of the widespread circumtropical weed S.americanum Mill.; it is possible that more will be found once its distinct nature has been recognised. It differs from S.americanum and all other herbaceous black nightshades known in Brazil, in its combination of glandular pubescence and shiny black fruit with small spreading sepals. The description of S...
2018: PhytoKeys
Abdulrokhman Kartonegoro, Jan Frits Veldkamp, Peter Hovenkamp, Peter van Welzen
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 genera like Dalenia , Diplectria , Macrolenes and Omphalopus . Most of them are already regarded as synonyms of Dissochaeta except for Macrolenes which is considered a separate genus here as well. Dissochaeta is characterised by its scrambling habit, interpetiolar outgrowths, 4-merous flowers, dimorphic stamens and berry-like fruits...
2018: PhytoKeys
Tiina Särkinen, Peter Poczai, Gloria E Barboza, Gerard M van der Weerden, Maria Baden, Sandra Knapp
The Morelloid clade, also known as the black nightshades or "Maurella" (Morella), is one of the 10 major clades within Solanum L. The pantropical clade consists of 75 currently recognised non-spiny herbaceous and suffrutescent species with simple or branched hairs with or without glandular tips, with a centre of distribution in the tropical Andes. A secondary centre of diversity is found in Africa, where a set of mainly polyploid taxa occur. A yet smaller set of species is found in Australasia and Europe, including Solanum nigrum L...
2018: PhytoKeys
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"