Latest Articles from PhytoKeys Latest 3 Articles from PhytoKeys https://phytokeys.pensoft.net/ Fri, 29 Mar 2024 04:03:26 +0200 Pensoft FeedCreator https://phytokeys.pensoft.net/i/logo.jpg Latest Articles from PhytoKeys https://phytokeys.pensoft.net/ Taxonomic revision of the Erigeron acris group (Asteraceae) in Murmansk Region, Russia, reveals a complex pattern of native and alien taxa https://phytokeys.pensoft.net/article/111020/ PhytoKeys 235: 83-128

DOI: 10.3897/phytokeys.235.111020

Authors: Alexander N. Sennikov, Mikhail N. Kozhin

Abstract: Based on the evidence of morphology and a comprehensive revision of herbarium collections and field records, the taxonomy of the Erigeron acris group in Murmansk Region, European Russia, is completely revised. Its accepted diversity is increased from 2 to 8 taxa, including putative hybrids. The only native species, E. politus, is distributed in mountainous regions, along sea coasts and in the Kutsa River basin. Five species are alien: E. rigidus (previously confused with E. acris s.str.), E. acris s.str. (first recorded in the narrow taxonomic definition), E. brachycephalus (previously unrecorded), E. droebachiensis and E. uralensis (previously reported in error). Two major waves of the introduction of alien taxa are discovered, with different occurrences and species compositions. Regional and local dispersal by pomors (historical Russian settlers) occurred during their colonisation and traditional activities since the 12th century (archaeophytes or early neophytes); such alien taxa (E. rigidus, E. brachycephalus, and partly E. acris) are particularly common within the territory traditionally settled by Russian colonists but also found elsewhere along historical trade routes. Other alien species of the E. acris group (E. droebachiensis, E. uralensis, and partly E. acris and E. brachycephalus) colonised industrial areas in the 1960s–1990s as seed contaminants introduced during revegetation of slag dumps, stockyards, dams and channels. Putative hybrids between E. politus (native), E. rigidus and E. acris (aliens) are found in the places of co-occurrence. Updated nomenclature, synonymy and descriptions are provided for all accepted taxa.

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Research Article Wed, 15 Nov 2023 18:08:07 +0200
Cymbopleura natellia – a new species from Transbaikal area (Russia, Siberia) described on the basis of molecular and morphological investigation https://phytokeys.pensoft.net/article/72285/ PhytoKeys 183: 95-105

DOI: 10.3897/phytokeys.183.72285

Authors: Anton Glushchenko, Evgeniy Gusev, Yevhen Maltsev, John Patrick Kociolek, Irina Kuznetsova, Maxim Kulikovskiy

Abstract: A new cymbelloid diatom species from the genus Cymbopleura (Krammer) Krammer is described on the basis of molecular and morphological investigations. Cymbopleura natellia Glushchenko, Kulikovskiy & Kociolek, sp. nov. is, on the basis of results with molecular data, close to C. naviculiformis (Auerswald ex Heiberg) Krammer. The two species differ both by molecular distance and morphological features. Morphologically, C. natellia sp. nov. is compared with several other species in the genus. This work is a pioneer investigation of cymbelloid taxa using molecular tool from Transbaikal area.

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Research Article Tue, 19 Oct 2021 10:20:17 +0300
Distribution of the invasive plant species Heracleum sosnowskyi Manden. in the Komi Republic (Russia) https://phytokeys.pensoft.net/article/11186/ PhytoKeys 77: 71-80

DOI: 10.3897/phytokeys.77.11186

Authors: Ivan Chadin, Igor Dalke, Ilya Zakhozhiy, Ruslan Malyshev, Elena Madi, Olga Kuzivanova, Dmitrii Kirillov, Vladimir Elsakov

Abstract: Occurrences of the invasive plant species Heracleum sosnowskyi Manden. in the Komi Republic (northeastern part of European Russia) were recorded and published in the Global Biodiversity Information Facility (GBIF http://www.gbif.org) using the RIVR information system (http://ib.komisc.ru/add/rivr/en). RIVR stands for “Rasprostranenie Invasionnyh Vidov Rastenij” [Occurrence of Invasion Plant Species]. This citizen science project aims at collecting occurrence data about invasive plant species with the help of citizen scientists. Information can be added by any user after a simple registration (concept) process. However, the data published in GBIF are provided only by professional scientists. The total study area is approximately 19,000 km2. The GBIF resource contains 10894 H. sosnowskyi occurrence points, each with their geographical coordinates and photographs of the plants in the locus of growth. The preliminary results of species distribution modelling on the territory of European North-East Russia presented.

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Data Paper Thu, 9 Mar 2017 10:06:47 +0200