Roman Romanov

Typification of Nitella axillaris A. Braun, N. axilliformis Imahori, and N. dregeana A. Braun ex Kützing (Characeae, Charophyceae)

A new dioecious species of Tolypella having both male and female plants was discovered in a historical herbarium collection by Haussknecht from Iran. This species described here as T. iranica sp. nov. was identified based on morphological characteristics and molecular markers, including chloroplast (rbcL) and nuclear (ITS) DNA sequences. Additional...

Recent phylogenetic studies of the genus Tolypella (A.Braun) A.Braun sensu lato have resulted in a better understanding of the phylogenetic affinities of many species of this genus (Pérez & al., 2014, 2017; Saber & al., 2021; Holzhausen & al., 2023; Romanov & al., 2024; Schubert & al., 2024). They showed the presence of three well-supported clades...

Three records of myxomycetes for the Republic of Belarus are presented. For each species, locality, ecology and its distribution are provided.

First record of acrasia slime mold for the Republic of Belarus are presented. For species, locality, ecology and its distribution are provided.

The article presents the first records: for Russia of one species of chrysophyte algae and one species of agaricoid basidiomycetes, for the Republic of Belarus of three lichenicolous fungi and four species of slime molds, for Uzbekistan and Tajikistan by one species of lichens, and the first records for regions of Russia: one charophyte for the Tam...

In this paper, we present the first reports of liverwort Riella macrocarpa in Montenegro, Sicily, and Greece. The species has been documented as occurring in former salt pans in Montenegro and Attica, in natural brackish ponds in Sicily, and in a flooded parking area in the Peloponnese. In these environments Riella macrocarpa was found growing eith...

Sphenomonas mirabilis Playfair was described as having a single emergent flagellum, although it is not apparent in the original illustrations (Playfair, 1921: 140, pl. IX [9]: figs 4, 5). Later this species was transferred to the genus Rhabdomonas Fresenius because of this character, making it different from the biflagellate genus Sphenomonas F.Ste...

Abstract Field studies in 2022–2024 and the checking of collection of the Natural History Museum of Montenegro revealed seven new national species records for Montenegro: Chara corfuensis Groves ex Fil., C. galioides DC., C. squamosa Desf., Sphaerochara intricata (Trentep. ex Roth) Feist-Castel & N. Grambast, Tolypella hispanica Nordst. ex Allen, T...

This chapter gives an overview of the recent state of knowledge regarding Nitella wahlbergiana. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter will introduce the reader into the content of the book, giving a brief overview about the chapters intention and the general aim of the concept followed. It also contains a short history of how this book evolved and why the team thought it was necessary to compile such an overview.

This chapter gives an overview of the recent state of knowledge regarding Chara kirghisorum. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara globata. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara horrida. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara uzbekistanica. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara aculeolata. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Nitella ornithopoda. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the current state of knowledge regarding Chara filarszkyana, a taxon of uncertain affiliation. It contains a full morphological description including a discussion of the validity of characters used for taxonomic discrimination.

This chapter gives an overview of the recent state of knowledge regarding Nitella palhinhae, a taxon of uncertain affiliation. It contains a full morphological description including a discussion of the validity of characters used for taxonomic discrimination.

This chapter gives an overview of the recent state of knowledge regarding Chara gymnophylla. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara neglecta. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This addendum gives an overview of the recent state of knowledge regarding Chara hydropitys, a taxon that might occur in Europe. There are no herbarium vouchers of the species for Europe, but it is included here to encourage resampling of the potential habitats.

This chapter gives an overview of the recent state of knowledge regarding Nitella dixonii. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara dissoluta. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding “Mediterranean Chara”, a taxon of uncertain affiliation. The chapter contains a full morphological description including a discussion of the validity of characters used for taxonomic discrimination.

This chapter gives an overview of the recent state of knowledge regarding Chara hispida. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter provides a determination key for all Eurpoean species of charophytes dealt with in this book. Illustrated explanations of the main characters used for determination allow easy use also for readers not yet familiar with this group of sterptophytes.

This chapter gives an overview of the recent state of knowledge regarding Chara altaica. It contains a full morpholigical description including identification hints and remarks on the petential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara subspinosa. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an introduction to the comprehensive species-specific information available for all European charophytes. All chapters follow the taxonomic concept outlined in detail in Chap. 5, for which the determination key (Chap. 10) was developed, and the checklist (Chap. 2), which includes all taxa retained by the authors of this book. Aft...

This chapter gives an overview of the recent state of knowledge regarding Chara oryzae. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara squamosa. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This chapter gives an overview of the recent state of knowledge regarding Chara baltica. It contains a full morphological description including identification hints and remarks on the potential risks of confusion. It also provides information on the distribution and ecology of the species in Europe and tackles potential threats.

This paper presents the results of a study of the macroalgal flora in Unskaya Inlet (White Sea) that was carried out in 2022–2023. The checklist of macrophytes, summarized from original and literature data, comprises 94 species: Chlorophyta, 26; Rhodophyta, 34; Phaeophyceae, 30; Xanthophyceae, 2; Charophyceae, 1; and Cyanophyta, 1. Of these, 46 spe...

Lychnothamnus barbatus (Charophyceae, Characeae), one of the rarest relict macroscopic charophyte species in the world, has a distinct disjunctive range, having been known from fossil remains in northern Asia for a long period. Living plants of Lychnothamnus barbatus were found in freshwater lakes in Southern Siberia in the Minusinsk forest-steppe...

The first records for Russia of one species of siphonous yellow-green algae, ascomycete, and lichenicolous fungus, and the first records for regions of Russia: nine species of siphonous yellow-green alga for the Arkhangelsk, Astrakhan, Moscow, Volgograd regions, two diatom species for the Tyumen Region, nine species of basidiomycetes for the Novgor...

One lycophyte genus and species (Isoëtes gymnocarpa), and one aquatic magnoliophyte species (Utricularia × neglecta) new for the flora of Montenegro are reported. It is suggested that the new population of Isoëtes gymnocarpa and its habitat should be protected.

This paper presents the results of a study of the macroalgal flora in Unskaya Inlet (White Sea) that was carried out in 2022-2023. The checklist of macrophytes, summarized from original and literature data, comprises 94 species: Chlorophyta, 26; Rhodophyta, 34; Phaeophyceae, 30; Xanthophyceae, 2; Charophyceae, 1; and Cyanophyta, 1. Of these, 46 spe...

A new dioecious species of Tolypella, T. mongolica sp. nov. from the section Tolypella, was described using an integrative taxonomy. It was found in three distant localities - shallows of a brackish small lake and a channel in the midland steppe in Mongolia and the Altai Mountains, and a small brackish water body in the dry steppe in Southeast Euro...

Supplement. Fig. 1. The distribution range of Tolypella mongolica.

Nitella hyalina and Coleochaete nitellarum were found for the first time in the Siberia. Nitella wahlbergiana, a new species record for Altai Territory, was spotted in one of the southernmost localities of the species distribution range. All species were growing together with Chara braunii, C. virgata and Nitella syncarpa, rare species in Siberia....

A novel inland record of the green alga Ulva intestinalis was found in central Kamchatka, in a brackish stream originating from cooled waters of drilled thermal springs. This species was observed in May 2017, but not encountered again at the same site despite targeted search. Its occurrence in central Kamchatka was surprising given the natural envi...

Chara virgata Kütz. was found in a sphagnum bog on Urup Island of the Kurils. This is a first species record of charophytes for the Sakhalin Region and new species record for the south of the Far East. The plants have notable deformation of stem cortex at old parts rarely noted for Chara L. and unknown for this species.

Chara gymnophylla is one of the first charophyte species reported for Serbia during the late 19th and the early 20th centuries, and at that time it was the second in terms of the frequency of its occurrence in the country. General taxonomic misinterpretations in the past resulted in the concealment of another species, C. squamosa, within the findin...

First records for Russia of one colorless chrysophyte species, five species of desmid algae, and two species of lichens, first record for Georgia of one freshwater green alga, first record for the Republic of Kazakhstan of one yellow-green alga, first records for the Republic of Belarus of three species of myxomycetes, first record for the Republic...

Chara canescens Loisel. is one of two European species of the section Desvauxia R.D. Wood of the genus Chara L. Whereas most populations of C. canescens reproduce parthenogenetically, a few sites with sexual reproducing populations are known. Studies of European C. canescens oospore morphology led to open questions about the taxonomic status. Here...

First records for Russia of naviculoid diatom from the Yaroslavl Region, and micromycetes from the Republic of North Ossetia — Alania, green alga for the Leningrad Region and Yamal-Nenets Autonomous Area, fragilarioid diatom for the Kaliningrad Region, red alga for the Nizhny Novgorod Region, cyanoprokaryota for the Leningrad Region and Chukotka Au...

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: saprotrophic fungus Geastrum morganii, Guignardia istriaca and Hypoxylon howeanum, mycorrhizal fungus Amanita friabilis and Suillus americanus, xanthophyte Vaucheria frigida, stonewort Chara hispida, liverwort Calypogeia integristipula and R...

The charophytes in many regions of the world are still poorly understood. This hampers the synthesis of distributional and ecological datasets at worldwide and continental scales, as well as complicates the generalization of species concepts for widely distributed and local taxa. To fill in the blanks for charophytes in the Caucasus and to improve...

To fill in the blanks for charophytes in the Caucasus to improve our knowledge of species distribution areas in Eurasia, a field survey and study of available specimens from Dagestan (North Caucasus, Russia) was conducted based on morphological observation and molecular genetic analysis. Seventeen new localities for six Chara species and one Tolype...

Eleven species of charophytes from three genera, Chara, Nitella and Nitellopsis, were found in the Republic Bashkortostan according to herbarium collections and field studies covering the years 1915–2016, among them one newly recorded genus Nitellopsis and four new records of species, namely Chara contraria, C. papillosa, C. subspinosa, and Nitello...

Summary. In the course of field research and review of materials stored in the herbarium fund of the National Park “Krasnoyarskie Stolby”, information was clarified on the distribution of rare species of higher plants in the protected areas in the basins of the Mana and Bazaikha rivers. For the first time, 1 species (Lemna gibba) and 1 hybrid (Pota...

Several Chara L. species have ‘unfinished’ morphogenesis that is recognizable because of their imperfect stem and branchlet cortication compared to the perfectly corticated species. Chara denudata A. Braun, described from South Africa, is one of these species, assumed for a long time to be conspecific with C. dissoluta A. Braun ex Leonhardi, as des...

The presented research was conducted during 2019–2022 in south and southeast Kazakhstan to document the species richness, distribution, and ecology of charophytes (Characeae) as a first step towards to estimate the need for species protection. Across the 54 sites, we found ten species and one variety. Chara vulgaris Linnaeus and C. contraria A.Brau...

Nitella sonderi A.Braun is newly reported from the Patagonian Plateau, Argentina. This species was only reliably known from Australia until now. The morphological and genetic studies carried out here found no difference between Argentinian and Australian specimens. The species is dioecious, mucous-bearing on fertile whorls, with two to three-forked...

First records of Xanthophyceae for the Vologda and Sverdlovsk regions, and Moscow, Characeae for the Vologda, Orenburg, Tver regions, diatoms for the Orenburg Region, aphyllophoroid fungi for the Novgorod and Tyumen regions, agaricoid fungi for the Novosibirsk and Vologda regions, and for the Republic of Altai, lichens for the Arkhangelsk and Murma...

Four species and one hybrid of aquatic plants were found for the first time in South Siberian regions: Ranunculus subrigidus W.B. Drew and Utricularia australis R. Br. in Kemerovo Region, Potamogeton × angustifolius J. Presl and Sparganium stoloniferum (Graebn.) Buch.-Ham. ex Juz. in Novosibirsk Region, Elatine triandra Schkuhr. in Tomsk Region. Th...

European paddy fields harbour a morphologically and genetically unusual charophyte that is distant from any other European species. The new species, Chara oryzae from Mediterranean rice fields, was described using an integrated approach, including scanning electron microscopy and molecular phylogenetics. The combination of monoecy, a triplostichous...

The records of new localities of charophytes from the Yenisey Siberia and confirmations for the ones known before were summarized as a result of study of available herbarium collections and field studies during 2007–2021. The twenty species, including one novel genus and five novel species records, 59 new localities (67 % of its total number), 127...

Novel species records for some Russian regions were found as a result of field studies of 2016-2020 and survey of herbarium collections. They improved the species distribution in the Northern Eurasia. The novel species records were revealed for Belgorod, Bryansk, Ivanovo, Leningrad, Omsk, Novgorod, Novosibirsk, Tula, Tyumen, and Vladimir Regions, K...

The original material of Chara fischeri Migula and C. gobiana Vilhelm was located in the herbarium of the Komarov Botanical Institute of the Russian Academy of Sciences (LE) in order to clarify its nomenclature and taxonomy. A study of the original material allowed formal designation of their lectotypes here in accordance with ICN Art. 9.3 for the...

A new species, Chara lipkinii, was described based on specimens from the Mediterranean, Israel. Dioecy, 10-13 branchlets in a whorl, complete tylacanthous to isostichous displostichous axial cortex with very short solitary spine cells, hardly visible diplostephanous bistipulate short obtuse stipulodes, frequently appearing as haplostephanous, in co...

The species Nitella capillaris was reliably found in Russia. It was earlier known from two uncheckable records of ninetieth century from Kaliningrad and Kursk Oblasts. Its new locality in Pskov Oblast is the north-easternmost one in species distribution range. The species was suggested for protection in Russia.

The purpose of the data paper was to introduce into scientific literature the results of scientific work carried out for the third edition of the 'Red Data Book of the Komi Republic'. The article reflects methodological approaches to the formation of a list of rare and in need of protection species and describes the corresponding datasets published...

The new records of genera and species of algae (Chlorodendrophyceae, Chlorophyceae, Cryptophyceae, Mesostigmatophyceae, Raphidophyceae, Xanthophyceae) for the West-Siberian Plain and the Far East, including Altai Krai, Novosibirsk Oblast and Primorskii Krai, were revealed. All species listed are new ones for the regions, 3 genera and 14 species are...

The problem of protecting rare communities in the vegetation cover still remains poorly studied. Currently, it is relevant for aquatic and coastal aquatic plant communities of lakes and river estuaries of the Arkhangelsk Region. Two critical criteria were used to distinguish rare communities: 1) protected species are cenosis-formers, 2) species tha...

Проведены комплексные гидробиологические исследования озер на территории плато Укок, входящего в трансграничную биосферную территорию «Большой Алтай». Показано, что за последние два десятилетия наблюдается рост трофности непроточных озерных водоемов высокогорий Алтая. Полученные результаты можно экстраполировать на всю трансграничную территорию и и...

The original material for some charophyte species described by Lessing (1835), Ruprecht (1845) and Hollerbach (1960) was located in the Herbarium of the Komarov Botanical Institute of the Russian Academy of Sciences (LE) in attempt to clarify their nomenclature and taxonomy. Study of the original material allowed designation of lectotypes here.

Floristic novelties in the Republic of Altai In the Republic of Altai, there are about 7 thousand lakes with a total area of more than 600 km2 and most of them are practically unexplored. Despite the fact that botanical research has been carried out on the territory of the Republic of Altai for a rather long period and generalizing works have been...

Vishnyakov V.S., Romanov R.E., Komarova A.S., Belyakov E.A., Moseev D.S., Churakova E.Yu., Czhobadze A.B., Philippov D.A. 2021. Novyye nakhodki kharovykh vodoroslej (Characeae) v Evropejskoj Rossii [New charophyte records (Characeae) in European Russia]. Botanicheskii Zhurnal. Vol. 106, №1. P. 61–76. DOI: 10.31857/S0006813621010117 (in Russian). Th...

Chara baltica (Hartm.) Bruz. was found in the bays of the northern part of the Black Sea as a result of our joint efforts for clarification of some charophyte species from the region. The species was reported new to Ukraine. This is the first reliable record of this species in the Black Sea Region and Russia. In the studied populations, C. baltica...

The main objectives of this study are to identify the role of external physical and chemical factors in productivity formation of small lakes ecosystems in the south of Western Siberia as well as to assess the impact of these factors on some ecosystem elements (phyto- and zooplankton, macrophytes, benthos) in the light of climate change. The explor...

Действующий перечень объектов животного и растительного мира, занесённых в Красную книгу Ненецкого автономного округа, утверждён приказом Департамента природных ресурсов, экологии и агропромышленного комплекса Ненецкого автономного округа от 27.06.2019 № 25-пр (Приложение 1 к приказу). В настоящее (второе) издание Красной книги включены 229 таксоно...

Pollution of natural water bodies with toxic metals is a pressing environmental problem. Sources of toxic metals can be wastes of rocks and spent ores, wastewater from mines and quarries, wastes of agglomeration industries, emergency situations in the catchment area. Purification of natural water bodies by methods used for wastewater treatment is t...

This paper presents new data on the species of genus Vaucheria in Russia from analysis of original and museum collections. In total, 20 species were identified in 152 locations of 22 administrative regions of the European Russia, Western Siberia, and the Russian Far East. Vaucheria lii, a rare multiregional species new to Russia, has been found in...

Красная книга Архангельской области. Архангельск: САФУ, 2020. 490 с.

Nitella singaporensis is described as a new species based on specimens from Singapore. This study provides detailed examination of the fully mature plant. The species is described here using multiple methods including scanning electron microscopy and molecular phylogenetics. Re-examination of the type specimen of N. caespitosa, the most similar spe...

New species and localities records of charophytes from different regions of Russia, Ukraine, Turkey, Uzbekistan and Kazakhstan have been found during study of collections stored in MW and H. Chara connivens have been reported for Uzbekistan for the first time.

A revision of specimens from selected herbaria allowed extension (or confirmation) of the geographical distribution of five charophyte species. Chara globata is a new record for Africa (Tunisia), Romania and some Central Asian countries, C. dominii for Kyrgyzstan, C. oedophylla for Portugal, Tolypella hispanica for Northern Asia and Lychnothamnus b...

New records to the Characean flora of Sicily are presented. Five species (Chara baltica, C. conimbrigensis, C. oedophylla, Nitella gracilis, Tolypella salina) are new to Sicily, two of them being also new to Italy (Chara conimbrigensis, C. oedophylla). Two species are confirmed for Sicily (Chara aspera, Nitella opaca), three (Chara braunii, C. cane...

In this study, a simple submersible device was tested to remove and recover Cd(II), Cu(II), Pb(II), and Zn(II) from model wastewater and real natural water. To obtain this device, fine particles (< 0.1 mm) of a new hybrid adsorbent based on the mesoporous carbon and Fenton-modified humic acids were fixed onto a highly porous polymeric matrix. The h...

Chara tomentosa L. Nitellopsis obtusa (Desv.) J. Groves The drawings are based on the excellent drawings by M.M. Hollerbach and L.K. Krassavina (1983), and W. Krause (1997).

The Baraba and Kulunda steppes are located in southwestern Siberia in an area with an arid continental climate. This paper presents results of the first study of the hypersaline Lake Krasnovishnevoye (Baraba steppe, TDS (total dissolved solids)=297 g/L, pH 7.88). The major chemical, mineralogical and biological features of the lake were studied and...

The hybrid adsorbent MC-HA-F was prepared by mechanochemical treatment of the mesoporous carbon (MC) and Fenton modified humic acid (HA-F). Then, fine particles of this adsorbent were fixed onto a highly porous polymeric materisl. The obtained composite adsorbent was tested as submersible device for treatment of multi-metal (Cd, Cu, Pb, Zn) model w...