Botanica Pacifica最新文献

{"title":"Freshwater centric diatoms from Middle Miocene deposits of the Khanka Depression, Primorye Territory (Far East of Russia)","authors":"O. Likhacheva, A. S. Avramenko, M. Usoltseva, V. Pushkar","doi":"10.17581/bp.2021.10212","DOIUrl":"https://doi.org/10.17581/bp.2021.10212","url":null,"abstract":"The centric diatom flora from the Middle Miocene deposits of the Khanka Depression of Primorye (Far East of Russia) was in detail studied. The centric diatoms were presented by 10 species and intraspecies taxa belonging to four genera (Aulacoseira Thwaites, Alveolophora Moiseeva et Nevretdinova, Ellerbeckia Crawford, Melosira Agard) and three orders (Aulacoseirales, Paraliales and Melosirales). A detailed study with the use of LM and SEM allowed us to establish the high morphologic variability of the predominant representatives of the genus Aulacoseira. The diagnoses for the Alveolophora tscheremissinovae, Ellerbeckia kochii, Melosira undulata species were supplemented. The comparison of the taxonomic compositions of the centric diatoms from the Khanka complex with the even-aged complexes from other regions has shown the wide spreading of the genus Aulacoseira taxa in the freshwater bodies during this time period.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67435666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interspecific variation in foliar nutrients and isotopes of submerged macrophytes in the Cau Hai Lagoon, the typical brackish lagoon in Vientam","authors":"Y. DangThiNhu, N. Hoang, P. K. Lieu, H. Harada, K. Koba, N. Brion, D. V. Hieu, N. Hop, Tim Sierens, H. O. Venterink, Environmental Analytical","doi":"10.17581/bp.2020.09207","DOIUrl":"https://doi.org/10.17581/bp.2020.09207","url":null,"abstract":"K e y w o r d s : Najas, Halophila, Halodule,­salinity,­depth,­DIN,­phosphorus Р Е З Ю М Е Данг Ти Нху И, Нгуен Тиен Хоанг, Фам Хак Лию, Харада Х., Коба К., Брион Н., Ван Хью Д., Ван Хоп Н., Сиренз Т., Вентеринк Г.О. Межвидовая изменчивость листовых питательных веществ и изотопов погруженных видов макрофитов в типичной солоноватой лагуне. Подво­ дные­мак­рофиты­являются­ключевым­элементом­мелководных­прибрежных­ экосистем,­но­в­глобальном­масштабе­они­сократились­из-за­антропогенных­ нару­ше­ний­и­изменения­климата.­Листовой­элементный­и­изотопный­состав­ макрофитов­все­чаще­используется­для­идентификации­пищевого­статуса­и­ условий­окружающей­среды,­включая­потенциальные­стрессовые­факторы,­ но­для­этого­требуется­понимание­его­межвидовой­изменчивости.­В­настоя­ щей­работе­мы­представляем­межвидовые­вариации­внекорневых­питатель­ ных­веществ­(C,­N,­P)­и­стабильных­изотопов­(δ13C­и­δ15N)­четырех­видов­макрофитов­(Najas indica, Halophila beccarii, Halodule uninervis, Halophila ovalis)­в­лагуне­ Кау-Хай­ (Вьетнам)­ в­ зависимости­ от­ ключевых­ переменных­ окружающей­ среды.­Внекорневые­значения­C,­N,­δ13C­и­δ15N­варьировали­в­зависимости­ от­вида­и­были­связаны­с­соленостью,­глубиной­воды­и/или­концентраци­ ей­DIN.­Листовые­концентрации­N­и­C:N­коррелировали­с­концентрацией­ DIN­в­воде­(N. indica­и­H. beccarii­соответственно),­тогда­как­листовые­значе­ ния­C:P­коррелировали­с­концентрациями­P­в­осадке­(N. indica)­или­толще­ воды­(H. uninervis).­Внекорневые­δ13C­H. beccarii­и­H. uninervis­увеличивались­с­ со­ле­ностью,­а­δ15N­N. indica –­как­с­соленостью,­так­и­с­концентрацией­DIN­ в­воде.­Эти­водные­растения,­вероятно,­различались­либо­по­стратегиям­при­ обретения­ресурсов­(например,­поглощение­CO2­или­HCO3 –,­N­и­P­из­раз­ личных­источников),­либо­по­их­использованию­(например,­инвестиции­C­в­ струк­турные­ткани)­и­по­их­реакции­на­изменения­солености,­глубины­воды­ и­концентрации­DIN­в­воде.­Изученные­макрофиты,­вероятно,­испытыва­ ли­относительно­высокую­доступность­N­и­P,­а­другой­фактор­ингибировал­ фиксацию­углерода­и/или­накопление­углерода­у­разных­видов. Ключевые слова: Najas, Halophila, Halodule,­соленость,­глубина,­DIN,­фосфор Dang­Thi­Nhu­Y1,2* e-mail:­y.dang@vnuk.edu.vn Nguyen­Tien­Hoang7 e-mail:­nguyenhoanggis@gmail.com Pham­Khac­Lieu3 e-mail:­pklieu@hueuni.edu.vn Hidenori­Harada5 e-mail:­harada.hidenori.8v@kyoto-u.ac.jp Keisuke­Koba4 e-mail:­keikoba@ecology.kyoto-u.ac.jp Natacha­Brion6 e-mail:­nnbrion@vub.be Duong­Van­Hieu8 e-mail:­dvhieu@hueuni.edu.vn Nguyen­Van­Hop8 e-mail:­nvanhop@hueuni.edu.vn Tim Sierens1 e-mail:­Timothy.Sierens@vub.be Harry­Olde­Venterink1 e-mail:­Harry.Olde.Venterink@vub.be 1 Department­of ­Biology,­Vrije­Universiteit­ Brussel­(VUB),­Brussels,­Belgium 2 VNUK­Institute­for­Research­and­Execu­ tive­Education,­The­University­of ­Danang,­ 158A­Le­Loi­Street,­Hai­Chau­District,­ Danang,­Vietnam 3 Department of Science, Technology and­Environment,­Hue­University,­Hue,­ Vietnam 4 Center­for­Ecological­Research,­Kyot","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44338871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Do patterns of intra-specific variability and community weighted-means of leaf traits correspond? An example from alpine plants","authors":"V. Onipchenko, A. Rozhin, V. Smirnov, A. A. Akhmetzhanova, T. Elumeeva, O. P. Khubieva, K. V. Dudova, N. A. Soudzilovskaia, J. Cornelissen","doi":"10.17581/bp.2020.09109","DOIUrl":"https://doi.org/10.17581/bp.2020.09109","url":null,"abstract":"Intraspecific variability of the traits is usually less than interspecific, but directions of inter-and intraspecific variation along environmental gradients are not well studied. For 17 alpine species we test a hypothesis that the direction of intraspecific variation in leaf traits among different communities along an environmental gradient coincides consistently with community weighted mean (CWM) trait variation at the community level along the same gradient. We obtained two groups of leaf traits according to their response to CWM and topographic (snow depth and snow melt) gradients. For leaf mass and area intraspecific variation corresponded to CWM variation among communities. SLA, water content and leaf thickness patterns within species changed directly among communities according to the toposequence (snowmelt gradient). These results are well expressed for forbs, but mostly they were not significant for graminoids. For leaf area we obtained opposite response of forbs and graminoids to snowmelt gradient. Forbs increased, but graminoids decreased leaf area when snow depth increased. Intraspecific trait variation across natural gradients does not necessarily follow that for interspecific or community-level variation.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47836382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In vitro culture of the rare fern Polystichum craspedosorum (Maxim.) Diels.","authors":"L. A. Shelikhan","doi":"10.17581/bp.2020.09102","DOIUrl":"https://doi.org/10.17581/bp.2020.09102","url":null,"abstract":"K e y w o r d s : Polystichum craspedosorum, culture in vitro, spores, gametophyte, sporophyte Р Е З Ю М Е Шелихан Л.А. Культура редкого папоротника Polystichum craspedosorum (Maxim.) Diels. в условиях in vitro. Культивирование папоротников in vitro является эффективным методом их размножения и сохранения. Папоротник Polystichum craspedosorum (Maxim.) Diels – редкий вид для Амурской об лас ти, занесенный в региональные Красные книги ряда дальневосточных ре гионов. Целью работы была оценка репродуктивной эффективности P. craspedosorum в культуре in vitro с использованием спор в качестве эксплантов. Поверхностная стерилизация спор 2 % раствором 1,3-дихлоро-5,5-диметилгидантоина (сульфохлорантин-Д) в воде в течение 2,5 мин. была эффективна. Споры вы се вали на питательную среду Мурасиге-Скуга с половинным содержанием макросолей (1/2 MS) без добавления нитрата аммония, витаминов и регуляторов роста, с добавлением 2 % сахарозы, 0,8 % агара, при pH 5,8, и выращивали при фотопериоде 16 ч. Прорастание спор составило 85 %. Та же питательная среда была пригодной для культивирования гаметофитов и по лучения спорофитов. Для акклиматизации гаметофитов и молодых споро фитов в качестве субстрата использовали смесь торфа и вермикулита (2:1, об./об.). Акклиматизированные гаметофиты давали большее число спо ро фитов, чем гаметофиты в условиях in vitro. Однако появление спорофитов наблюдали раньше в условиях in vitro. Ключевые слова: Polystichum craspedosorum, культура in vitro, споры, гаметофит, споро фит Lyudmila A. Shelikhan e-mail: solecito91@mail.ru Amur Branch of the Botanical Garden-Institute FEB RAS, Blagoveshchensk, Russia Manuscript received: 10.10.2019 Review completed: 22.12.2019 Accepted for publication: 15.01.2020 Published online: 26.02.2020 Lyudmila A. Shelikhan In vitro culture of the rare fern Polystichum craspedosorum (Maxim.) Diels. Polystichum craspedosorum (Max.) Diels is a fern species belonging to the family Dryopteridaceae. The species is dist ri buted in East Asia: China, Japan, Korea, and the Russian Far East. This fern grows on the rivers banks and creeks, shady rocks and large stones of limestone. The species has been listed in the Red Data Books of the Jewish Auto nomous Region (2006) and Khabarovsk Territory (2008). The influence of human activities and the decline of habitats lead to the decrease in the number the fern in nature (Kreschenok & Khrapko 2018). In Amur Province, the species was first discovered in 2011 in the Bureya river valley of the Bureysky district (Starchenko & Darman 2012). A significant part of the P. craspedosorum population area is currently flooded by the reservoir of the Lower Bureyskaya hydro power plant in 2017. Earlier this year, P. cras pe dosorum was included in the Red List of Threa te ned Species of Amur Province. Therefore, it is of great im portance to develop effective procedures for the fern spe cies pro pagation and conservation. Propagation of P. craspedosorum from spores has been in vestigated f","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67434684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Invasive plants in flora of the Russian Far East: the checklist and comments","authors":"Y. Vinogradova, E. V. Aistova, L. A. Antonova, O. Chernyagina, E. A. Chubar, G. F. Darman, E. Devyatova, M. G. Khoreva, Olga V. Коtenko, E. A. Marchuk, E. Nikolin, S. Prokopenko, T. Rubtsova, V. V. Sheiko, E. Kudryavtseva, P. Krestov, Ecology problems Feb Ras, Botanical garden-institute Feb Ras","doi":"10.17581/bp.2020.09107","DOIUrl":"https://doi.org/10.17581/bp.2020.09107","url":null,"abstract":"The paper presents a checklist of the species invading the natural phytocenoses of the Far Eastern Federal District of Russia (FEFD) that includes 40.6 % of the state territory. It summarizes original data on distribution, habitats and inva sive­ ness status (IS) of 116 alien species belonging to 99 genera of 32 families. Eigh­ teen species are only beginning to invade natural cenoses and have IS 3; 76 species intensively invade natural cenoses and are listed in the group with IS 2. Trans­ former are represented by 22 species with IS 1, of which Ambrosia arte misiifolia, Bidens frondosa, Solidago canadensis, Impatiens glandulifera and Hordeum juba tum are most widely distributed. A very strong heterogeneity of the soil and cli mate conditions accounts for a considerable disparity in the list of alien species between various territorial districts of the FEFD. Many species that actively co lo nize southern districts do not occur in the north, or only individual plants of them are reported. The article is a step towards the preparation of the Black Book of the Russian Far East flora and the basis for making decision on prevention the economic and environmental damage of the natural biodiversity of the region. K e y w o r d s : alien species, invasion, Far Eastern Federal District, transformers","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67434457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validation of two varieties of Oxytropis tragacanthoides (Fabaceae) from Southern Siberia","authors":"D. Krivenko, I. Tatanov, I. Belyaeva, Western Baikal Protected Areas, K. Gardens","doi":"10.17581/bp.2020.09111","DOIUrl":"https://doi.org/10.17581/bp.2020.09111","url":null,"abstract":"K e y w o r d s : Oxytropis tragacanthoides, Fabaceae, new varieties, nomenclature, taxonomy, Russia, Mongolia, Southern Siberia Р Е З Ю М Е Кривенко Д.А., Татанов И.В., Беляева И.В. Валидизация двух разновидностей Oxytropis tragacanthoides (Fabaceae) из Южной Сибири. Действительно обнародованы две разновидности Oxytropis tragacanthoides Fisch. ex DC.: var. parviflora Polozhij ex Krivenko, var. nova и var. glabra Peschkova ex Krivenko, var. nova., в соответствии с Международным кодексом номенклатуры водорослей, грибов и растений (Шэньчжэньский кодекс). Для каждой новой разновидности приводятся описание, иллюстрация голотипа, распространение и отличие от Oxytropis tragacanthoides var. tragacanthoides. Ключевые слова: Oxytropis tragacanthoides, Fabaceae, новые разновидности, номен­ кла тура, таксономия, Россия, Монголия, Южная Сибирь Denis A. Krivenko1,2,3* e-mail: krivenko.irk@gmail.com Ivan V. Tatanov4 e-mail: tatanov@binran.ru Irina V. Belyaeva5,6 e-mail: i.belyaeva@kew.org 1 Siberian Institute of Plant Physiology & Biochemistry SB RAS, Irkutsk, Russia 2 Western Baikal Protected Areas, Irkutsk, Russia 3 National Research Tomsk State University, Tomsk, Russia 4 Komarov Botanical Institute RAS, St. Petersburg, Russia 5 Royal Botanic Gardens Kew, Richmond, United Kingdom 6 Botanic Garden UB RAS, Yekaterinburg, Russia * corresponding author Manuscript received: 25.11.2019 Review completed: 19.04.2020 Accepted for publication: 23.04.2020 Published online: 25.04.2020 Denis A. Krivenko1,2,3*, Ivan V. Tatanov4 & Irina V. Belyaeva5,6 Validation of two varieties of Oxytropis tragacanthoides (Fabaceae) from Southern Siberia The genus Oxytropis DC. was established in 1802 (Fabaceae, seu Leguminosae; Faboideae ≡ Papilionoideae; Galegeae; Astragalinae) as one of the largest genera in Faba ceae. The genus includes about 400 species (Malyshev 2008), more than 370 of which are distributed mainly in Nor thern Eurasia (Yakovlev et al. 1996). The centre of diver sity of Oxytropis is Central Asia where 175 species occur which is more than a half of all known species of the genus. This genus is extremely diverse and rich in endemics: 78 spe cies of the total number are endemic to Central Asia (Vassilczenko 1965, Grubov 2003). In Southern Siberia, Oxytropis tragacanthoides Fisch. ex DC. is a representative of the Central Asian section Hystrix Bunge. Here this species has the status of a tertiary relict, the main part of whose range is in Central Asia (Peshkova 2001). Oxytropis tragacanthoides is a very polymorphic species. Three varieties of the species, O. tragacanthoides var. parviflora Polozhij (1965), O. tragacanthoides var. glabra Peschkova (1972), and O. tragacanthoides var. curaica Revuschkin (1990), have been described from the territory of Southern Siberia. However, the first two names were never validly published according to the International Code of Nomenclature for Algae, Fungi, and Plants (Shenzhen Code) (ICN) (Turland et al. 2018). Thus, we validate the","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67434920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New data on Myxomycetes of Lazovsky State Nature Reserve (Far East, Russia)","authors":"V. Gmoshinskiy, F. Bortnikov, A. Matveev, Y. Novozhilov","doi":"10.17581/bp.2020.09105","DOIUrl":"https://doi.org/10.17581/bp.2020.09105","url":null,"abstract":"We summarize all available data on the diversity of myxomycetes of the Lazovsky Nature Reserve and its surroundings, including 494 newly collected specimens. Myxomycete biota of the Lazovsky Nature Reserve consists of 90 species. Fif- teen species were added to the checklist of myxomycetes from Primorye Territory. Two rare species, Stemonitis marjana Y. Yamam. and Clastoderma pachypus Nann.-Bremek., are illustrated and discussed.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67434393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Typification and the current taxonomic status of Laminaria agarum var. аsiaticum and Laminaria boryi (Agaraceae, Laminariales)","authors":"A. Klimova, T. Klochkova, N. Klochkova","doi":"10.17581/bp.2020.09110","DOIUrl":"https://doi.org/10.17581/bp.2020.09110","url":null,"abstract":"K e y w o r d s : lectotypification, taxonomic revision, Kamchatka, Newfoundland, Lami­ naria agarum var. аsiaticum, Laminaria boryi, Laminariales Р Е З Ю М Е Климова А.В., Клочкова Т.А., Клочкова Н.Г. Типификация и совре­ мен ный таксономический статус Laminaria agarum var. asiaticum и La­ mi na ria boryi (Agaraceae, Laminariales). В статье обозначены лектотипы наз ваний Laminaria agarum var. аsiaticum и Laminaria boryi и дано историческое обос нование для их типификации. Эти таксоны были описаны де Ла Пиляи в 1830 г. по материалам, собранным у берегов Камчатки (северо­западная часть Тихого океана) и Ньюфаундленда (северо­западная часть Атлантичес­ кого океана). На основе современных данных по морфологии и распрост­ ра нению представителей рода Agarum в Мировом океане, предложено рас смат ривать указанные выше таксоны в качестве синонимов широко рас­ про страненной в Северном Полушарии ламинариевой водоросли Agarum clathratum subsp. clathratum. Ключевые слова: лектотипификация, таксономическая ревизия, Камчатка, Нью­ фаунд ленд, Laminaria agarum var. аsiaticum, Laminaria boryi, Laminariales Anna V. Klimova* e­mail: annaklimovae@mail.ru Tatyana A. Klochkova e­mail: tatyana_algae@mail.ru Nina G. Klochkova e­mail: ninakl@mail.ru Kamchatka State Technical University, Petropavlovsk­Kamchatskу, Russia * corresponding author Manuscript received: 18.02.2020 Review completed: 15.04.2020 Accepted for publication: 20.04.2020 Published online: 23.04.2020 Anna V. Klimova*, Tatyana A. Klochkova & Nina G. Klochkova Typification and the current taxonomic status of Laminaria agarum var. аsiaticum and Laminaria boryi (Agaraceae, Laminariales) The first member of the genus Agarum Dumort. was described as Fucus agarum S.G. Gmelin in the second half of the 18th century (Gmelin 1768). Before segregation of the genus Agarum by Dumortier into a single taxon in 1822, its members were designated under different generic names, in clu ding also the genus Laminaria J.V. Lamour. (Agardh 1817). In 1840, species of Agarum and related taxa (viz. Costaria Grev., Thalassiophyllum Postels & Rupr.) were included in the fa mily Agaraceae by Postels & Ruprecht (1840). Species of Agarum are important in sublittoral habitats because they often dominate communities at a depth of 10 to 30 m (Gagnon et al. 2005). As discussed in the present study, Laminaria agarum (S.G. Gme lin) C. Agardh var. аsiaticum Bach.Pyl. and L. boryi Bach.Pyl. show a typical morphology for members of the genus Agarum. Typification of these two names allows cla ri fi­ cation of the taxonomic status of these taxa with subse quent synonymising of them with Agarum clathratum Dumort. Our study is based on an analysis of algological literature (Gmelin 1768, Stackhouse 1816, Agardh 1817, Dumortier 1822, Bory 1826, De la Pylaie 1830, Postels & Ruprecht 1840, Silva 1991, Boo et al. 2011, Kawai et al. 2017). The authors of this paper have examined living populations of Agarum species in the field on the different coasts of","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67435142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Floral ecology, floral visitors and breeding system of Gandharaj lemon (Citrus × limon L. Osbeck)","authors":"U. Layek, Arijit Kundu, P. Karmakar","doi":"10.17581/bp.2020.09208","DOIUrl":"https://doi.org/10.17581/bp.2020.09208","url":null,"abstract":"We studied the floral ecology, floral visitors and breeding system of Citrus × limon in West Bengal, India. We calculated a coefficient of pollination deficit (D) and also estimated the values of ‘relative pollinator service (RPS)’ to determine primary polli nators of the plant species. The cultivar is fully self-compatible and produces protandric hermaphrodite flowers and male flowers with considerable amount of floral rewards. Several insects like honey bees, solitary bees, carpenter bees, flies and butterflies visited the flowers. Among those, primary pollinators were Halictus sp. and Nomia sp., and important secondary pollinators were Apis dorsata and Xylocopa fenestrata. Considering the visitors’ group, the cultivar is principally pollinated by solitary bees. Besides diverse floral visitors, the cultivar showed medium pollination deficit (D = 0.49) and resulting in low fruit-set. Furthermore, premature fruit abortion is also high in all pollination treatments which lead to a low fruit-set of this lemon variety in West Bengal. K e y w o r d s : pollination deficit, relative pollinator service, self-compatible, solitary bee","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67435093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate continentality increases the beta diversity of macrofungal communities","authors":"A. Shiryaev, Ural Branch Ras Animal Ecology","doi":"10.17581/bp.2020.09216","DOIUrl":"https://doi.org/10.17581/bp.2020.09216","url":null,"abstract":"The data on changes in the diversity of the model group of fungi of the middle boreal subzone in Eurasia are summarized. From Finland to Yakutia, with increasing climate continentality, the α- and γ-diversity of fungal communities decreases, but the β-diversity increases 1.7–5 times, which indicates an increase in the spatial isolation of local fungal communities. Similar trends have been found for other high-latitude regions: tundra and forest-tundra.","PeriodicalId":37724,"journal":{"name":"Botanica Pacifica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67435132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}