Lectotypification of Vaucheria orthocarpa (Vaucheriaceae, Xanthophyceae)

The history of the plant cover studies of the Far North in the Komarov Botanical Institute (BIN) and its predecessors dates back to the second third of the XIX century and it is associated with the names of two eminent botanists — A. Schrenk and F. Ruprecht, who in 1837 and 1841 years made their long trips to the north of the European part of Russia. A long break in the study of the Arctic, which came after that, has been resumed within our institute only in the Soviet period. Already before the Great Patriotic war the scientific expeditions were organized both on the European North and on the Asian part of the Arctic up to the eastern borders of the country. In the 1920–1930th the brightest star in the sky of the Russian tundrology – B. N. Gorodkov worked on the vast area fr om the Kola Peninsula up to the Wrangel Island. This vigorous activity resulted in excellent descriptions of plant cover, and the classic, still actively quoted monograph «The vegetation of the tundra zone of the USSR» was published in 1935. In 1930–1931 years a lot of scientists (F. V. Sambuk, A. I. Leskov, K. N. Igoshina, M. N. Avramchik, V. P. Savich, Z. N. Smirnova and others) participated in various botanical expeditions (the Franz Josef Land, the Novaya Zemlya, the Kolguev Isl., the Malozemelskaya tundra, the interior parts of Taymyr Peninsula). The Great Patriotic war had interrupted botanical work in the Arctic. However the numerous expeditions took place as early as in the first post-war years (1946– 1949). At that time, besides mentioned researchers, B. A. Tikhomirov has already participated in these studies. Later (1952) B. A. headed the Sector of North, transformed in 1960 into the Laboratory of the vegetation of Far North. This Laboratory is the exclusive botanical team not only in Russia but throughout the world, which all over its existence was being specialized in comprehensive study of plant cover in the Arctic, coordinating the northern investigations within the whole country. The outstanding achievement, received international recognition, is undoubtedly the multi-volume edition «Arctic Flora of the USSR» (1960–1987), initiated by the eminent botanist A. I. Tolmachev and completed through intense activity by B. A. Yurtsev. This great work, later translated into English, was done during the large-scale floristic studies in different regions of the Asian Arctic fr om the Yamal, Gydan and Taymyr peninsulas in the west to Chukotka in the east. The implementation of annual field work became possible due to the establishment of Polar Expedition, funded by a «separate item» within the budget of the Institute. A period fr om 1966 to 1991 year without exaggeration may be called as «golden age» in the study of vegetation of the Russian Arctic. This was a time when not only numerous research teams carrying out the floristic studies, but up to 3 long-term research stations simultaneously worked in one field season. The durable stationary studies were performed in the Bolshezemelskaya Tundra (Sivaya Maska), on the Taymyr Peninsula (Tareya and Agapa settlements and Ary-Mas forest «island»), Putorana plateau (Kapchuk lake) and Wrangel Island (Somnitelnaya Bay). According to the results of these stationary studies 11 collective Proceedings have been published. Most lasting (1965–1977) and large-scale investigations were biogeocenological studies at the «Tareya» station, wh ere in the period of the International Biological Program the organizational skills by B. A. Tikhomirov collected up to 40 specialists from different branches of biology and ecology. In the years 1972–1991 these works were continued on Taymyr Peninsula at 6 short-term field stations at the latitudinal gradient from southern tundra up to polar deserts, which became the basis for a comprehensive study of zonation display in the living cover. As a result of extensive studies by the method of concrete floras the data on the composition of vascular plants for nearly 170 sites in all latitude-zonal stripes of Asian North from Yamal up to Chukotka has been obtained. At present these data are the fundamental basis for work on the detailed floristic subdivisions that was started by the great trio — B. A. Yurtsev, A. I. Tolmachev and O. V. Rebristaya in their famous paper «Arctic floristic region» (1978). The end of the last and the beginning of this century became a time of summing up the study of arctic flora and vegetation. The checklists of fungi, lichens, mosses and liverworts of Russian Arctic were compiled; the monographs on the vascular flora of Chukotka and Yamal as well as the book on mosses of Chukotka were published. The electronic version of Pan-Arctic flora and the Circumpolar vegetation map of the Arctic were prepared with the active participation of BIN florists and geobotanists. In the last ten years the obvious lack of information on the diversity of plant communities at the vast arctic territory is being compensated by publishing the numerous papers on syntaxonomy. The intensity of field works, declined sharply in the early 1990s, still continues, albeit in smaller scale. For the first time in the history of the study of the Far North nature the recurrent botanical observations were made in few sites wh ere many-sided studies were performed in the past. This allows assessing the dynamics in the flora and vegetation in situ. The changes in plant cover are well recorded by the earth’s surface remote sensing using multispectral satellite imagery. The analysis of image series allows us to monitor changes in intra-landscape vegetation patterns as well as some technological and cryogenic transformations. In the development of the concepts of classical Arctic and Antarctic geobotanical subdivision suggested by V. D. Aleksandrova for higher system units, the work on the designation of the lower units is being intensified presently. An assessment of current environmental safety of Arctic ecosystems in the areas with heavy anthropogenic load caused by oil and gas production will be the most required in the nearest future. However, there are still large areas within the vast Arctic territories wh ere classic fundamental studies are necessary to close the «white spots» in our knowledge of plant cover. The growing geopolitical interest to the Arctic region gives the hope for the revival of full-scale researches, which are impossible without adequate funding. More than one and a half century of brilliant botanical investigations in the Arctic were carried out by our famous predecessors. This fact allows us to look optimistically for the future and expect the growth of the scientific activities in the Far North.

TAXONVolume 47, Issue 1 p. 193-195 Proposal to Amend the Code (35–36) Two proposals to amend Rec. 60C.1, relating to the orthography of epithets formed from feminine surnames S. G. Zhilin, S. G. Zhilin Komarov Botanical Institute, Russian Academy of Sciences, 197376 St Petersburg, RussiaSearch for more papers by this authorC. Jeffrey, C. Jeffrey Komarov Botanical Institute, Russian Academy of Sciences, 197376 St Petersburg, RussiaSearch for more papers by this authorA. V. Hvalj, A. V. Hvalj Komarov Botanical Institute, Russian Academy of Sciences, 197376 St Petersburg, RussiaSearch for more papers by this authorS. A. Takhtajan, S. A. Takhtajan Philological Faculty, St Petersburg State University, 199034 St Petersburg, RussiaSearch for more papers by this author S. G. Zhilin, S. G. Zhilin Komarov Botanical Institute, Russian Academy of Sciences, 197376 St Petersburg, RussiaSearch for more papers by this authorC. Jeffrey, C. Jeffrey Komarov Botanical Institute, Russian Academy of Sciences, 197376 St Petersburg, RussiaSearch for more papers by this authorA. V. Hvalj, A. V. Hvalj Komarov Botanical Institute, Russian Academy of Sciences, 197376 St Petersburg, RussiaSearch for more papers by this authorS. A. Takhtajan, S. A. Takhtajan Philological Faculty, St Petersburg State University, 199034 St Petersburg, RussiaSearch for more papers by this author First published: 01 February 1998 https://doi.org/10.2307/1224045AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume47, Issue1February 1998Pages 193-195 RelatedInformation

Background.Learning about morphological and biological features of pollen is very important to make correct estimations of plant productivity and breeding efficiency.Materials and methods. The viability of black currant pollen was analyzed in 2019 at the Laboratory for Long-Term Storage of Plant Genetic Resources, N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR). Eleven black currant cultivars of various ecogeographic and genetic origin maintained at Pushkin and Pavlovsk Laboratories of VIR served as the material for the research. Pollen viability was tested on an artificial medium with 10% sucrose and 0.8% agar. Morphological studies were carried out using light and confocal laser scanning microscopy at the Palynology Laboratory and the Core Centrum of Cell and Molecular Technologies in Plant Science housed by the Komarov Botanical Institute (BIN).Results and conclusion. The prevailing adverse weather conditions in 2019 produced a negative impact on the process of male generative structure formation. The level of pollen viability, depending on the cultivar, ranged from 17.98 to 58.60%. After exposure to liquid nitrogen (–196°C) for 6 months, the number of germinated pollen grains increased 1.1 to 3.2 times in all the studied cultivars, except one (‘Pozdnyaya poslevoennaya’, k-7652). A palynomorphological study revealed that reduced pollen viability in some cultivars (‘Krasnoyarskaya 1018’, k-7607; ‘Tsema’, k-25900; ‘Pozdnyaya poslevoennaya’, k-7652) was associated with morphological deviations in the sporoderm structure (small pollen grains, exine thickening and formation of verrucate mesoporium surfaces). A low positive correlation was observed between the level of pollen viability and the diameters of the pore (r = 0.43) and pollen grain (r = 0.27). An insignificant negative correlation was apparent between the level of viability and the exine thickness (r = –0.33).

The Peter the Great Botanical Garden of the V. L. Komarov Botanical Institute (BIN), Russian Academy of Sciences, is one of the leading centers of arboriculture in the North-Western Russia. A majority of representatives of the genus Ribes L. are winter-hardy and very ornamental. There are 16 species and 2 forms in the Garden's modern collection. All taxa, except R. biebersteinii Berl. ex DC., produce flowers and fruits. There are certain samples of considerable age, up to 100 years old. In recent years, in the early 21st century, the collection has continued to be replenished with new species and samples. There are a number of species and forms promising for urban landscaping in St. Petersburg and other cities of the North-Western Russia, and for wider distribution outside botanic gardens: Ribes diacantha Pall., R. sachalinense (Fr. Schmidt) Nakai, R. sanguineum Pursh, etc. Many species are valuable berry- producing shrubs, honey-yielding, medicinal and ornamental plants. They are suitable for urban landscape architecture, city parks, or afforestation. Besides, they are of special interest for planting in stony plots and rocky gardens. There are considerable reserves to replenish the collection of the Peter the Great Botanical Garden both in the contexts of repeated (R. fasciculatum Siebold et Zucc.) or primary introduction of Ribes taxa (R. menziesii Pursh, R. ambiguum Maxim. etc.). There are new species in the arboreal nursery of the Botanic Garden, such as R. atropurpureum C.A. Mey., which may occupy their permanent place in the Garden in the coming years. The present article is based on the data of the 2017 inventory, and has been prepared within the framework of the forthcoming publication Annotated Catalogue of the Outdoor Collection of Living Plants at the Peter the Great Botanical Garden.

Aguirre-C., J. & J. O. Rangel-Ch. 2007. Amenazas a la conservacion de las especies de musgos y liquenes en Colombia—una aproximacion inicial. Threats to conservation of mosses and lichens from Colombia—a preliminary approach. Caldasia 29(2): 235–262. [Detailed look at hundreds of spp. and their occurrence in Colombia using IUCN methodology. ‘‘There are 841 species in 201 genera and 64 families with threatened species in almost all natural regions and also in the mountainous system.’’ Authors tally 432 spp. as Critically Endangered (CR) and 180 as Endangered (EN). In Spanish with English abstract.] Ahti, T. 2005. Problems in taxonomy of boreal and Arctic reindeer lichens (Cladonia group Cladina). Pages 44–47. In Fungi in Natural and Anthropogenic Ecosystems. Proceedings of the International Conference Dedicated to the Centenary of the Beginning by Professor A. B. Bondartsev his Research at the V. L. Komarov Botanical Institute, RAS, 24–28 April, 2005, St. Petersburg. Volume 1. Russian Academy of Sciences, V. L. Komarov Botanical Institute, St. Petersburg. [General discussion of distribution, chemical strains and current literature concepts.] ———. 2006. The role of foreign collectors for the floristic studies of lichens in Russia. Pages 37–40. In Lichen Flora of Russia: State and Perspective of Exploration. Proceedings of the International Conference Dedicated to the 120 Anniversary of V. P. Savicz, St. Petersburg, October 24–27, 2006. Russian Academy of Sciences, Komarov Botanical Institute, St. Petersburg. [General outline of various collectors and their activities and collections.] ———. 2007. Kalevi Matias Takala, 4 October 1929–29 March 2005. International Lichenological Newsletter 40(1): 14. [Short note on his career and collections.] Akdemir, B., G. Cobanoglu & D. Gezginci. 2008. Gol ve nehir likenleri. Lake and river lichens. Turk Liken Toplulugu Bulteni 5–6: 11–14. [Short review with 6 color photographs.] Amtoft, A., F. Lutzoni & J. Miadlikowska. 2008. Dermatocarpon (Verrucariaceae) in the Ozark Highlands, North America. The Bryologist 111(1): 1–40. [Based on morphological, ecological and molecular studies, the authors recognize 8 taxa; key. New: D. arenosaxi Amtoft sp. nov., D. dolomiticum Amtoft sp. nov., D. luridum var. xerophilum Amtoft var. nov. & D. multifolium Amtoft sp. nov.] Aptroot, A. 2008. Additional lichen records from Australia 65. Pyrenulaceae from Lord Howe Island, Norfolk Island and the Cocos (Keeling) Islands. Australasian Lichenology 62: 6–8. [New for Norfolk Island (14) and Lord Howe Island (11).] ——— & F. Bungartz. 2007. The lichen genus Ramalina on the Galapagos. Lichenologist 36(6): 519–542. [15 spp. with many new distribution records; key. New: R. darwiniana sp. nov., R. darwiniana var. curvida Aptroot var. nov., R. fragilis sp. nov., R. furcellangulida Aptroot sp. nov. & R. polyforma Aptroot sp. nov. The new spp. are considered endemic to the Galapagos Islands.] ———, R. Lucking, H. J. M. Sipman, L. Umana & J. L. Chaves. 2008. Pyrenocarpous lichens with bitunicate asci: a first assessment of the lichen biodiversity inventory in Costa Rica. Bibliotheca Lichenologica 97: 1–162. [181 spp., many new to Costa Rica, and a key to the genera and species. Many new synonyms are proposed. New: Celotheliaceae Lucking, Aptroot & Sipman fam. nov., Trypetheliales Lucking, Aptroot & Spiman ord. nov., Architrypethelium hyalinum Aptroot sp. nov., A. nitens (Fee) Aptroot comb. nov., Aspidothelium glabrum Lucking, Aptroot & Sipman sp. nov., Astrothelium crassum (Fee) Aptroot comb. nov., A. intermedium Aptroot & Lucking sp. nov., Bathelium feei * The cumulative database for this series is available in searchable form on the World Wide Web at http://www.nhm.uio.no/botanisk/bot-mus/ lav/sok_rll.htm. I owe special thanks to Bill Buck for providing copies of papers by other authors, which were otherwise unavailable to me, and to the cooperating authors who send reprints or electronic versions of their works to me for inclusion in this series.

Vera Antonovna Martynenko (17.02.1936–06.01.2018) — famous specialist in the field of studying vascular plant flora and vegetation of the Far North, the Honored worker of the Komi Republic (2006), The Komi Republic State Scientific Award winner (2000). She was born in the town Likhoslavl of the Kali­nin (Tver) region. In 1959, Vera Antonovna graduated from the faculty of soil and biology of the Leningrad State University and then moved to the Komi Branch of USSR Academy of Science (Syktyvkar). From 1969 to 1973 she passed correspondence postgraduate courses of the Komi Branch of USSR Academy of ­Science. In 1974, she received the degree of candidate of biology (PhD) by the theme «Comparative analysis of the boreal flora at the Northeast European USSR» in the Botanical Institute (St. Petersburg). In 1996, Vera Antonovna received the degree of doctor of biology in the Institute of plant and animal ecology (Ekaterinburg) «Flora of the northern and mid subzones of the taiga of the European North-East». The study and conservation of species and coenotical diversity of the plant world, namely the vascular plants flora of the Komi Republic and revealing its transformation under the anthropogenic influence, was in the field of V. A. Martynenko’ scientific interests. She made great contribution to the study of the Komi Republic meadow flora and the pool of medi­cinal plants. She performed inventorying and mapping the meadows of several agricultural enterprises of the Republic, revealed the species composition and places for harvesting medicinal plants and studied their productivity in the natural flora of the boreal zone. The results of her long-term studies were used for making the NPA system and the Red Book of the Komi Republic (1998 and 2009). Vera Antonovna participated in the research of the influence of placer gold mining and oil development on the natural ecosystems of the North, and developed the method of long-term monitoring of plant cover. Results of these works are of high practical value. V. A. Martynenko is an author and coauthor of more than 130 scientific publications. The most important jnes are «Flora of Northeast European USSR» (1974, 1976, and 1977), «Floristic composition of fodder lands of the Northeast Europe» (1989), «The forests of the Komi Republic» (1999), «Forestry of forest resources of the Komi Republic» (2000), «The list of flora of the Yugyd va national park» (2003), «The guide for vascular plants of the Syktyvkar and its vicinities» (2005), «Vascular plants of the Komi Republic» (2008), and «Resources of the natural flora of the Komi Republic» (2014). She also was an author of «Encyclopedia of the Komi Republic» (1997, 1999, and 2000), «Historical and cultural atlas of the Komi Republic» (1997), «Atlas of the Komi Republic» (2001, 2011). V. A. Martynenko made a great contribution to the development of the botanical investigations in the North. Since 1982, during more than 10 years, she was the head of the Department of the Institute of Biology. Three Ph. D. theses have been completed under her leadership. Many years, she worked actively in the Dissertation Council of the Institute of biology Komi Scientific Centre UrB RAS. The death of Vera Antonovna Martynenko is a heavy and irretrievable loss for the staff of the Institute of Biology. The memory of Vera Antonovna will live in her numerous scientific works, the hearts of students and colleagues.

The imago and nymph of Lestagella penicillata are redescribed based on historic specimens and new material from Table Mountain slopes (Skeleton Gorge and Window Stream), Western Cape, South Africa. A male from Barnard's syntype series is designated as the lectotype. Wear-and-tear of mouthparts, particularly the mandibles, has led to errors in identification of diagnostic characters for the nymphs in earlier publications. Previous descriptions of the mandibles being atrophied, in terms of dentition, are erroneous. The generic diagnosis of Lestagella is modified to account for these errors and intraspecific variability. Adults are distinguished from other Teloganodidae by the combination of a short, detached iMP vein on the forewing, three caudal filaments and gill socket vestiges on segments II - IV. Nymphs are distinguished from other Teloganodidae by a conspicuous head fringe, lamellate gills on abdominal segments II-IV and a dorso-ventrally flattened body.

BackgroundThe Central Siberian Botanical Garden of the Siberian Branch of the Russian Academy of Sciences (CSBG SB RAS) is the largest botanical institution in the Asian part of Russia. Founded in 1946, CSBG SB RAS is historically a consortium of two herbarium collections with their own acronyms (NS and NSK) and registration in the Index Herbariorum (Thiers 2020).At present the NS+NSK collections contain about 800,000 herbarium specimens comprising vascular plants (680,000), mosses (25,000), lichens (80,000) and fungi (15,000) gathered, not only in Siberia, but also in the European part of Russia and other parts of the Eurasian and American continents. CSBG SB RAS has the third largest collection in Russia after the Komarov Botanical Institute of RAS (LE) and Moscow State University (MW) collections.The dataset consists of 5,384 records of digitised herbarium specimens of vascular plants belonging to 111 families, collected since the 19th century in 54 administrative regions from the European part of Russia and kept in NS+NSK collections. Herbarium specimens were digitised using two special scanners, both ObjectScan 1600, according to international standards, at 600 dpi, with a barcode, 24-colour scale and spatial scale bar and placed into the CSBG SB RAS Digital Herbarium. For each specimen, the species name, locality, collection date, collector, ecology and revision label are recorded. More than 94% of the records have coordinates that fall within the area of European Russia, west of the Ural Mountains.New informationA total of 5,384 records of vascular plant occurrences with 94.8% geolocations in the territory of the European Russia West of the Ural Mountains were entered.

The village of Ugolnye Kopi (Anadyrsky District, Chukotka Autonomous Area, Russia) is located in the left-bank estuary part of the Anadyr River, on the shore of the Anadyr Firth, overlooking the Bering Sea. Despite a relatively low latitude (64°44’N), more suitable for the development of boreal vegetation, the effect of cold-sea air masses on the environments of this locality forms vegetation more typical of the Subarctic tundra subzone. Penetration of adventive plant species, human satellites, into this area is very limited. There has been no previous information about the composition of the synanthropic flora at Ugolnye Kopi Village. Some data concerning adventive plants in the vicinity of the town of Anadyr were available in the review published by N. A. Sekretareva and A. A. Korobkov from the Komarov Botanical Institute. A survey conducted in August 2021 resulted in identifying an adventive component of the flora in the vicinity of Ugolnye Kopi, consisting of 44 vascular plant species. A key role in the village’s spontaneous landscaping has been played by 18 species of apophytes that arrived and settled there from the surrounding vegetation. Seven more apophytic species came to the village from more distant places of Chukotka. The usual synanthropic component, long ago acclimatized in Chukotka, is represented by 7 species: Hordeum jubatum, Chenopodium prostratum, Descurainia sophioides, Erysimum boreale, E. cheiranthoides, Taraxacum ceratophorum, and T. officinale s.l. Invasive species alien to this area are Elytrigia repens, Puccinellia borealis, Oberna behen, Stellaria media, Boechera pendula, Capsella bursa-pastoris, Trifolium repens, Lappula anisacantha, L. heteracantha, Lepidotheca suaveolens, Senecio dubitabilis, and S. vulgaris.

The Komarov Botanical Institute, 250 Years of Russian Research.

Cynomorium Linnaeus (1753: 970) is the only member of the family Cynomoriaceae Endl. ex Lind. (APG 2016, López-Sáez & Villar 2002, Christenhusz & Byng 2016), and contains only two species of root holoparasitic plants (obligate parasite) (see e.g., Léonard 1986), C. coccineum Linnaeus (1753: 970) which is native to the North African, South European and Near Eastern deserts and subdeserts (Webb 1964, Pignatti 1982, Villar 1997, López-Sáez & Villar 2002, Fennane 2007), and C. songaricum Ruprecht (1869: 73) from Central Asia (Léonard 1986, Webb 1964, Villar 1997, Chen & Funston 2007). A lectotype for this name was designated by Gorshkova (1949: 502) as “Type in Leningrad” (here corrected to lectotype according to Art. 9.9 of the ICN, McNeill et al. 2012), based on a specimen collected in Valley of Koshkar River, in Central Asia, which was apparently kept at LE (V.L. Komarov Botanical Institute, Saint Petersburg, Russia). However, unfortunately no specimens of C. songaricum annotated as type were found in the herbarium LE, though further search is required (Irina Illarionova, pers. comm.).

В статье впервые публикуются сведения о типовых образцах названий 12 таксонов рода Mertensia (Boraginaceae), которые хранятся в секторе Cибири и Дальнего Востока Гербария Ботанического института им. В. Л. Комарова (LE), в том числе о четырех голотипах, семи лектотипах (Lithospermum rivulare Turcz., Mertensia jenisseensis Popov, M. longistyla Ledeb., M. nivalis Kom., Pulmonaria pilosa Cham., P. stylosa Fisch., Steenhammera serrulata Turcz. – все обозначены в настоящей статье) и шести изолектотипах, одном обозначенном в настоящей статье эпитипе (Mertensia jenisseensis Popov) и двух изоэпитипах, пяти синтипах. Для каждого образца указана категория, приведена цитата оригинальной этикетки и данные протолога. В примечаниях даются краткие характеристики образцов и обосновывается их отнесение к той или иной категории типа.

Статья содержит данные о типовом материале 109 таксонов (58 видов, 9 подвидов, 28 разновидностей, 6 форм, 8 морфа-дериват) рода Viola L. семейства фиалковые (Violaceae Batsch), хранящемся в секторе Сибири и Дальнего Востока Гербария Ботанического института им. В. Л. Комарова РАН (LE). Приведены сведения о типах как названий, принятых в «Определителе сосудистых растений советского Дальнего Востока» (Bezdeleva, 1985) и во «Флоре Сибири» (Zuev, 1996), так и названий, упомянутых в них в качестве синонимов, а также целого ряда форм и разновидностей, не упоминающихся в них, но описанных из Сибири и российского Дальнего Востока. Обозначены лектотипы для 29 названий в роде Viola. Также упомянуты 4 таксона (2 вида, разновидность и 8 морфа-дериват), материал по которым в LE не обнаружен.

Information on the type specimens of 12 species published as part of the genus Brassica, stored in the general sector of the Herbarium of Higher Plants department of the V. L. Komarov Botanical Institute of the Russian Academy of Sciences, is presented. One new combination in the composition of the genus Guenthera is proposed: G. deflexa (Boiss.) V. I. Dorof. var. auranthiaca (Bornm.) V. I. Dorof., comb. nov. Copy Translate Copy Translate

Data on type material of 55 taxa of the family Crassulaceae H. St.-Hil. (38 species, 1 subspecies, 14 varieties and 2 form of 6 genera) and 1 species of the fam. Penthoraceae Rydb. ex Britton kept in the Herbarium of the Komarov Botanical Institute (LE) are summarized in the paper. Information is given about types of both the names accepted in the “Vascular plants of the Soviet Far East” and “Flora of Siberia” and the names treated as synonyms.The collection includes type specimens for the names described by various authors. Among them, most types of E. Regel (1815–1892), K. F. Ledebour (1785–1851), N. S. Turchaninow (1796–1863) V. L. Komarov (1869–1945), A. G. Borisova (1903–1970), and some others. The oldest type specimens collected at the end of the eighteenth century belong to two taxa described by P. S. Pallas (1741–1811) – Sedum quadrifidum Pall. and Cotyledon malacophylla Pall. The data on type specimens is according to the scheme adopted for articles of this type, previously published in “Turczaninowia”. Lectotypes for 21 species, varieties and form names were chosen here. For a number of names lectotypes were selected and published previously. New combination Orostachys spinosa (L.) Sweet var. erubescens (Maxim.) Byalt, comb. nov. based on the name Cotyledon erubescens Maxim. is given.