DOCSLIB.ORG

A Late Miocene Leaf Assemblage from Vrysses, Western Crete, Greece, and Its Paleoenvironmental and Paleoclimatic Interpretation

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A Late Miocene Leaf Assemblage from Vrysses, Western Crete, Greece, and Its Paleoenvironmental and Paleoclimatic Interpretation A late Miocene leaf assemblage from Vrysses, western Crete, Greece, and its paleoenvironmental and paleoclimatic interpretation Giannis ZIDIANAKIS Department of Biology, University of Crete, Voutes, GR-71305 Irakleio, Crete (Greece) [email protected] Barbara A. R. MOHR Institute of Palaeontology, Museum of Natural History, Invalidenstr. 43, D-10115 Berlin (Germany) [email protected] Charalampos FASSOULAS Natural History Museum, University of Crete, GR-71409 Irakleio, Crete (Greece) [email protected] Zidianakis G., Mohr B. A. R. & Fassoulas C. 2007. — A late Miocene leaf assemblage from Vrysses, western Crete, Greece, and its paleoenvironmental and paleoclimatic interpretation. Geodiversitas 29 (3) : 351-377. ABSTRACT A new leaf impression fl ora is described from late Miocene marly sediments (6-7.5 Ma) near the village of Vrysses in northwestern Crete, Greece. Th e stud- ied plant remains represent more than 30 taxa of conifers and angiosperms. Deciduous broad-leaved woody plants such as Acer pseudomonspessulanum, 5-lobed Acer, Ziziphus ziziphoides, “Parrotia” pristina, Populus tremula, Salix sp. and Juglandaceae, prevail in this leaf assemblage. Th ese plants are associated with sclerophyllous, evergreen taxa (Quercus mediterranea, Quercus sp., Buxus pliocenica and Pinus sp.) and a few subtropical Miocene elements (Daphnogene KEY WORDS Late Miocene, polymorpha, Tetraclinis sp.). A regional vegetation reconstruction is developed Crete, based on the ecological affi nities of the nearest living relatives. Th e climate Greece, conditions are deduced from the physiognomy and composition of the Vrysses leaves, paleovegetation, plant assemblage. Th ey indicate a warm-humid climate possibly with a weakly paleoclimate. developed dry period during the summer months. GEODIVERSITAS • 2007 • 29 (3) © Publications Scientifi ques du Muséum national d’Histoire naturelle, Paris. www.geodiversitas.com 351 Zidianakis G. et al. RÉSUMÉ Une paléofl ore du Miocène supérieur de Vrysses, Crète occidentale (Grèce) et son interprétation paléoenvironnementale et paléoclimatique. Une nouvelle fl ore constituée d’empreintes foliaires a été découverte dans des sédiments du Miocène supérieur (6-7,5 Ma) près du village de Vrysses au nord de la Crète (Grèce). L’étude des restes de plantes concerne plus de 30 taxa de conifères et d’angiospermes. Des arbres feuillus décidus, tels qu’Acer pseudomons- pessulanum, Acer à cinq lobes, Ziziphus ziziphoides, “Parrotia” pristina, Populus tremula, Salix sp. et Juglandaceae, dominent cette paléofl ore. Ces plantes sont associées à des taxa sclérophylles (Quercus mediterranea, Quercus sp., Buxus plioce- nica et Pinus sp.) et à quelques éléments subtropicaux du Miocène (Daphno gene MOTS CLÉS Miocène supérieur, polymorpha, Tetraclinis sp.). Un modèle de végétation régionale est développé Crète, sur la base des affi nités écologiques des plus proches parents vivants. Les condi- Grèce, tions climatiques sont déduites de la physiognomie et de la composition de la feuilles, paléovégétation, paléofl ore de Vrysses et elles indiquent la présence d’un climat chaud et humide paléoclimat. avec peut-être une légère période sèche pendant les mois d’été. INTRODUCTION of similar age (Sachse et al. 1999) indicating pos- sibly a seasonal climate with a (weakly developed) During the last decades progress had been made in summer drought. understanding Late Neogene eastern Mediterranean In western Crete plant megafossils have never vegetation and climate. For many years the results been collected systematically so far. Meulenkamp of paleoclimatic studies were highly controversial et al. (1979) were the fi rst who recognized plant and often hampered by the lack of precise dating of macro-fossils in the laminated marls of the Vrysses plant bearing strata. Th erefore paleoclimatic recon- basin. During the last decades more fossils came structions for Miocene climates diff ered, ranging to light in small quarries where Neogene limestone from humid climates with maximum precipitation is worked for building purposes. In order to study during summer (e.g., Gregor 1990) to strongly Neogene vegetation and climate of this part of the seasonal climates with minimum precipitation island, a survey on Neogene sedimentary rocks all during summer (e.g., Palamarev 1989). Recent over western Crete was undertaken (Zidianakis climate reconstructions for the European Terti- 2002) for new outcrops containing plant macro- ary using the Coexistence Approach revealed that remains. spatial temperature gradients became more strongly Although stratigraphy and fauna of Cretan Neo- developed during the early late Miocene and must gene strata are well studied (Meulenkamp et al. 1979; have become even more diff erentiated towards the Kuss 1980; Dermitzakis & Papanikolaou 1981; Pe- end of the Miocene (Bruch et al. 2004). Studies on ters 1985; Frydas & Keupp 1996; ten Veen 1998), a well dated late Tortonian plant assemblage from vegetation studies are rare and mainly focused on eastern Crete near the village Makrilia confi rmed eastern Crete (Mohr et al. 1991; Sachse & Mohr that besides laurophyllous and deciduous taxa, 1996; Sachse 1997; Sachse et al. 1999). the sclerophyllous Mediterranean component was Th e discovery and study of the Vrysses plant as- more pronounced than in central European fl oras semblage off ers the opportunity for a comparison 352 GEODIVERSITAS • 2007 • 29 (3) Miocene leaf assemblage from Vrysses, western Crete N Settlements Road network National road Asphalt roads 4 km Fossiliferous area FIG. 1. — Generalized map of the fossiliferous locations in Vrysses basin, western Crete (Greece). with the slightly older eastern Cretan Makrilia area (Fig. 1). Th e material was collected at two plant assemblage, and thus enables us to reconstruct fossiliferous outcrops, two quarries located 150 m temporal and spatial diff erences of the Cretan paleo- from each other, just a few hundred meters south vegetation and climate change and more importantly of Vrysses. to shed light on the Miocene paleoenvironment of Th e island Crete is located in the southernmost southern Greece and the eastern Mediterranean part of the Helenides orogene and has experienced region. complicated geologic processes throughout the Neogene (Fassoulas 2001). Th ick sedimentary units comprise the basement rocks, while large, tectoni- GEOLOGICAL SETTING cally controlled basins occur all over the island. Th e study area crops out at the eastern part of an Th e macrofl ora was discovered near the village elongated, east-west trending Neogene basin, the of Vrysses, located 15 km southeast of the town so-called Vrysses-Kalives basin. It is an area of low of Chania close to the road leading to the Sfakia relief that is gradually passing southwards to the GEODIVERSITAS • 2007 • 29 (3) 353 Zidianakis G. et al. Lefka Ori Mountains, the largest mountain area of component. Th e M4 horizon comprises a whitish the island with many summits over 2000 m. Th e sandy to marly limestone of an average thickness basin develops in a graben structure inclined towards up to 1 m. Th is horizon is full of mollusks, mainly the sea that fragments the same Mesozoic carbonate gastropods and ostracodes and has a moderate rocks that build the Lefka Ori Mountains (Vidakis competency and hardness. Finally, the uppermost et al. 1983). horizon (M5) is formed by a stratifi ed white sandy Th e Vrysses Formation, that rests unconformably limestone that is partly covered by soil. A few leaf on Mesozoic crystalline limestone and dolomites fossils have been found in this horizon too. of the Plattenkalk and Tripali units (Vidakis et al. Paleogeographic studies of Crete (Meulenkamp et 1983), covers most of the area around Vrysses. Ac- al. 1979; Dermitzakis & Papanikolaou 1981) suggest cording to Meulenkamp et al. (1979), the Vrysses that during the Miocene, Crete was fragmented into Formation is mainly composed of bioclastic and smaller and larger islands, some of them located at reefal, light-colored limestones and alternations of the present mountain areas. Th e Lefka Ori area was laminated shallow water, white to grayish marls. A at that times a hilly area, surrounded by shallow rich fauna represented by molluscs (mainly Ostrea) marine, lagoonal and delta environments. During occurs in the limestone beds, whereas molluscs, the late Miocene tectonic activity formed an elon- echinoderms and remnants of fi sh and plants are gated marine realm at the northern fl anks of the found in the marls. Based on planktonic foraminifera Lefka Ori Mountains that was extending eastwards Meulenkamp et al. (1979) correlated the formation to the Rethimnon area and was characterized by to the Globorotalia conomiozea biozone which traces shallow bays, reefs and small islands. During this the Tortonian/Messinian boundary in the Medi- period and prior to the Messinian salinity crisis the terranean basin (Negri & Villa 2000). According light-colored limestone and marls of the Vrysses to the mammal bio-stratigraphy the formation is Formation were deposited. placed between the MN12 and MN13 biozones. Th e age of the formation is thus regarded to be late Tortonian-Messinian (6-7.5 ma). In lignite layers MATERIAL AND METHODS of the Vrysses basin of about the same age, Benda et al. (1968) found fragments of a mastodon tooth. More than 250 specimens of plant macro-remains No younger sediments, except of Holocene riverbed were excavated from the two quarries mentioned deposits, are cropping out in the area. above. In addition, 12 specimens were collected Th e Vrysses beds are almost horizontal or slightly from stone walls in the Mediterranean Agronomic inclined to the northeast. In the study area limestone Institute of Chania that originated from the Vrysses and marls can be approached in naturally eroded quarries. All studied plant fossils are preserved as outcrops or in active quarries. Th e typical section leaf impressions. Th e specimens were studied af- in the study area can be lithologically subdivided ter careful cleaning and in a few cases mechanical into fi ve distinct horizons. Th e lowermost (M1) is preparation was applied. Unfortunately, the leaves formed by massive white limestone, normally very were in most cases fragmented, very rarely complete.
Load more

Recommended publications
  • Arboretum News Armstrong News & Featured Publications
    Georgia Southern University Digital Commons@Georgia Southern Arboretum News Armstrong News & Featured Publications Spring 2019 Arboretum News Georgia Southern University- Armstrong Campus Follow this and additional works at: https://digitalcommons.georgiasouthern.edu/armstrong-arbor-news Part of the Education Commons This article is brought to you for free and open access by the Armstrong News & Featured Publications at Digital Commons@Georgia Southern. It has been accepted for inclusion in Arboretum News by an authorized administrator of Digital Commons@Georgia Southern. For more information, please contact [email protected]. Arboretum News Issue 9 | Spring 2019 A Newsletter of the Georgia Southern University Armstrong Campus Arboretum From the Editor: Arboretum News, published by the Grounds Operations Department ’d like to introduce you to the Armstrong Arboretum of the new of Georgia Southern University- IGeorgia Southern University-Armstrong Campus. Designated Armstrong Campus, is distributed as an on-campus arboretum in 2001 by former Armstrong to faculty, staff, students and Atlantic State University president Dr. Thomas Jones, the friends of the Armstrong Arboretum. The Arboretum university recognized the rich diversity of plant life on campus. encompasses Armstrong’s 268- The Arboretum continues to add to that diversity and strives to acre campus and displays a wide function as a repository for the preservation and the conservation variety of shrubs and other woody of plants from all over the world. We also hope to inspire students, plants. Developed areas of campus faculty, staff and visitors to appreciate the incredible diversity contain native and introduced species of trees and shrubs. Most that plants have to offer.
    [Show full text]
  • Bulletin 14 of the European Dry Grassland Group
    Bulletin 14 of the European Dry Grassland Group Introduction The spring has come at last. Soon, all European naturalists will be very busy with their fieldwork. Before this happens, however, we invite you to read this Bulletin issue, which presents several interesting contributions and news on the numerous EDGG activities. The number of EDGG members exceeded 800 last month. Soon, the key EDGG events will take place - the EDGG research expedition to Sicily (Italy) and the European Dry Grassland Meeting in Prespa (Greece). You can find the most topical information about their preparation on the following pages. You can learn about the development of four prepared special issues focussing on grasslands. You can also learn which grasslands belong to the biodiversity hotspots at small scales. Besides that, you can find here information on the upcoming meetings and events, three book reviews and numerous smaller announcements from our members. Maybe you will notice that in this issue we have used some new graphical elements. We hope you like the changes! To make this and the future Bulletins more user-friendly, we have also adopted some structural changes and developed a fixed sequence of sections. The longer contributions (reports and research articles) in the central part of the Bulletin will have the structure of normal scientific papers so that they could easily be printed, posted and shared as separate items. Most of the beautiful photographs of animal and plant species included in the issue were provided by Rocco Labadessa from Bari (Italy). We wish you a!pleasant read! Editors Content Activities and announcements of EDGG 2 Skyros: a very “dry grassland” Greek island 9 STIPA: Saving Transylvania’s Important Pastoral Agro-Ecosystems 11 Forum 13 Book reviews 15 Recent publications of our members 17 Forthcoming events 18 Coscinia striata (male), Alta Murgia, Apulia, Italy.
    [Show full text]
  • A Projeet for the Preservation of Zelkova Abelicea (Ulmaceae), a Threatened Endemie Tree Species from the Mountains of Crete
    Bernhard Egli A projeet for the preservation of Zelkova abelicea (Ulmaceae), a threatened endemie tree species from the mountains of Crete Abstract Egli, B.: A project for the preservation of Ze/kova abelicea (U/maceae), a threatened endemie !ree species from the mountains ofCrete. - Bocconea 5: 505-510. 1997. - ISSN 1120-4060. Ze/kova abelicea, a Tertiary relict species, is today restricted to Crete where it is scattered -in ali the main mountain massifs. It is a threatened species of which few old, fertile trees remain, and it is important that it be preserved. Heavy overgrazing now prevents the development of shrubby individuals into trees and jeopardizes regeneration through the seldom germinating seeds. The species has been studied for eight years, both in situ in its natural stands and in cultivation. In-vitro cloning using leaves, twigs, roots, seeds, and seedlings proved difficult due to bacterial infection of nearly ali plants. Just one of a hundred seedlings was not con­ taminated and was thus suited for vegetati ve propagation. Based on this study, concrete steps of a project for the preservation, multiplication and afforestation of Ze/kova are devised. Introduction Zelkova abelicea (Lam.) Boiss. is of eonsiderable seientifie interest as an E. Mediter­ ranean Tertiary reliet speeies. Until reeently (when a seeond, even rarer speeies was dis­ eovered in Sieily and deseribed as Z. sicula by Di Pasquale & al. 1992) it was eonsidered as the sole extant European representative of the otherwise Asian genus Zelkova of the Ulmaceae. It is endemie to Crete, where it is restrieted to the mountains.
    [Show full text]
  • Download PCN-Acer-2017-Holdings.Pdf
    PLANT COLLECTIONS NETWORK MULTI-INSTITUTIONAL ACER LIST 02/13/18 Institutional NameAccession no.Provenance* Quan Collection Id Loc.** Vouchered Plant Source Acer acuminatum Wall. ex D. Don MORRIS Acer acuminatum 1994-009 W 2 H&M 1822 1 No Quarryhill BG, Glen Ellen, CA QUARRYHILL Acer acuminatum 1993.039 W 4 H&M1822 1 Yes Acer acuminatum 1993.039 W 1 H&M1822 1 Yes Acer acuminatum 1993.039 W 1 H&M1822 1 Yes Acer acuminatum 1993.039 W 1 H&M1822 1 Yes Acer acuminatum 1993.076 W 2 H&M1858 1 No Acer acuminatum 1993.076 W 1 H&M1858 1 No Acer acuminatum 1993.139 W 1 H&M1921 1 No Acer acuminatum 1993.139 W 1 H&M1921 1 No UBCBG Acer acuminatum 1994-0490 W 1 HM.1858 0 Unk Sichuan Exp., Kew BG, Howick Arb., Quarry Hill ... Acer acuminatum 1994-0490 W 1 HM.1858 0 Unk Sichuan Exp., Kew BG, Howick Arb., Quarry Hill ... Acer acuminatum 1994-0490 W 1 HM.1858 0 Unk Sichuan Exp., Kew BG, Howick Arb., Quarry Hill ... UWBG Acer acuminatum 180-59 G 1 1 Yes National BG, Glasnevin Total of taxon 18 Acer albopurpurascens Hayata IUCN Red List Status: DD ATLANTA Acer albopurpurascens 20164176 G 1 2 No Crug Farm Nursery QUARRYHILL Acer albopurpurascens 2003.088 U 1 1 No Total of taxon 2 Acer amplum (Gee selection) DAWES Acer amplum (Gee selection) D2014-0117 G 1 1 No Gee Farms, Stockbridge, MI 49285 Total of taxon 1 Acer amplum 'Gold Coin' DAWES Acer amplum 'Gold Coin' D2015-0013 G 1 2 No Gee Farms, Stockbridge, MI 49285, USA Acer amplum 'Gold Coin' D2017-0075 G 2 2 No Shinn, Edward T., Wall Township, NJ 07719-9128 Total of taxon 3 Acer argutum Maxim.
    [Show full text]
  • Literaturverzeichnis
    Literaturverzeichnis Abaimov, A.P., 2010: Geographical Distribution and Ackerly, D.D., 2009: Evolution, origin and age of Genetics of Siberian Larch Species. In Osawa, A., line ages in the Californian and Mediterranean flo- Zyryanova, O.A., Matsuura, Y., Kajimoto, T. & ras. Journal of Biogeography 36, 1221–1233. Wein, R.W. (eds.), Permafrost Ecosystems. Sibe- Acocks, J.P.H., 1988: Veld Types of South Africa. 3rd rian Larch Forests. Ecological Studies 209, 41–58. Edition. Botanical Research Institute, Pretoria, Abbadie, L., Gignoux, J., Le Roux, X. & Lepage, M. 146 pp. (eds.), 2006: Lamto. Structure, Functioning, and Adam, P., 1990: Saltmarsh Ecology. Cambridge Uni- Dynamics of a Savanna Ecosystem. Ecological Stu- versity Press. Cambridge, 461 pp. dies 179, 415 pp. Adam, P., 1994: Australian Rainforests. Oxford Bio- Abbott, R.J. & Brochmann, C., 2003: History and geography Series No. 6 (Oxford University Press), evolution of the arctic flora: in the footsteps of Eric 308 pp. Hultén. Molecular Ecology 12, 299–313. Adam, P., 1994: Saltmarsh and mangrove. In Groves, Abbott, R.J. & Comes, H.P., 2004: Evolution in the R.H. (ed.), Australian Vegetation. 2nd Edition. Arctic: a phylogeographic analysis of the circu- Cambridge University Press, Melbourne, pp. marctic plant Saxifraga oppositifolia (Purple Saxi- 395–435. frage). New Phytologist 161, 211–224. Adame, M.F., Neil, D., Wright, S.F. & Lovelock, C.E., Abbott, R.J., Chapman, H.M., Crawford, R.M.M. & 2010: Sedimentation within and among mangrove Forbes, D.G., 1995: Molecular diversity and deri- forests along a gradient of geomorphological set- vations of populations of Silene acaulis and Saxi- tings.
    [Show full text]
  • Tree Recommendations
    New Mexico State University, Cooperative Extension Service www.aces.nmsu.edu Shrubs Vines Trees Palms Citrus ‘Landscape Trees in the Southwest’ Discovering the beautiful possibilities of what can be grown in our southwestern desert climates Washington D.C. Tree Canopies for Walkability of City Streets, Reduction of the Heat Island Effect Red Oaks Tree Groups to Consider Zelkova/Elm trees Fagaceae/Oak Family Heritage Seedlings and Liners, Salem, Oregon (heritageseedlings.com) ‘Mesa de Maya’ Oak Quercus grisea ‘Grey Oak’ Quercus muhlenbergii ‘Chinquapin Oak’ Quercus rugosa ‘Net Leaf Oak’ Quercus laceyi ‘Lacey Oak’ Quercus oblongifolia ‘Mexican Blue Oak’ Quercus robur x alba 'Crimschmidt‘ ‘CRIMSON SPIRE OAK’ Quercus albocicta ‘Cusi Oak’ Yécora, Sonora, Mexico Quercus germana ‘Mexican Royal Oak’ Ulmaceae/Elm Family Celtis reticulata ‘Net Leaf Hackberry’ Sapindaceae/Maple Family Sapindus drummondii ‘Western Soapberry’ Ungnadia speciosa ‘Mexican Buckeye’ Acer grandidentatum ‘Big Tooth Maple’ ‘Big Tooth Maple’ Acer grandidentatum ‘Mesa Glow’ NMSU, New Tree Introduction through J. Frank Schmidt & Son Company, Boring, OR Acer sempervirens ‘Cretan Maple’ Acer sempervirens ‘Cretan Maple’ Cashew/Anacardiaceae Family Pistacia chinensis Pistacia chinensis ‘Keith Davey’ Pistacia ‘Red Push’ Pistacia mexicana Pistacia lentiscus ‘Mastic Gum Tree’ Pistacia lentiscus Pistacia lentiscus Rhus ovata Rhus ovata Olive/Oleaceae Family Chionanthus retusus ‘Chinese Fringe Tree’ Chionanthus retusus ‘Chinese Fringe Tree’ Foresteria neomexicana Fraxinus greggii ‘Little
    [Show full text]
  • Fall 2012 Mail Order Catalog Cistus Nursery
    Fall 2012 Mail Order Catalog Cistus Nursery 22711 NW Gillihan Road Sauvie Island, OR 97231 503.621.2233 phone order by phone 9 - 5 pst, visit 10am - 5pm, mail, or email: [email protected] 24-7-365 www.cistus.com Fall 2012 Mail Order Catalog 2 Abelia x grandiflora 'Margarita' margarita abelia New and interesting abelia with variegated leaves, green with bright yellow margins, on red stems, dressing up a smallish shrub, expected to be 4 ft tall and wide. A cheerful addition to the garden. Flowers are typical of the species, beginning in May and continuing sporadically throughout the season. Best in sun -- they tend to be leggy in shade -- with average summer water. Frost hardy to -20F, USDA zone 6. $14 Caprifoliaceae Abutilon 'Savitzii' flowering maple One of the few abutilons we sell that is quite tender. Grown since the 1800s for its wild variegation -- the leaves large and pale, almost white with occasional green blotches -- and long, salmon-orange, peduncled flowers. A medium grower, to 4-6 ft tall, needing consistent water and nutrients in sun to part shade. Winter mulch increases frost hardiness as does some overstory. Frost hardy to 25 F, mid USDA zone 9. Where temperatures drop lower, best in a container or as cuttings to overwinter. Well worth the trouble! $9 Malvaceae Acanthus sennii A most unusual and striking species from the highlands of Ethiopia, a shrub to 3 ft or more with silvery green leaves to about 3" wide, ruffle edged and spined, and spikes of nearly red flowers in summer and autumn.
    [Show full text]
  • Mediterranean Forest”: a Perspective for Vegetation History Reconstruction
    Volume IX ● Issue 2/2018 ● Pages 207–218 INTERDISCIPLINARIA ARCHAEOLOGICA NATURAL SCIENCES IN ARCHAEOLOGY homepage: http://www.iansa.eu IX/2/2018 Thematic Review The “Mediterranean Forest”: A Perspective for Vegetation History Reconstruction Marta Mariotti Lippia, Anna Maria Mercurib*, Bruno Foggia aDepartment of Biology, University of Florence, Via La Pira 4, 50121 Florence, Italy bLaboratory of Palynology and Palaeobotany, Department of Life Sciences, University of Modena and Reggio Emilia, Viale Caduti in Guerra 127, 41121 Modena, Italy ARTICLE INFO ABSTRACT Article history: Starting from the multifaceted meaning of “Mediterranean”, this thematic review wishes to reconnect Received: 22nd September 2018 the palaeobotanical with the phytogeographical approach in the reconstruction of the Mediterranean Accepted: 31st December 2018 Forest of the past. The use of the term “Mediterranean” is somewhat ambiguous in its common use, and has not an unequivocal meaning in different research fields. In botany, geographical-floristic studies DOI: http://dx.doi.org/ 10.24916/iansa.2018.2.7 produce maps based on the distribution of the plant species; floristic-ecological studies, produce maps that deal with the distribution of the plant communities and their relationships with different habitats. Key words: This review reports on the different use of the term “Mediterranean” in geographical or floristic floristic studies studies, and on the way climate and plant distributions are used to define the Mediterranean area. The palynology Mediterranean Forest through the palynological records is then shortly reported on. Pollen analysis sclerophyllous may be employed to reconstruct the Mediterranean Forest of the past but a number of problems make Quercus species this a difficult task: low pollen preservation, lack of diagnostic features at low taxonomical level, Meso-Mediterranean and low pollen production of species which form the Mediterranean Forests.
    [Show full text]
  • 2017-4 Winter Newsletter Wespelaar Maple Collection No
    Reprinted from: The Maple Society Newsletter, Winter 2017 Vol 27/4 The Maple Collection at Arboretum Wespelaar, Belgium, with a special focus on some of the newer and rarer additions By Koen Camelbeke, Director, Arboretum Wespelaar It is indeed safe to say that the first dendrological passion of the founder of Arboretum Wespelaar, Philippe de Spoelberch, was for the genus Acer and rightly so! As we all know, this genus is really a joy at all times of year: flowers; new growth; colour and texture of emerging leaves in the Spring; variation in form and colour of leaves in the View across the lake at Arboretum Wespelaar, July 2013. Summer; autumn (Photo: Keith Montgomery) colours from late September to the end of November; and finally, the amazing range of bark textures and general tree habit which grace the winter months. When the Arboretum collection was started in the mid-1980s, the focus was on both botanical diversity as well as on aesthetics, especially focusing on autumn colour and Japanese maples. In the last decade or so, the focus shifted gradually to plants of known wild origin with the aim to present all of the species hardy in Belgium. Belgium is in this respect a wonderful country. Of course, as everywhere else, we also try to grow taxa which are more borderline in our climate, but, speaking of maples, Belgium has an excellent temperate, maritime climate influenced by the North Sea and Atlantic Ocean. Wespelaar is about 130km from the coast which means that our winters are somewhat colder and our summers hotter compared to the west of the country.
    [Show full text]
  • Asterodiscus and Stigmatodiscus, Two New Apothecial Dothideomycete Genera and the New Order Stigmatodiscales
    Fungal Diversity (2016) 80:271–284 DOI 10.1007/s13225-016-0356-y Asterodiscus and Stigmatodiscus, two new apothecial dothideomycete genera and the new order Stigmatodiscales Hermann Voglmayr1 & Alain Gardiennet 2 & Walter M. Jaklitsch1,3 Received: 25 August 2015 /Accepted: 11 January 2016 /Published online: 2 February 2016 # The Author(s) 2016. This article is published with open access at Springerlink.com Abstract During a survey on corticolous Dothideomycetes, Keywords Ascomycota . Dothideomycetes . New species . several collections with ascospores matching the genera New genus . New family . New order . Phylogenetic analysis . Asteromassaria and Stigmatomassaria (Pleomassariaceae, Taxonomy Pleosporales) were revealed from dead corticated twigs of Acer, Carpinus and Tamarix. Closer morphological examina- tion showed that their ascomata were apothecial, with a Introduction hamathecium consisting of septate, branched paraphyses, which are apically swollen at maturity. Several collections During a survey on corticolous ascomycetes in Istria, Croatia were cultured and sequenced, and a Blast search of their nuc in September 2010, we collected a dothideomycetous species 28S rDNA sequences revealed dothideomycetous affiliation, from dead corticated twigs of Carpinus orientalis which but without a close match to a specific family or order. showed ascospores with a striking resemblance to Phylogenetic analyses of a multigene matrix containing a rep- Stigmatomassaria pupula (Pleomassariaceae, Pleosporales; resentative selection of Dothideomycetes
    [Show full text]
  • Taxonomy and Phylogenetic Insights for Mexican and Central American Species of Acer (Sapindaceae)1
    Taxonomy and phylogenetic insights for Mexican and Central American species of Acer (Sapindaceae)1 Authors: Vargas-Rodriguez, Yalma L., Urbatsch, Lowell E., and Karaman-Castro, Vesna Source: The Journal of the Torrey Botanical Society, 147(1) : 49-86 Published By: Torrey Botanical Society URL: https://doi.org/10.3159/TORREY-D-19-00011.1 BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Complete website, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/terms-of-use. Usage of BioOne Complete content is strictly limited to personal, educational, and non - commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Downloaded From: https://bioone.org/journals/The-Journal-of-the-Torrey-Botanical-Society on 17 Apr 2020 Terms of Use: https://bioone.org/terms-of-use Access provided by Universidad de Guadalajara Journal of the Torrey Botanical Society 147(1): 49–86, 2020. Taxonomy and phylogenetic insights for Mexican and Central American species of Acer (Sapindaceae)1 Yalma L. Vargas-Rodriguez,2, 3 Lowell E. Urbatsch, and Vesna Karaman-Castro Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building, Baton Rouge, LA 70803 Abstract.
    [Show full text]
  • Phytosociological and Ecological Discrimination of Mediterranean Cypress (Cupressus Sempervirens) Communities in Crete (Greece)
    ARTICLES Mediterranean Botany ISSNe 2603-9109 https://dx.doi.org/10.5209/mbot.59789 Phytosociological and ecological discrimination of Mediterranean cypress (Cupressus sempervirens) communities in Crete (Greece) by means of pollen analysis José Antonio López-Sáez1 , Arthur Glais2 , Ioannis Tsiripidis3 , Spyros Tsiftsis4 , Daniel Sánchez- Mata5 & Laurent Lespez6 Received: 5 April 2018 / Accepted: 29 April 2019 / Published online: 7 November 2019 Abstract. Sixty modern surface samples collected from mosses in different cypress forest communities (Cupressus sempervirens L.) on the island of Crete (Greece) were analysed for their pollen content. The samples were taken from six different cypress phytosociological associations between 23 and 1600 m asl, and fall within distinct rainfall and temperature regimes. The aims of this paper are to provide new data on the modern pollen rain from the Aegean islands, and to perform these data using multivariate statistics (hierarchical cluster analysis and canonical correspondence analysis) and pollen percentages. The discrimination of pollen assemblages corresponds to a large extent to the floristic differentiation of Cupressus sempervirens forest vegetation and indicates the existence of three new associations. Keywords: Cupressus sempervirens; Crete; Greece; Palynology; Phytosociology; Multivariate Analyses. Discriminación fitosociológica y ecológica de las comunidades de ciprés (Cupressus sempervirens) en Creta (Grecia) mediante análisis polínico Resumen. Sesenta muestras de lluvia polínica actual
    [Show full text]