63 research outputs found

    Epilobium ciliatum Raf., a new plant invader in Slovenia and Croatia

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    The North American invasive species Epilobium ciliatum Raf. was recently recorded for the first time in Slovenia and Croatia. The most reliable character with which to distinguish E. ciliatum from all native European Epilobium species is the presence of conspicuous longitudinal white stripes on the seed testa. If seeds are not available, E. ciliatum may easily be misidentified as E. roseum. With fieldwork and revision of herbarium material we ascertained that the invasion towards the territory discussed came from the north, which is in agreement with the north west to south east direction of the spread in Europe. At least in Eastern Slovenia E. ciliatum has already become an important member of ruderal plant communities. Rapid spreading and naturalization as in the case of E. ciliatum can give rise to concern that it will replace some indigenous species with a similar ecology or hybridise and so by introgression cause »genetic« pollution of native relatives’ populations. Further spread to the south and east is expected

    Myosotis refracta Boiss. (Boraginaceae), an unexpected forget-me-not in the Slovene flora

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    Myosotis refracta Boiss. is reported as a new and unexpected finding for the Slovene flora. The species was found in three collections stored in the Herbarium LJU from south-east Slovenia, in the Kolpa river valley bordering Croatia. All plants thrived under overhanging dolomite rocks. On account of an earlier misidentification, the respective plant community had been described as the association Arabido alpinae- Myosotidetum strictae Accetto 2008, which is here corrected to Arabido alpinae-Myosotidetum refractae Accetto 2008 corr. Strgulc Krajšek, Accetto & Jogan 2016. Myosotis refracta has a disjunct Mediterranean southwest Asian distribution. The reported new localities extend its known range more than 500 km in north-west direction, from its nearest known occurrences on the southern Balkan peninsula

    Revizija rodova Epilobium i Chamerion u hrvatskim herbarima ZA i ZAHO

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    Epilobium (s. lat.) herbarium material in two major Croatian herbaria ZA and ZAHO was revised. The results of the revision of over 400 herbarium sheets confirmed the occurrence of 13 species already reported for Croatia and only slightly changed their known distribution patterns. However two species previously reported for Croatia and represented also by some herbarium sheets turned out to be wrongly determined, the results being that there is now no reliable confirmation of E. alsinifolium and E. alpestre from the territory of Croatia. Summarized results of the revision are also presented and they demonstrate the comparably good level of correctly determined material in the studied herbaria (but with some taxa much less reliably determined) and an alarmingly low state of collecting activity in the last decades.Revidiran je herbarski materijal Epilobium (s. lat.) iz dva velika hrvatska herbara ZA i ZAHO. Rezultati revizije više od 400 herbarskih listova su potvrdili prisutnost 13 vrsta već poznatih za Hrvatsku i samo ponešto promijenili njihovu rasprostranjenost. Dvije vrste prethodno zabilježene za Hrvatsku te prisutne nekim herbarskim listovima, pokazale su se krivo determinirane, pa tako zasad nema utemeljene potvrde za prisutnost E. alsinifolium i E. alpestre na teritoriju Hrvatske. Rad donosi sveukupne rezultate revizije, koji pokazuju relativno dobru razinu ispravno determiniranog materijala u obrađivanim herbarima (s nekim mnogo manje pouzdano determiniranim svojtama) i alarmantno slabu sakupljačku aktivnost zadnjih desetljeća

    Arable bryophytes from Northeastern Slovenia with new and interesting national records

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    We investigated the arable bryophyte flora in the Northeastern region of Slovenia. We found three new bryophyte taxa for Slovenia: Bryum violaceum, Dicranella staphylina and Hydrogonium consanguineum var. kurilense. The presence of the regionally extinct Ephemerum cohaerens was confirmed, and several other species from the National Red List of bryophytes were also recorded. A list of 25 bryophyte species growing on the studied arable fields is presented and commented on

    New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 13

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    This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: brown alga Heribaudiella fluviatilis, red alga Batrachospermum skujae, saprotrophic fungus Gnomonia geranii-macrorrhizi, mycorrhizal fungi Amanita alseides and Russula griseascens, liverwort Ricciocarpos natans, moss Blindia acuta, Leucodon sciuroides var. morensis and Pseudostereodon procerrimus, monocots Allium ampeloprasum, Carex ferruginea and Carex limosa and dicots Convolvulus althaeoides, Fumana aciphylla, Hieracium petrovae, Lamium bifidum subsp. bifidum and Ranunculus fontanus are given within SE Europe and adjacent region

    New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 14

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    This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: diatom algae Cyclostephanos invisitatus, Cyclotella meduanae, and Stephanodiscus lacustris, mycorrhizal fungi Alessioporus ichnusanus and Amanita mairei, saprotrophic fungi Diaporthe oncostoma, Stropharia albonitens and Pseudomassaria chondrospora, lichenised fungus Acrocordia subglobosa, stonewort Chara connivens, mosses Buxbaumia viridis, Tortella fasciculata and Tortula protobryoides, monocots Epipactis pontica Gymnadenia frivaldii, and Orchis italica and dicots Callitriche brutia, Callitriche platycarpa and Epilobium nutans are given within SE Europe and adjacent regions

    New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 15

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    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 Ricciocarpus natans, moss Campylopus introflexus, Dicranum transsylvanicum, Tortella pseudofragilis and Trematodon ambiguus, fern Ophioglossum vulgatum subsp. vulgatum, monocots Epipactis exilis, Epipactis purpurata and Epipogium aphyllum and dicots Callitriche cophocarpa, Cornus sanguinea subsp. hungarica and Viscum album subsp. austriacum are given within SE Europe and adjacent regions

    Energy renovation of primary school of Šempeter in Savinjska valley

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    V magistrskem delu smo predstavili zakonodajo, smernice in pravilnike, ki urejajo energetsko učinkovitost stavb, energetsko izkaznico, natančneje opisali njeno vsebino ter na praktičnem primeru energetske sanacije osnovne šole Šempeter v Občini Žalec naredili analizo sanacije z vzporednim preračunom kazalnikov energetske učinkovitosti pred sanacijo in po njej ter prikazali ukrepe, s katerimi smo dosegli izboljšanje toplotne izoliranosti, povečanje prihrankov pri rabi električne in toplotne energije, večjo uporabo obnovljivih virov energije, zmanjšanje emisij toplogrednih plinov, znižanje obratovalnih stroškov objekta ter povečanje ozaveščenosti uporabnikov. Izdelali smo računsko in merjeno energetsko izkaznico ter rezultate primerjali s tistimi, ki jih je dobil pogodbeni izvajalec v času izvajanja renovacije. Izveden je bil tudi termografski pregled objekta, kjer se je analizirala toplotna izoliranost stavbe.In our thesis we presented the legislation, guidelines and rules governing the energy performance of buildings, energy certificate, described its content in more detail and used a practical example of energy renovation of primary school of Šempeter in municipality of Žalec to do an analysis of energy rehabilitation with parallel calculations of energy efficiency indicators before and after energy renovation and presented the measures, that were taken to achieve the goals of improving thermal insulation, increasing savings in electricity and heat consumption, greater use of renewable energy sources, reducing greenhouse gas emissions, reducing the operating costs of the facility and raising user awareness. We made a calculated and a measured energy performance certificate and compared the results with the ones that were calculated by the contractor when the renovation was made. A thermographic inspection of the building was also carried out, where the thermal insulation of the building was analysed
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