01 - Studia Geobotanica - An International Journal - Vol. 1 no. 1 (1980)

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CONTENTS / SOMMARIO

Marchesetti Carlo

Discorso Commemorativo di Muzio de' Tommasini

Zennaro Licia

Tommasini nella vita civile e sociale di Trieste

Pignatti Wikus Erika

Plantae Tommasinianae

Poldini Livio

Übersicht über die Vegetation Vegetation des Karstes von Triest und Görz (NO-Italien)

Pignatti Sandro

I complessi vegetazionali del triestino

Cusma Velari Tiziana, Lausi Duilio

Indagini cariologiche in Stachys recta L., S. labiosa Bertol., S. subcrenata Vis., S. fragilis Vis.

Turecek Gabriela, Titz Eva, Titz Walter

Eine neue diploide Valeriana officinalis - sippe im illyrischen Raum

Gerdol Renato

Scheuchzeria palustris L. nuova per le Alpi Carniche

Wraber Tone

Über einige neue oder seltene Arten in der Flora der Julischen Alpen (IV)

Iljianic Ljudevit

Galium setaceum Lam. auf der Insel Mljet - Kroatien

Aichinger Erwin

Zum Gedenken an K. und K. Statthalterei-Rath in Triest Dr. Mutius Ritter von Tommasini

Lausi Duilio, Gerdol Renato

Valutazione fitosociologica degli aggruppamenti a Carex brachystachys nelle Alpi Giulie occidentali

Trinajstic Ivo

Aperçu syntaxonomique de la vegetation des rochers de l'espace adriatique

Feoli Chiapella Laura, Feoli Enrico, Ganis Paola, Sorge Angela

Spatial pattern analysis of abandoned grasslands Of the Karst region by Trieste and Gorizia

Poelt Josef, Hafellner Josef

Zur Verbreitung und Biologie der Flechte Caloplaca anularis

Rizzi Longo Loredana, Poldini Livio, Goia Franca

La microflora algale delle pareti calcaree del Friuli-Venezia Giulia (Italia nord-orientale)

Coassini Lokar Laura, Tomè Franca, Poldini Livio, Porrati Maurizio

Indagine sul contenuto di colchicina in Colchicum autumnale L. dell'Italia settentrionale

Euw J. v., Lounasmaa M., Reichstein T., Widén C.J.

Chemotaxonomy in Dryopteris and related fern genera

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Now showing 1 - 5 of 19
  • Publication
    Studia Geobotanica Vol. 1 no. 1 1980
    (EUT Edizioni Università di Trieste, 1980)
      258  1648
  • Publication
    Chemotaxonomy in Dryopteris and related fern genera
    (EUT Edizioni Università di Trieste, 1980)
    Euw, J. v.
    ;
    Lounasmaa, M.
    ;
    Reichstein, T.
    ;
    Widén, C.J.
    The most important phloroglucinol derivatives ("filicins") isolated from rhizomes of Dryopteris species are discussed. The chemical analysis of Dryopteris rhizomes can (in conjunction with classical and cytological methods) provide valuable criteria for the solution of taxonomical problems, particularly as follows: 1. Identification of otherwise uncertain herbarium specimens. 2. Classification of critical taxa in a difficult complex. 3. Understanding of natural relations, including parents in hybrids and ancestors in allopolypoid species. Analytical methods are critically evaluated.
      467  589
  • Publication
    Indagine sul contenuto di colchicina in Colchicum autumnale L. dell'Italia settentrionale
    (EUT Edizioni Università di Trieste, 1980)
    Coassini Lokar, Laura
    ;
    Tomè, Franca
    ;
    Poldini, Livio
    ;
    Porrati, Maurizio
    The colchicine content in Colchicum autumnale L. of North Italy. The colchicine content of different parts (bulb, flower, leaves, seeds, capsules) of C. autumnale L. has been identified. The specimens were collected in North Italy, in stations with different altitudinal, climatic and vegetational conditions. Colchicine is present in all the studied parts, with a concentration gradient going from a maximum in the seeds to a minimum in the bulbs. The colchicine content in the bulbs varies according to the principal phases of the life-cycle (flowering, fruiting, hudding), whereas in the seeds it depends from the degree of ripeness, being higher in the first stages. On the basis of results, it is suggested to take into consideration also leaves and flowers for the extraction of the alkaloid.
      348  515
  • Publication
    La microflora algale delle pareti calcaree del Friuli-Venezia Giulia (Italia nord-orientale)
    (EUT Edizioni Università di Trieste, 1980)
    Rizzi Longo, Loredana
    ;
    Poldini, Livio
    ;
    Goia, Franca
    THE ALGAL MICROFLORA ON CALCAREOUS WALLS OF FRIULI - VENEZIA GIULIA (NE - ITALY). The algal biotopes are mostly populated by Cyanophytes. The most abundant Algae are Gloeocapsa and Scytonema. Microphytic communities are described phytosociologically. The algal vegetation is similar to Scytonemo - Gloeocapsetum described by Golubić (1967). The lithophytic vegetation of three localities of different microecology is compared. Some difference with regard to the relative abundance of coccoid and filamentous species is detected.
      255  559
  • Publication
    Zur Verbreitung und Biologie der Flechte Caloplaca anularis
    (EUT Edizioni Università di Trieste, 1980)
    Poelt, Josef
    ;
    Hafellner, Josef
    DISTRIBUTION AND BIOLOGY OF THE LICHEN CALOPLACA ANULARIS. Caloplaca anularis, described from the Western Alps in 1972, is reported for the first time from the Eastern Alps and the Balkan peninsula. The species grows always on steep calcareous rocks. There garlandlike, centrifugal, rarely fruiting thalli are built. On small projections of the rocks it grows rosulate and many apothecia are developed. The form of growing is connected with a deposit of excrets in the medulla and the hypothallus increasing towards the older parts of the thallus. The excrets deposited in the medulla and the hypothallus differ with the optical activity.
      345  181