doi: 10.1007/BF02851404pmid: N/A
A new species of the genusTragopogon (T. kurdistanicum) has been described from Iraq.
doi: 10.1007/BF02851397pmid: N/A
Die Pflanzengesellschaften des VerbandesCynosurion Tx. 47 wurden unter Anwendung der Methode der multilateralen Differenziation dokumentiert und klassifiziert. Alluviale Fettweiden wurden in den UnterverbandLolio-Cynosurion suball. nova und magere Bergweiden in den UnterverbandPolygalo-Cynosurion suball. nova eingereiht. Insgesamt wurden 4 Assoziationen, 12 Subassoziationen und 28 Varianten festgestellt. Die einzelnen Syntaxa werden in einer Übersichtstabelle zusammengefasst und von synökologischen, syngenetischen, synmorphologischen, syntaxonomischen und synchorologischen Gesichtspunkten beschrieben. Bei der Gegenüberstellung der veröffentlichten Gesellschaften in Europa wird die Verbreitung mancher Einheiten auch in anderen Gebieten als in den Westkarpaten festgestellt. Ganz kurz werden die verwandtschaftlichen Beziehungen desCynosurion zu Kontaktgesellschaften behandelt.
Rybníček, Kamil; Rybníčková, Eliška
doi: 10.1007/BF02851398pmid: N/A
The authors reconstruct the development of some waterlogged meadows in the central part of the Šumava foothills. The palaeoecological investigation of the meadows is based on the macroscopic analyses, completed with pollen analyses, of Late Holocene (Late Flandrian) sediments in five profiles. It is suggested that, in the course of the last 600 to 700 years the meadows developed as a secondary plant community, replacing original alder stands, due to the activity of man in the area; they usually passed through seminatural meadow types to the present cultivated stands. In addition to detailed descriptions of local successions on various sites, the study presents some general conclusions concerning the cenotic and synecological adaptability of some plants, discusses the development of plant communities and their changes in time.
doi: 10.1007/BF02851400pmid: N/A
The authors give measurements of osmotic values in 35 Cuban plant species, using the cryoscopic method. Osmotic values of plants correspond relatively well with environmental conditions, but in different species of the same habitat they may be different. The lowest values were found inCactaceae (−1.6 to −6.2 atm.) and in epiphyticBromeliaceae (−4.6 to −4.7 atm.), the highest in halophytes: −21 to −56 atm.
doi: 10.1007/BF02851403pmid: N/A
A study of the terrestrial polyporeAlbatrellus subrubescens (Murrill)Pouz. (=A. similis) was undertaken. Its morphology, taxonomy, nomenclature, distribution and ecology is discussed.
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