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Kubíček, Ferdinand; Šomšák, Ladislav; Šimonovič, Vojtech; Majzlanová, Eva; Háberová, Izabela; Rybárska, Veronika
doi: 10.1007/BF02857262pmid: N/A
The attention was focussed on the evaluation of the impact of trampling on autochtonous dwarf pine communities in the Tatra National Park (Vysoké Tatry Mts.). Use was made of combined phytocoenological and production-ecological methods. Results are described and discussed according to floristic-phytocoenological analyses, production-ecological analyses and the basic parameters of total organic matter supply.
doi: 10.1007/BF02857270pmid: N/A
Four earlier proposed and invalidly published generic names ofLycopodiaceae are validated:Lateristachys (type:Lycopodium laterale R. Br.),Lycopodiastrum (type:Lycopodium casuarinoides Spring),Pseudodiphasium (type:Lycopodium volubile G. Forster) andPseudolycopodium (type:Pseudolycopodium densum (Rothm.) Holub). A new genusPseudolycopodiella (type:Lycopodium carolinianum L.) is described. New nomenclatural combinations are proposed for 17 species of these genera and ofLycopodiella.
Daget, Philippe; McQueen, Ross
doi: 10.1007/BF02857264pmid: N/A
A method of simultaneous analysis of vertical and horizontal structure is described. It is particulary applicable to forest and shrubland. Data come from point-height analysis of vegetation: 100 sample points are arranged in 4 lines of 25, with 2 m between lines and 1 m between points on lines. At each point, specific lists of spaces intercepted optically are observed by vertical measurement strata. Strata depth is 10 cm when mean vegetation height is lower than 4–5 m, and 50 cm above this height. This study is based on height of upper vegetation presence, and applied to low forests ofNothofagus antarctica (Forest.)Verst. in Southern Chile and Argentina. The authors summarize the data sequence by the cumulative sum technique. This technique allows the rapid and clear delimitation of three dimensional mosaic units of vegetation whose height varies vertically from the mean height. The pattern of these mosaic units is shown as three dimensional block diagrams, giving a good representation of structural dominance patterns.
doi: 10.1007/BF02857260pmid: N/A
Up till now 22 plant associations of springs and mountain brooks are known in Czechoslovakia. They can be arranged in 6 alliances:Cardaminion amarae, Cardamino-Montion, Swertio-Anisothecion squarrosi, Cratoneuro filicini-Calthion laetae, Cratoneurion commutati andLycopo-Cratoneurion. Three alliances, two associations and one subassocíation are described as new ones, three associations are renamed.
doi: 10.1007/BF02857271pmid: N/A
A survey of homonyms in the genusTaraxacum is given. 10 new names are proposed (partly as a result of collaboration with the authors of illegitimate names.), 8 other homonyms are listed. Homonyms which were recorded previously in the literature (or names that were substituted by new names) are only briefly mentioned.
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