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  5. 06 - Studia Geobotanica. An international journal - Vol. 6 (1986)
  6. Taxonomical studies on Seseli elatum l. And allied species. - i. Systematic implications of some morpho-anatomical characters
 
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Taxonomical studies on Seseli elatum l. And allied species. - i. Systematic implications of some morpho-anatomical characters

Coassini Lokar, Laura
•
Corsi, Gabriella
1986
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http://hdl.handle.net/10077/15114
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Abstract
In the Friuli-Venezia Giulia Region (NE-Italy) three populations of Seseli elatum agg. occur, which have different altitude ranges and different ecology. It is generally difficult to distinguish these three taxa by classical taxonomical characters. This paper presents a first contribution to the solution of the problem. We have examined the classical morphological characters, plus microcharacters of the fruit surface (SEM), and the secretory structures (canals, ampullae, vittae). We propose some new discriminant characters. The morpho-anatomical variation seems to be correlated with a gradient of decreasing temperature and aridity, and increasing elevation. The anatomical variation corresponds with variation in the biochemical production. The numerical classification of ali characters indicates a rather isolated position of the population which occurs in xerophytic plant associations at low altitude.
Series
Studia Geobotanica. An international journal
06
Subjects
  • Seseli elatum agg.

  • Umbelliferae

  • morphology

  • vittae

  • secretory canals

  • adaptive ecological s...

Publisher
EUT Edizioni Università di Trieste
Source
Laura Coassini Lokar, Gabriella Corsi, "Taxonomical studies on Seseli elatum l. And allied species. - i. Systematic implications of some morpho-anatomical characters" in: "Studia Geobotanica. An international journal, Vol. 6 (1986)", EUT Edizioni Università di Trieste, Trieste, 1986, pp. 131-143
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