If you need an accessible version of this item please contact JSTOR User Support

Horstrissea dolinicola, a New Genus and Species of Umbels (Umbelliferae, Apiaceae) from Kriti (Greece)

Bernhard Egli, Pedro Gerstberger, Werner Greuter and Horst Risse
Willdenowia
Bd. 19, H. 2 (Apr. 23, 1990), pp. 389-399
Stable URL: http://www.jstor.org/stable/3996647
Page Count: 11
  • Download PDF
  • Cite this Item

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support
Horstrissea dolinicola, a New Genus and Species of Umbels (Umbelliferae, Apiaceae) from Kriti (Greece)
Preview not available

Abstract

A new species of umbels, belonging to an undescribed new genus, was discovered in two neighbouring dolines of the Psiloritis mountain range in central Kriti, at an altitude of c. 1500 m. It is a highly specialized plant, whose most unusual feature is leaf development: the ultimate portions of the tritemate basal leaves emerge individually on the surface of the sandy ground, being borne on long, flexuous subterranean petioles and petiolules. The new species is fully described and illustrated, and its ecology is outlined. The relationships of the new genus are discussed. It belongs to the Apieae (=Ammieae) but is probably closest to Scaligeria, a genus hitherto misplaced in the Smyrnieae, which it resembles in its geophytic habit and in fruit structure. The chromosome number 2n = 14 was counted for Horstrissea. The basis x = 7 is unusual in the Umbelliferae and has so far been reported only once in a potentially allied genus, Bunium, where it is considered as derived through descending aneuploidy from the primitive x = 11.

Page Thumbnails

  • Thumbnail: Page 
389
    389
  • Thumbnail: Page 
390
    390
  • Thumbnail: Page 
391
    391
  • Thumbnail: Page 
392
    392
  • Thumbnail: Page 
393
    393
  • Thumbnail: Page 
394
    394
  • Thumbnail: Page 
395
    395
  • Thumbnail: Page 
396
    396
  • Thumbnail: Page 
397
    397
  • Thumbnail: Page 
398
    398
  • Thumbnail: Page 
399
    399