Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Search

Refine search

Refine search

Access:
Content type:
Publication date:
Apply   From and To filters
Subject: Show more
Journals Show more
Publishers: Show more
Societies Show more
Series: Show more
Collections: Show more

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

2 results

  • Teucrium (Lamiaceae) in NE tropical Africa

  • O. Ryding
  • Journal:
    Edinburgh Journal of Botany / Volume 55 / Issue 2 / July 1998
    Published online by Cambridge University Press:
    26 April 2010, pp. 209-220
    Print publication:
    July 1998

  • Teucrium (Lamiaceae) from NE tropical Africa is revised. Of the six species recognized, three new species are described and illustrated: T. clementiae Ryding from E Ethiopia and N Somalia, T. somalense Ryding from NW Somalia, and T. polioides Ryding from NE and C Somalia. Maps and a key to the species are also provided.

  • Polyploidy: a factor in the evolution of Dicerandra Benth. (Labiatae)

  • R. B. Huck, H. L. Chambers
  • Journal:
    Edinburgh Journal of Botany / Volume 54 / Issue 2 / July 1997
    Published online by Cambridge University Press:
    26 April 2010, pp. 217-229
    Print publication:
    July 1997

  • Chromosome counts are reported for the first time in Dicerandra Benth. (Labiatae), a genus endemic to the south-eastern United States. Representative taxa are tetraploid (n = 16) and hexaploid (n = 24). Diploids were not found. The systematic, phytogeographic and conservation implications of polyploidy in this genus are discussed. The monophyletic nature of the genus is upheld by the discovery that both sections have a presumed base number of x = 8. Hexaploidy has apparently evolved independently in all branches of sect. Dicerandra, but not in sect. Lecontea.