section Trionychon Wallr

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Pollen Morphology of the Genus Orobanche L. ‎‎(Orobanchaceae)‎

Journal Title, Volume, Page: 
Botanical Journal of the Linnean Society Volume 116, Issue 4, Pages 305–313
Year of Publication: 
A.S. Tubaileh
Current Affiliation: 
Department of Plant Production and Protection,Faculty of Agriculture and Veterinary Medicine, An Najah National University, Nablus, Palestine
D.M. Keith-Lucas
S.L. Jury
Preferred Abstract (Original): 

A comparative palynological study of 25 taxa of the genus Orobanche L. belonging to section TrionychonWallr. and section Orobanche L. was carried out. A clear difference between the pollen grains of sectionTrionychon and section Orobanche was observed. The grains of section Trionychon are typically tricolpate, radially symmetrical, more or less oblate spheroidal with a microreticulate, or scabrate-perforate sculpture. Section Orobanche on the other hand, had spheroidal, more or less inaperturate pollen grains, although some were tricolpate, but without any clear symmetry. The basic surface sculpture of the pollen in sectionOrobanche was scabrate to rugulate-perforate. Palynologically, six groups can be recognized amongst the species of the genus Orobanche, for which a key is provided.

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