Volume 5, Issue 1 (6-2018)                   nbr 2018, 5(1): 82-94 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Eyvazadeh Khosroshahi E, Salmaki Y. Nutlet micromorphology and its systematic implications in Phlomoides Moench (Lamiaceae). nbr. 2018; 5 (1) :82-94
URL: http://nbr.khu.ac.ir/article-1-3130-en.html
Assistant professor Molecular Systematics University of Tehran , ysalmaki@ut.ac.ir
Abstract:   (460 Views)
Nutlets of 20 taxa of Phlomoides, representing most of the currently recognized sections were examined by scanning electron microscopy. The basic shape of nutlets in most taxa studied is broadly ovate, but ovate, triangular and oblong ones can also be found in few species. Regarding the sculpturing pattern of nutlet surface, four basic types can be distinguished: reticulate, scalariform, ruminate and rugose. The reticulate type is the most common among the studied species, but the variation in alignment, size and shape of its composing cells provide further evidence that are useful as diagnostic characteristics. However, the type of sculpturing is more useful for separating species within the sections, rather than correlating them to each other. For example, sect. Filipendula show four different types of sculpturing. Therefore, nutlet microsculpturing is not useful in separating large natural groups like sections in this genus. It seems also that contrary to other genera of Lamiaceae, nutlet characters are of low phylogenetic value in this genus.
 
Full-Text [PDF 2738 kb]   (102 Downloads)    
Type of Study: Original Article | Subject: Plant Biology
Received: 2018/03/18 | Revised: 2018/06/30 | Published: 2018/06/10 | ePublished: 2018/06/10

Add your comments about this article : Your username or Email:
CAPTCHA code

Send email to the article author


© 2018 All Rights Reserved | Nova Biologica Reperta

Designed & Developed by : Yektaweb