Volume 6, Issue 3 (10-2019)                   nbr 2019, 6(3): 338-346 | Back to browse issues page


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Siadati S, Saeidi Mehrvarz S, Salmaki Y. Nutlet micromorphology of the genus Marrubium L. and allies and its systematic implication (Lamiaceae: tribe Marrubieae). nbr 2019; 6 (3) :338-346
URL: http://nbr.khu.ac.ir/article-1-3232-en.html
Center of Excellence in Phylogeny of Living Organisms in Iran, & Department of Plant Science College of Science, University of Tehran , yasamansalmaki@yahoo.com
Abstract:   (4659 Views)
Nutlets of 20 taxa of the tribe Marrubieae were examined by scanning electron microscopy (SEM) and detailed descriptions of nutlet micromorphological features for all examined taxa are provided. The nutlets exhibited variation in size, shape, color and surface sculpturing. The nutlets shape of most species studied is ovate, but rounded, broad ovate, elliptic, lanceolate, triangular and oblong can also be found in a few species. Six basic types of the sculpturing pattern of nutlet surface can be distinguished: reticulate, foveolate, scalariform, ruminate, pusticulate and colliculate-granulate. The most common type of nutlet sculpturing among the studied species is reticulate, but the variation in size and shape of their composing cells provided useful diagnostic characters. Our investigation revealed that the type of sculpturing was more useful in taxon delimitation among Marrubium species and allies at the species rank.
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Type of Study: Original Article | Subject: Plant Biology
Received: 2019/01/6 | Revised: 2019/10/26 | Accepted: 2019/02/12 | Published: 2019/10/19 | ePublished: 2019/10/19

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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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