Persicaria jucunda var. rotunda (Polygonaceae, Persicarieae), a distinct distylous taxa raised to specific rank
نویسندگان
چکیده
منابع مشابه
Molecular phylogeny of Persicaria (Persicarieae, Polygonaceae)
Relationships within the Polygonaceae have been recently examined using rbcL sequences, with an emphasis on Polygonum and its segregates. Here we test these results with respect to Polygonum (sensu lato) with an expanded dataset, including additional species and gene regions. Specifically, we focus on inferring the relationships of Eupersicaria (Polygonum sect. Persicaria in many prior treatmen...
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Pond populations in Cape Cod described as Persicaria puritanorum (≡ Polygonum puritanorum) have been treated by recent authors as a synonym of P. maculosa (≡ Polygonum persicaria) based on gross morphology. However, consistent differences in leaf and inflorescence features raise the question as to whether this is an extreme phenotype of P. maculosa, an ecotype of that species, or a distinct tax...
متن کاملAllopolyploid speciation in Persicaria (Polygonaceae): insights from a low-copy nuclear region.
Using a low-copy nuclear gene region (LEAFY second intron) we show multiple instances of allopolyploid speciation in Persicaria (Polygonaceae), which includes many important weeds. Fifteen species seem to be allopolyploids, which is higher than the number found in previous comparisons of chloroplast DNA and nuclear ribosomal internal transcribed spacer (nrITS) phylogenies. This underestimation ...
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In this paper we classify fuzzy subgroups of a rank-3 abelian group $G = mathbb{Z}_{p^n} + mathbb{Z}_p + mathbb{Z}_p$ for any fixed prime $p$ and any positive integer $n$, using a natural equivalence relation given in cite{mur:01}. We present and prove explicit polynomial formulae for the number of (i) subgroups, (ii) maximal chains of subgroups, (iii) distinct fuzzy subgroups, (iv) non-isomorp...
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زیرگونه Persicaria lapathifolia subsp. nodosa برای اولین بار در فلور ایران گزارش می‌شود. تنوع ریخت شناسی این زیرگونه مورد بررسی قرار گرفته و تفاوت‌هایی نیز در بشره پوشاننده گلبرگ در مقایسه با زیرگونه تیپ مشاهده شد. تصویر زیرگونه به همراه تصویر بشره پوشاننده گلبرگ نمایش داده می‌شود.
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ژورنال
عنوان ژورنال: PhytoKeys
سال: 2019
ISSN: 1314-2003,1314-2011
DOI: 10.3897/phytokeys.126.35442