Typification of the binomial Sedum boissierianum Hausskncht Crassulaceae
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چکیده
منابع مشابه
Sedum Peltatum (crassulaceae): a New Species from Anhui, China
Sedum peltatum M.L. Chen et X.H. Cao, belonging to the family Crassulaceae DC., is described and illustrated from China as a new species. It was collected from Nanwu canyon, Huangnikeng valley, Gaokeng valley and Qingshikeng valley in the Jiulong Mountains, China (P. R.). Morphological diagnostic characters of closely related species are also discussed. Introduction Sedum L. is the largest and ...
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گونه Sedum elburzense از ایران به عنوان گونه‌ای جدید نامگذاری و معرفی می‌گردد. این گونه نزدیک به گونه S. nanum است که قبلاً از کوه دنا معرفی گشته است. اختلاف 2 گونه توضیح داده می‌شود.
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Climate change during the Quaternary played an important role in the differentiation and evolution of plants. A prevailing hypothesis is that alpine and arctic species survived glacial periods in refugia at the periphery of glaciers. Though the Rocky Mountains, south of the southernmost extent of continental ice, served as an important glacial refuge, little is known about how climate cycles in...
متن کاملdeterminant of the hankel matrix with binomial entries
abstract in this thesis at first we comput the determinant of hankel matrix with enteries a_k (x)=?_(m=0)^k??((2k+2-m)¦(k-m)) x^m ? by using a new operator, ? and by writing and solving differential equation of order two at points x=2 and x=-2 . also we show that this determinant under k-binomial transformation is invariant.
15 صفحه اولIndirect Genetic Effects from Competition in the Clonal Herb Sedum album (Crassulaceae)
Recent years have seen increasing interest in indirect genetic effects, i.e. influences on the phenotype that depend on the genotype of other conspecific individuals; however, the empirical evidence for such effects is still limited, especially in wild plant species. The present study of the clonal herb Sedum album assessed direct and indirect genetic effects on performance-related traits in a ...
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ژورنال
عنوان ژورنال: Annals of Forest Research
سال: 2016
ISSN: 2065-2445,1844-8135
DOI: 10.15287/afr.2016.496