12/1/2023 0 Comments Primula auricula pflege![]() Several studies of the systematics of sect. Recent molecular analyses clearly supported the monophyly of sect. Section Auricula, however, has colporate pollen grains, is endemic to Europe and has hexaploid, hypohexaploid or hexaploid-/hypohexaploid-derived chromosome numbers ( Kress, 1963, 1989), as compared to sects Parryi and Cuneifolia, which have syncolpate pollen grains and are tetraploid and diploid or tetraploid, respectively. Auriculastrum in its traditional circumscription. Cuneifolia as the remaining two sections of subgen. Parryi and to the East Asian/North American sect. It is not well-defined morphologically and is very similar to the North American sect. Section Auricula is characterized by involute leaf vernation, smooth leaf surfaces, bracts which are shorter than the pedicels, obtuse calyx teeth, the frequent occurrence of exannulate flowers, and colporate pollen grains. form a monophyletic group ( Mast et al., 2001). A recent molecular analysis of Primula and related genera demonstrated that subgen. Auriculastrum Schott traditionally recognized ( Richards, 1993, 2003). Auricula Duby, is one of the 37 sections of the genus and one of three sections of subgen. ![]() ![]() 500 species distributed largely in the Sino-Himalayan region ( Hu & Kelso, 1996), and is one of the three most popular horticultural plant groups ( Richards, 1993, 2003). Phylogenetic relationships in the section are discussed based on morphological and molecular variation and geographical distribution.Īllopolyploid, phylogeny, supraspecific subdivision INTRODUCTION clusiana is postulated to be an allopolyploid species. resolved in the molecular study, respectively P. balbisii Lehm., representing the northern and the southern populations of P. Auricula is classified into two subsections, 25 species and six subspecies. 1100 herbarium specimens, field observations and molecular (ITS, AFLPs) evidence, Primula sect.
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