Understanding evolutionary transformations of gynoecia in Apiales is in part complicated by the fact that precise relationships between Pittosporaceae and other monophyletic groups within Apiales have not yet been fully resolved. As suggests, ‘floral morphology of Pittosporaceae is quite probably derived, rather than representing the plesiomorphic condition from which the distinctive flowers of evolved’. Although no morphological constraints for such transitions have been suggested (, ), it is highly questionable whether the condition found in Pittosporaceae should be regarded as ancestral within the Apiales. ).Īs these two types of gynoecia are distinctive at the family level, a trend of evolutionary transition between them within Apiales could be of phylogenetic interest. As a result, members of this family have unilocular ovaries with a single cavity formed between adjacent carpels (e.g. Unlike these three families, the symplicate zone in gynoecia of the Pittosporaceae is much longer than the synascidiate zone, and the ovules are arranged along this zone. These gynoecia are pseudomonomerous (, ). The few known cases of unilocular ovaries in members of Araliaceae and Apiaceae appear to result from carpel reduction, i.e. In a cross-zone (also referred to as a ‘Querzone’ e.g. The Araliaceae, Myodocarpaceae and Apiaceae possess mainly bi- or multilocular ovaries in a gynoecium with a long synascidiate zone and a very short symplicate zone, with the ovules inserted at the transition between the two zones, i.e. In particular, the largest and obviously closely related families of Apiales, namely Araliaceae, Myodocarpaceae and Apiaceae, are similar to each other in the structure of their gynoecia whereas the Pittosporaceae is very distinct from them. INTRODUCTION Although the phylogeny and morphology of the Apiales have been investigated by many botanists, and significant progress has been made in this area of research in recent years (e.g., ), some important aspects of floral evolution in the order remain enigmatic. In this genus, the pseudoparacarpy has probably resulted from a decrease in seed number in the course of the transition from zoochory to anemochory. The term ‘pseudoparacarpy’ (‘false paracarpy’) is proposed to describe this condition, which has not been reported to date for indehiscent fruits in any taxa other than Seemannaralia. The Seemannaralia fruit resembles the paracarpous gynoecium but its ground plan is very different because the central cavity is formed by mechanical rupture of the septum. Its preanthetic and anthetic gynoecium has nearly the same structure as gynoecia of most other Araliaceae. CARL ZEISS JENA MICROSCOPE SERIAL NUMBERS DATES FRUIT ISODownload Fifa 2006 World Cup Torrent Iso Files.Ĭonclusions Despite literature data, the synascidiate zone is well developed in the gynoecium of Seemannaralia, and the ovules are attached to the cross-zone. When this ovule outgrows the available space in the locule, the septum is ruptured, forming a united cavity of two carpels. In the course of fruit development, the growth of one ovule stops while another ovule develops into the mature seed. The fruit is unilocular: its central cavity is occupied by a single large seed. Each carpel contains one fertile ovule attached to the cross-zone, and one sterile ovule as well. Each ovary locule corresponds to a carpel whose ascidiate part is distinctly longer than the plicate part. Key Results Ovaries in the flowers of Seemannaralia are bilocular. Design Variations, Calculation Dates and Serial Numbers of Carl Zeiss, Jena lenses for. Right: C Zeiss Jena company trade name engraved on Stage of microscope Nr. CARL ZEISS JENA MICROSCOPE SERIAL NUMBERS DATES FRUIT SERIESOn the Stage top and to the left of the company name are also engraved the microscope production and the series (compound microscope) serial numbers too. This instrument does bear the simple “C Zeiss Jena” engraving on the slide Stage. Literature for the Microscopy business group and the. Carl Zeiss Jena Microscope Serial Numbers Dates Fruit Average ratng: 9,2/10 1502reviews
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