Results 171 to 180 of about 2,054 (190)
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REDUCTION OF THE ANDROECIUM IN SPERGULARIA MARINA (CARYOPHYLLACEAE)
Acta Botanica Neerlandica, 1970SUMMARY A study of the variation in the number of fertile stamens in flowers of Spergularia marina revealed that this number fluctuates between 0 and 10 but is usually 2 to 5. A statistical analysis showed that reduction did not take place at random, because certain stamens tend to disappear more often than other ones, the progressive reduction also
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A Review of the Androecium in Sterculiaceae with a Key to the Genera
NelumboNo Abstract.
K. C. Malick, B. Safui
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Nonspiral androecium and gynoecium of Sagittaria latifolia
Canadian Journal of Botany, 1973Developmental studies do not confirm the general opinion that the androecium or the gynoecium is spiral in Sagittaria latifolia. After the inception of three sepal primordia, three bulges (petal–stamen primordia) are formed on radii alternating with the sepal primordia.
V. Singh, R. Sattler
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Floral development of Moraceae species with emphasis on the perianth and androecium
Flora, 2018Abstract The mulberry and fig family (Moraceae) has tiny flowers with a single whorled or absent perianth and inner whorls with a reduced number of organs. Relevant questions about this reduced floral structure still remain unresolved. Thus, we studied the ontogenic processes that culminate in such a reduced flower, as well as the close relationship ...
Viviane Gonçalves Leite +2 more
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Evolution of the palm androecium as revealed by character mapping on a supertree
2011Over the last two decades, our insight into the phylogenetic relationships among groups of living organisms has increased significantly (see, for example, the Tree of Life Project, Maddison et al., 2007). Since the first burst in phylogenetic analyses occurred in the early nineties triggered by the discovery of the PCR technique (Saiki et al., 1988 ...
Nadot, Sophie +3 more
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Reevaluation of the perianth and androecium in Caryophyllales: implications for flower evolution
Plant Systematics and Evolution, 2013The Caryophyllales have the highest diversity in androecial patterns among flowering plants with stamen numbers ranging from 1 up to 4,000. Thanks to the recent progress in reconstructing the phylogeny of core Caryophyllales, questions of floral evolution, such as the origin and diversification of the androecium, can be readdressed.
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Stamen and pollen development in Menispermaceae with contrasting androecium structure
Plant Systematics and Evolution, 2022Hui-Yan Zhang +10 more
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