THE REPRODUCTIVE BIOLOGY OF ASCLEPIAS TUBEROSA: I. FLOWER NUMBER, ARRANGEMENT, AND FRUIT-SET
نویسندگان
چکیده
منابع مشابه
Corneal Toxicity Following Exposure to Asclepias Tuberosa
PURPOSE To present a case of corneal toxicity following exposure to milky plant latex from Asclepias tuberosa. METHODS A 70-year-old female presented with blurred vision and pain in her left eye after handling an Ascepias tuberosa. Clinical examination revealed a corneal stromal oedema with small epithelial defects. The corneal endothelium was intact and folds in Descemets membrane were obser...
متن کاملPregnane glycosides from the roots of Asclepias tuberosa.
Sixteen glycosides of pregnanes, including ikemagenin, lineolon, and a new pregnane, 3beta8beta,14beta,15beta,16alpha-pentahydroxy-++ +5alpha-pregnan-20-one, termed pleurogenin, were isolated from the roots of Asclepias tuberosa. Among ikemagenin and lineolon glycosides, one (1) was a known glycoside, and eight (2-7, 10, 13) were glycosides with new combinations of ikemagenin or lineolon and kn...
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BACKGROUND AND AIMS In the UK, the flowers of fruit-bearing hedgerow plants provide a succession of pollen and nectar for flower-visiting insects for much of the year. The fruits of hedgerow plants are a source of winter food for frugivorous birds on farmland. It is unclear whether recent declines in pollinator populations are likely to threaten fruit-set and hence food supply for birds. The pr...
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Variation in plant and floral size can have conflicting effects on pollination and fruit production in flowering plants. This research examines the contributions of plant height, flower size and pollinator visitation to reproductive success in four populations of Iris tuberosa. The plants were pollinated exclusively by hymenopteran species, primarily during sunny days. Pollination supplementati...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1980
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1980.tb04453.x