News tagged with petals
Petal
Petals are modified leaves that surround the reproductive parts of flowers. They often are brightly colored or unusually shaped to attract pollinators. Together, all of the petals of a flower are called a corolla. Petals are usually accompanied by another set of special leaves called sepals lying just beneath the corolla. When the petals and sepals of a flower look similar they are called tepals. Examples of plants in which the term tepal is appropriate include genera such as Aloe and Tulipa. Conversely, genera such as Rosa and Phaseolus have well-distinguished sepals and petals.
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Blowing in the wind: How hidden flower features are crucial for bees
As gardeners get busy filling tubs and borders with colourful bedding plants, scientists at the Universities of Cambridge and Bristol have discovered more about what makes flowers attractive to bees rather than humans. Published ...
May 28, 2012 |
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Egg Cetera #4: Mayonnaise and the making of masterpieces
In the fourth report of our Egg Cetera series on egg-related research, conservator Spike Bucklow describes how far the simple egg has extended the richness and splendor of paintings.
Apr 09, 2012 |
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Genetic research places flower shape on drawing board
Flowers such as sunflowers and gerberas are made up of two types of smaller flowers: ray and disk flowers. Dutch researcher Anneke Rijpkema has discovered the genes responsible for the distribution between ...
Mar 27, 2012 |
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Scientists discover why buttercups reflect yellow on chins
Scientists have found that the distinctive glossiness of the buttercup flower (Ranunculus repens), which children like to shine under the chin to test whether their friends like butter, is related to its un ...
Dec 13, 2011 |
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Study of flower petals shows evolution at the cellular level
A new study of flower petals shows evolution in action, and contradicts more that 60 years of scientific thought.
Nov 17, 2011 |
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Oldest known Eucalyptus fossils found in South America
(PhysOrg.com) -- Fossils of leaves, flowers, fruits and buds found in Patagonia, Argentina, have been identified as Eucalyptus and date to 51.9 million years ago, making them the oldest scientifically valida ...
Other Sciences / Archaeology & Fossils
Jul 19, 2011 |
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Development of keeled flowers
A study using scanning electron microscopy has revealed that the keeled petals of Leguminosae and Polygalaceae are fundamentally different.
Mar 25, 2011 |
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Withering well can improve fertility
Contrary to a thousand face cream adverts, the secret of fertility might not be eternal youth. Research by the ecologist Dr. Carlos Herrera, a Professor of Research at the Consejo Superior de Investigaciones Científicas ...
Sep 24, 2010 |
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Bees that nest in petals
A rare species of solitary bees found in the Middle East, Osima avoseta, constructs its nests from petals, creating chambers of pink, yellow, blue, and purple for its larvae. The colorful nests moist, secure ...
May 04, 2010 |
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Study sheds light on microscopic flower petal ridges
(PhysOrg.com) -- Microscopic ridges contouring the surface of flower petals might play a role in flashing that come-hither look pollinating insects can't resist. Michigan State University scientists and colleagues ...
Dec 22, 2009 |
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