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Latest Leaf Stories

Software Calculates Leaf Area From Digital Images
2014-08-18 03:30:08

American Journal of Botany Leaf measurements are often critical in plant physiological and ecological studies, but traditional methods have been time consuming and sometimes destructive to plant samples. Researchers at the University of California, Davis, have developed Easy Leaf Area—a free software written in an open-source programming language—to allow users to accurately measure leaf area from digital images in seconds. "It has always been a challenge to measure leaf surface...

tree height and climate
2014-08-16 06:52:39

April Flowers for redOrbit.com - Your Universe Online Trees species range in size from the Dwarf Willow at 2.5 inches to the coastal Redwood which averages 50 feet, but can top out at over 300 feet. As the coastal Redwood shows, even within one tree species, there can be a wide range of sizes. What limits the height, even within a single species? Different theories attribute this range to the amount of photosynthetic energy allocated to new leaf production, and the ability to hoist water...

Surprising Spread Of Spring Leaf-out Times: Study
2014-06-19 03:54:51

Richard Primack, Boston University Medical Center Observing 1,600 species at 8 botanical gardens globally should impact climate-change models Despite conventional wisdom among gardeners, foresters and botanists that woody plants all "leaf out" at about the same time each spring, a new study organized by a Boston University biologist found a surprisingly wide span of as much as three months in leaf-out times. Significantly, observations the past two springs of 1,597 woody plants in...

Tracking Movement Of Sugar In Plants
2014-04-09 12:22:18

By Karen McNulty Walsh, Brookhaven National Laboratory A new study published in the Proceedings of the National Academy of Sciences by scientists at the University of Queensland, Australia, overturns a long-held theory in plant science. Researchers at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory who are co-authors on this paper conducted critical radiotracer studies that support the new theory that plant sugars play a dominant role in regulating branching at...

Photos And Lab Analysis Needed For Leaf Study
2014-01-23 15:27:34

Brown University Automated remote photography is a convenient, labor-saving research tool for tracking leaf function and doing forest research. But does photography mirror what's actually happening on the ground? A new study finds photography accurately tracks the timing of red pigments in the fall, but the timing of green in the spring and summer — not so much. Every picture tells a story, but the story digital photos tell about how forests respond to climate change could be...

UCLA Biologists Uncover The Secrets Involved In Leaf Size, Shape
2013-10-31 14:36:02

Alan McStravick for redOrbit.com - Your Universe Online Trees, and more specifically, the leaves that adorn them, having predated human's foray into scientific learning, should harbor no mysteries at this point. However, nature continues to surprise us. Whether it is news of gold in eucalyptus leaves, as we learned last week with news out of Australia, or the simple yet profound truth of the math that governs internal leaf structure, human understanding continues to expand with the...

Beetles In Central And South America Show Signs Of Maternal Instincts
2013-09-26 11:15:45

Pensoft Publishers Hidden in the thick foliage of tropical forests a subfamily of colorful beetles hides the secrets of the earliest stages of social behavior, showing explicit signs of maternal instincts and care. An international team of scientists from the Smithsonian Tropical Research Institute, Centro Universitário de Lavras, Staatliches Museum für Naturkunde Karlsruhe, and Université libre de Bruxelles looked into the complex subsocial behaviors present in the extraordinary...

Genetic And Hormonal Signals Responsible For Shape, Function Of Leaves
2013-05-01 09:48:37

Brett Smith for redOrbit.com - Your Universe Online As the spring flowers (finally) begin to bloom across the United States, take a closer look and you may find a whole host of genetic and hormonal signaling that is responsible for the shape and function of various aspects of the leaves of plants. In the latest edition of the open access journal PLoS Biology, a group of UK biologists has detailed new insights into the differences and similarities between flowering plants´ petal and...


Latest Leaf Reference Libraries

Leaf Insects, Phylliidae
2014-08-05 10:01:39

Phylliidae is a family of insects most commonly known as leaf insects or walking leaves, which can be found in Southeast Asia and South Asia to Australia. Although it is classified as a family, there is no general agreement on its classification, as many suggest that the family is actually a large taxon that should contain separate families of leaf insects. It is thought that this family has changed little over long periods of time, due to fossil evidence found of a forty-seven million year...

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2009-06-17 12:28:21

The Coco (Fagara coco or Zanthoxylum coco) is a species of evergreen tree native to Argentina and Bolivia. It grows in wild, mostly hilly, spinniferous (thorny or spiny) forests. Its habitat is found along the hilly forest of the Sierra Pampeana. This plant is found either in small isolated groups or standing alone. Other common names for this plant are cochucho or "smelly sauco". The Coco is a medium sized tree ranging from 20 to 26.25 feet tall. Its foliage is abundant and has paired...

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Word of the Day
caparison
  • A cloth or covering, more or less ornamented, laid over the saddle or furniture of a horse, especially of a sumpter-horse or horse of state.
  • Clothing, especially sumptuous clothing; equipment; outfit.
  • To cover with a caparison, as a horse.
  • To dress sumptuously; adorn with rich dress.
This word ultimately comes from the Medieval Latin 'cappa,' cloak.
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