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Latest Pteridophyta Stories

2014-04-29 16:29:36

OTTAWA, April 29, 2014 /CNW/ - Issue Fiddleheads are a green vegetable that is typically available in the spring. They grow along the banks of rivers and streams and are sometimes sold at farmer's markets, roadside stands and grocery stores. Fiddleheads can be safely eaten, but can cause food poisoning if they haven't been properly cleaned, prepared, cooked and stored. There have been reported cases in Canada and the U.S. of people getting sick from eating raw or...

2011-06-24 12:51:39

Japanese royal fern tops list for formaldehyde removal effectiveness Formaldehyde is a major contaminant of indoor air, originating from particle board, carpet, window coverings, paper products, tobacco smoke, and other sources. Indoor volatile organic compounds (VOCs) such as formaldehyde can contribute to allergies, asthma, headaches, and a condition known as ''sick building syndrome". The concern is widespread; a 2002 report from the World Health Organization estimated that undesirable...

2010-06-11 13:21:04

Isolating a gene that allows a type of fern to tolerate high levels of arsenic, Purdue University researchers hope to use the finding to create plants that can clean up soils and waters contaminated by the toxic metal. The fern Pteris vittata can tolerate 100 to 1,000 times more arsenic than other plants. Jody Banks, a professor of botany and plant pathology, and David Salt, a professor of horticulture, uncovered what may have been an evolutionary genetic event that creates an arsenic pump of...

2010-04-01 13:24:10

Dehydrin proteins are found to be a possible key to desiccation-tolerant plants such as the resurrection fern Drought can take a serious toll on plants and animals alike. When cells are deprived of water, they shrink, collapsing in upon themselves and, without water as a medium, chemicals and enzymes inside the cells may malfunction. However, some plants, like the aptly named "resurrection fern" (Polypodium polypodioides), can survive extreme measures of water loss, even as much as 95% of...

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2010-03-31 13:39:28

The "vegetable lamb" plant "” once believed to bear fruit that ripened into a living baby sheep "” produces substances that show promise in laboratory experiments as new treatments for osteoporosis, the bone-thinning disease. That's the conclusion of a new study in ACS' monthly Journal of Natural Products. Young Ho Kim and colleagues point out that osteoporosis is a global health problem, affecting up to 6 million women and 2 million men in the United States alone. Doctors know...

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2009-10-14 15:15:10

The "vegetable lamb" plant "” once believed to bear fruit that ripened into a living baby sheep "” produces substances that show promise in laboratory experiments as new treatments for osteoporosis, the bone-thinning disease. That's the conclusion of a new study in ACS' monthly Journal of Natural Products. Young Ho Kim and colleagues point out that osteoporosis is a global health problem, affecting up to 6 million women and 2 million men in the United States alone. Doctors know...

2009-07-02 12:18:18

 As flowering plants like giant trees quickly rose to dominate plant communities during the Cretaceous period, the ferns that had preceded them hardly saw it as a disappointment.In fact, they flourished. While modern tropical rain forests were becoming established, ferns climbed aboard, and experienced a flowering of their own species diversity."The canopy is there and -- boom -- diversification," said Duke University researcher Eric Schuettpelz, who is completing a post-doctoral...


Latest Pteridophyta Reference Libraries

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2008-06-15 19:41:38

The Hawaiian Tree Fern or Male Tree Fern (Cibotium menziesii), is a species of tree fern, of the genus Cibotium which is endemic to the islands of Hawaii, and is found on all the windward Hawaiian islands. The habitat of this species is damp forest areas, usually at elevations varying between 1,000 and 6,000 feet. They can grown on the ground or epiphytically, growing on trees. It is also very adaptable and can withstand cool winter temperatures. These ferns can grow up to 35 feet tall but...

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2008-06-15 19:37:30

The Royal Fern (Osmunda regalis), is a species of Osmunda, native to Europe, Africa, Asia, and the Americas, growing in woodland bogs. The species is sometimes known as flowering fern due to the appearance of its fertile fronds. The name derives from its being one of the largest and most imposing European ferns. In many areas, it has become rare as a result of wetland drainage for agriculture. It is a deciduous herbaceous plant which produces separate fertile and sterile fronds. The...

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2008-06-15 19:35:52

The Interrupted Fern (Osmunda claytoniana), is a fern native to eastern North America and eastern Asia. In eastern North America it occurs from southern Manitoba, Ontario, Quebec (up to the tree line), east to Newfoundland and south through the Appalachian mountains down to Georgia and west to the Mississippi River. In Asia, it is found in the Himalaya, southern China, Japan, Korea, and Taiwan. It is found in humid zones, mostly in forests, but also in more open biomes, although rarely in...

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2008-06-15 19:32:19

The Cinnamon Fern (Osmunda cinnamomea), is a species of fern in the genus Osmunda. It is native to the Americas and eastern Asia, growing in moist woodlands. In North America it occurs from southern Labrador west to Ontario, and south through the eastern United States to eastern Mexico and the West Indies; in South America it occurs west to Peru and south to Paraguay. In Asia it occurs from southeastern Siberia south through Japan, Korea, China and Taiwan to Myanmar, Thailand and Vietnam....

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2008-06-15 19:31:02

The Whisk Fern (Psilotum nudum), is a genus of fern-like vascular plants, one of two genera in the family Psilotaceae, order Psilotales, and class Psilotopsida (the other being Tmesipteris). The distribution of Psilotum is tropical and subtropical, in the New World, Asia, and the Pacific. The highest latitudes known are in South Carolina and southern Japan for P. nudum. In the U.S., one species is found from Florida to Texas, the other in Hawaii. They had traditionally been thought not to...

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Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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