Showing posts with label Botany. Show all posts
Showing posts with label Botany. Show all posts

Wednesday

Rainbow Eucalyptus

*Gorgeous Tree! Apparently they have them here. Never seen any though. :(
Amplify’d from www.kuriositas.com
It looks like it may have been used as part of a new advertising campaign by a paint company. However the Rainbow Eucalyptus (or Eucalyptus deglupta to give it its Latin name) comes in many of the colors of the rainbow.
Even stranger, for a tree not widely seen or known, it is the only eucalyptus species that is found in the northern hemisphere – naturally. Its primary use to growers – and here is the shame in a way – is for pulpwood. This magnificently hued tree is used in the manufacture of paper.  White paper.
Of course it is also grown for ornamental purposes. Most people, when they first encounter a rainbow eucalyptus ask the obvious question. Why does it look the way it does? What happens is that each year patches of bark are shed – but at different times. This exposes the bright green inner bark that you can see in many of these pictures.
The almost luminescent bark then matures and this means the color gives away to the rainbow effect. First it turns blue and then goes though orange, purple and maroon. Altogether the tree gives the impression of being painted – or perhaps turned this way by some mischievous woodland faun.
The tree is found mostly in New Guinea, New Britain and Sulawesi. In the pulpwood plantations of the Philippines it is the most common tree used for the production of pulpwood. It is a huge evergreen and can grow up to seventy five meters tall
It has not been used as a plantation species for that long – it is thought that it was taken from its indigenous area of Mindanao to other areas in the Philippines in the early part of the twentieth century. It extended to New Guinea in the nineteen fifties. By the sixties it had made it as gar as the Congo and Sri Lanka. It is now referred to as a pantropic species.
Read more at www.kuriositas.com

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Monday

Passive-Aggressive, Green and Very Hungry!

Amplify’d from www.darkroastedblend.com

Carnivorous Plants: Hungry & Gorgeous 


Passive-Aggressive, Green and Very Hungry!

Venus Entrapment
The poster-plant for botanical carnivores has got to be the legendary Venus Flytrap. A resident of swamps and bogs, the flytrap has evolved a dramatic solution to its lack-of-nutrient diet: it catches flies – and pretty much anything big enough to get caught. What's amazing about this plant is its mechanism. Anything that happens to stumble between the two halves of its unique mechanism will find itself in caught in a quickly-snapping-shut botanical bear trap. What's even worse is that after being caught the Venus then fuses those leaves together, turning them into a kind of stomach to digest its prey. What's extra-fascinating is that the trap has two triggers, and that both of them have to be tripped for the leaves to snap shut, to avoid misfires.
Alluring Perfume in a Deadly Pitcher
While the flytrap looks like something out of a monster movie it rarely grows to any really impressive size – unless you happen to be a housefly. But one carnivorous plant that really is impressive, and recently discovered, is what's called a passive hunter. Instead of using snapping traps its family instead has evolved fluid-filled pitfalls lined with very slippery sides, and baited with a very alluring perfume.
Pitcher plants come in a wide variety of shapes, types, and sizes – including a special one native to the Philippines. Most pitchers feast on bugs and sometimes small lizards: pretty much whatever's unfortunate enough to get seduced by the plant's alluring smells and is small enough to fit down its leafy throat. While its mechanism is similar to its smaller kin, nepenthes attenboroughii (named after journalist and TV presenter David Attenborough), has traps that are large enough to catch not only bugs, lizards, and – what's more than a bit scary – rats (more info).
A Cobra Lily
"A pale green butterfly senses nectar and alights on a rare California pitcher plant. Also called a cobra lily for its bulbous head, forked tongue, and long tubular pitcher, it grows in mountainous parts of the West Coast and is an oddity among its kind. Although it traps prey in a manner similar to other pitcher plants, its leaves contain no digestive enzymes. Instead, it relies on symbiotic bacteria to turn captured insects into usable nutrients." (see the whole gallery).
Pretty, Pretty Sundew
Another device carnivorous plants use is to make its prey stick around long enough to be digested. The sundew, for instance, has leaves covered with dozens of tiny stalks, and each stalk is covered with very, very, very sticky stuff. When a bug happens to walk across these leaves it gets – you guessed it – very, very, very stuck. What's more, though, is that the plant then contracts, bringing more and more of those stalks into contact with its prey, completely trapping and then digesting it:
(images credit: Helene Schmitz, National Geographic)
Enter the Kudzilla!
But then there's the other, the monster, the beast, the chlorophyll creature that could – if any plant could be – considered a bona fide killer. Innocently imported to the US in 1876 from its native Japan, it was sold as a botanical miracle: ink, paper, jelly, tea, you name it and you could make it from this wonderful plant. But what no one could expect that this so-called marvel would have darker roots.
(image credit: MissyPrince)
(image credit: Patrick Walker)
Kudzu is its name and right now it covers – in some cases quite literally – a huge part of the Southeastern United States. While bamboo is a racehorse at two foot a day, Kudzu is hardly a slacker at covering half that distance in the same amount of time. In the South there are homes, cars, houses and entire communities that have been hungrily, potentially, covered – and subsequently strangled – by this ferociously determined plant.
(image credit: Kyle Telechan)
Sure, kudzu may not be carnivorous, but it's green infestation, it's emerald conquest, it's verdant domination is definitely worth a mention – and maybe a serious shudder of fear. Or, as they sometime say in the South: "A cow won't eat kudzu, but kudzu will definitely eat a cow."Read more at www.darkroastedblend.com
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