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wjbrown 03-19-2007 10:15 PM

Is this an orchid?
 
1 Attachment(s)
A friend works for a sugar cane company that is clearing some timber to plant more cane. He got this for me from a tree that had been felled and was destined to be burned. He is working near the Rio Grande River on the Sao Paulo side, near Uberaba. I can't imagine that it's not an orchid, but I've never seen anything like it.

dave b 03-20-2007 12:02 AM

I am trying very hard to not go off on a tangent about the unfortunate clearing of more forests in this world in order to continue feeding the Machine. (we, the human race is the Machine)

Definately an orchid. Possibly a Cycnoches, or Catasetum.

You now have the opportunity to participate in orchid conservation. The best way is to keep the forests alive in which they live. Since its a bit late on this one... Learn what you can about it, and grow it well. Many were burned and are gone from this earth forever. But this one can live with you for a very long time.

jim blanford 03-20-2007 12:20 AM

Dave: Very nice response I agree with you 100% Thank you. Jim.

Frdemetr 03-20-2007 09:09 AM

I agree wiyh Dave, definately a catasetinea. Take care with spider mites when the air is hot and dry (put it hanged just above a tray or bowl with wet sand, and keep the sand wet all the time - the sand, not the orchid!); mists only in the morning, in advance of high temperatures, never afternoon (catasetinae like to sleep dry). I think in Franca conditions this is the best way to grow catasetinae mounted.
Frederico

littlefrog 03-20-2007 09:32 AM

I'd say catasetum, not cycnoches. Only way to tell is from the flowers. Nice looking plant.

wjbrown 03-20-2007 04:40 PM

Thank you, everybody. Especially frederico for the cultural advice.

I'm excited about being able to preserve this one, though I'm still unsure about light requirements. I have a weeping willow like tree (light shade), and also a mulberry (deeper shade). Which do you think would be better?

I try to keep all the sand containers wet in the dry season, and also spray the grass underneath them. Hadn't thought about their being especially sensitive to late afternoon wettings.

What do you think of using tobacco insecticide if the spider mites do appear?

Guess I'll just have to keep an eye on it.

littlefrog 03-20-2007 04:52 PM

I'd avoid the tobacco. Can have tobacco mosaic virus in it... I'd just use a mild dish soap (a few drops in a liter of water) and spray with that. Get all surfaces of the leaf.

I really don't have anything to judge your light levels by, I'm sure they are far higher than mine. I'd start with the heavier shade and experiment with moving it to the lighter shade. If the leaves are dark green, it isn't getting enough light.

Frdemetr 03-20-2007 10:22 PM

Just thinking: native forest was cleared to plant sugar cane; sugar cane plantation exists mainly to obtain ethanol, added (20 to 25%) to gas in Brazil, to get oil economy and obtain a more 'clean' fuel; ethanol is considered a 'ecologically correct' fuel, because the CO2 produced when it buns could be return, by photosinthesis, to sugar cane plant, and do not get worse the global heat. Conclusion: here in Brazil we destroy the native forest to save the planet, producing a clean and 'green' fuel, the ethanol!
Hmmm....I don't know....let's burn gas...or use a bike....
Frederico

dave b 03-20-2007 11:05 PM

Quote:

Originally Posted by Frdemetr (Post 22924)
Just thinking: native forest was cleared to plant sugar cane; sugar cane plantation exists mainly to obtain ethanol, added (20 to 25%) to gas in Brazil, to get oil economy and obtain a more 'clean' fuel; ethanol is considered a 'ecologically correct' fuel, because the CO2 produced when it buns could be return, by photosinthesis, to sugar cane plant, and do not get worse the global heat. Conclusion: here in Brazil we destroy the native forest to save the planet, producing a clean and 'green' fuel, the ethanol!
Hmmm....I don't know....let's burn gas...or use a bike....
Frederico

Good thought process..welcome to planet earth. Quote from an old friend that fits me well... 'I feel like my people left me here when i was about 5, and ive been waiting for them to come get me ever since'.

terrestrial_man 03-22-2007 04:24 AM

If we survive long enough it will all be managed anyway. Nature will be whatever we plant or allow to exist. The notion of wilderness will be a memory gone as it would be for someone who thinking that they have found that perfect far away place that no one could have found before runs across an empty beer can! Definitely not litter from heaven!

wjbrown 03-27-2007 07:31 PM

I knew the story of how the catasetum came to me would generate a storm of indignation, sorry.

I just went to our annual orchid exposition and paid special attention to the catasetums. They are bizarre! The sign said not to touch the orchids, but my friend's daughter showed me how to hold my finger NEAR one of the more mature blooms; I felt a strong thump, and ended up with a clump of pollen stuck firmly on my fingernail. Amazing!

Exhaustive 04-19-2007 05:03 PM

Why did you feel a thump? I don't understand? Did it attack you..? weird.....

Dorothy 04-19-2007 08:03 PM

Humans' Touch on the Universe!
 
Quote:

Originally Posted by terrestrial_man (Post 22995)
If we survive long enough it will all be managed anyway. Nature will be whatever we plant or allow to exist. The notion of wilderness will be a memory gone as it would be for someone who thinking that they have found that perfect far away place that no one could have found before runs across an empty beer can! Definitely not litter from heaven!

:( :(( Haven't we even left our Earth junk :Tdown: on Mars thanks to NASA? :_(

Frdemetr 04-19-2007 10:11 PM

Catasetum 'thump'
 
The name "Catasetum" is formed from "cata", from latin "to hurl", like in 'catapult', and "setum", from latin "arrow"; so, the male flowers of catasetum (a catasetum plant can blooms male, female or both flowers, seldom hermaphodite ones) has a mechanism designed to hurls the polen in the back of polinating insect; the polen has a kind of glue and is fixed in the insect, than it goes to a female flower and the fecundation (sometimes) occurs. For this reason Catasetum-alliance are considered the most well evolved orchids.
If you put your finger closer enough a mature male catasetum flower, you will feel a thump, and the polen mechanims will be glue in the finger!

dave b 04-19-2007 10:20 PM

Quote:

Originally Posted by Exhaustive (Post 29005)
Why did you feel a thump? I don't understand? Did it attack you..? weird.....

The anther is held in place under tension, and when touched they release and smack into the male euglosine bee, or the persons finger. Which ever one happened to be probing around inside the flower.

To see a really amazing orchid pollination scheme, look up the hammer orchids (Drakaea) from Australia. banjorah.com is an interesting site for good pics of Australian orchids and flowers.

wjbrown 04-19-2007 10:29 PM

I don't know what releases the anther. I'm pretty sure I didn't actually touch the blossom.

Dorothy 04-19-2007 11:08 PM

OH MY!
 
I have come to the conclusion that orchids are all about sex :drool:
.. no wonder I have an affinity to them! :blushing:

:coverlaugh:




Not Looking


Yeah Right

Exhaustive 04-20-2007 09:37 AM

Well wow, I have definately learned something new today.......Thanks!


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