[OGD] Icones Orchidacearum Peruviarum
Hello all, I'm looking for the 4 volumes (800 plates) of Icones Orchidacearum Peruviarum. Does anybody have a contact e-mail address for David Bennett in Peru or does anybody know where I can still buy this set ? Has this series stopped after the publication of volume 4 or is it still ongoing ? Kind regards, Kenneth. PS: I tried to contact Eric Christenson but maybe my mails never reached him or he switched e-mail address. Kenneth Bruyninckx Akerne Orchids Laarsebeekdreef 4, B-2900 Schoten, Belgium tel. +32 (0)3 651 40 36fax +32 (0)3 653 06 76 [EMAIL PROTECTED] www.akerne-orchids.com http://www.akerne-orchids.com/ ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
Re: [OGD] Glasshouse equipment
Does anyone have experience of Tomtech glasshouse controllers? Please contact me offline, as this is unlikely to be of group interest. Thanks. __ Oliver Sparrow +44 (0)1628 823187 www.chforum.org ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
Re: [OGD] Article request
Thanks to those who forwarded the Stanhopea article - much appreciated. John Varigos Melbourne, Australia ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
[OGD] modine heaters on the floor
I have two 75,000 btu Modine greenhouse heaters and I never have any sepal burn even though there are plants within 15 of the heater. Mine are hung in welded steel cradles that sit on patio stones. Anyone that wants a photo of the cradles should contact me off line. The further specs for spacing of the hanging bolts are in the manual for the heaters. You should not get any damage from combustion gases because they have a power vent. The only thing I would suggest is to not put the vents at chest height as the installers like to do, but make them put a couple of elbows in and then put the vents ¾ up the side of the greenhouse---two reasons: first that way you recover some of the heat lost out the vent as it warms the length of the vent, and secondly if you live somewhere where you get heavy snows or drifting, the last thing you want is the outlet to become plugged by blowing snow or driftsand yes it can happen. And never ever install the heater on the side wall where snow sliding off the roof can build up. . .It isnt fun to have to get up all night to shovel the vent out, which I had to do with my first greenhouse where I had a Hunter, similar to Empire, direct vent heater. These also rust out fairly quickly and I had to replace the supplied thermostat with a heavy duty one as the supplied one corroded within a year in the greenhouse. I also have a friend that installed a boiler system designed for homesthey had constant problems until they moved it out of the greenhouse and into an attached shed because of the humidity in the greenhouse. Bottom line is: buy something designed for greenhouses and high humidity. You can buy the Modines with stainless steel or aluminum insidesthe stainless has twice the guarantee. Windsor Greenhouse RR 2, 345 Gabriel Rd, Falmouth, NS B0P 1L0 866-798-0514; FAX 902-798-1131 [EMAIL PROTECTED] www.windsorgreenhouse.com ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
[OGD] fooling the wasp (Australia)
a... native orchid trying to outwit a randy male wasp... Anne Gaskett, a PhD student from Macquarie University in Sydney... uses advanced colour technology... to understand how five species of native tongue orchids trick a male wasp into believing he has found a sexual partner. She says the findings will help to develop environmentally sensitive pest controls and conserve orchid species. Ms Gaskett looked at the orchid dupe wasp (Lissopimpla excelsa). And she says as far as the male is concerned, tongue orchids have curves in all the right places. But the wasp is fooled for only so long. Her research found that even after just a few exposures to the orchid the wasp avoids trying to have sex with it. Ms Gaskett from the Department of Biological Sciences says the orchid must then enhance its mimicry of the female wasp to continue to attract the male wasp and pollinate. This means only the most persuasive orchids will continue to reproduce, she says. ... Orchids are the only plant whose flowers trick insects using such sexual deception. The aim is to convince the insect to 'mate' with them. The insect accidentally collects pollen on its body, which is then transported to another flower. Ms Gaskett says the orchid dupe wasp is attracted to and pollinates five species of tongue orchid in the genus Cryptostylis. This is unusual as normally one insect pollinates one species of orchid. She says this means the five orchid species, which look completely different to the human eye, must look and feel the same to the male wasp. ... Ms Gaskett used a spectrometer to analyse the colours of four of the five species and a female wasp. Taking into account factors including the background colour, ambient light and colour range of the male wasp's receptors, she found the orchid replicates almost exactly the colours of the female orchid dupe wasp. She has also found 'hidden shapes' that feel like a female wasp to the male, including 'love handles' the male wasp grip onto while mating. ... Ms Gaskett... is now studying the perfume of the orchids and testing them on wasp antennae to look at the role of smell in the seduction process. URL : http://abc.net.au/news/stories/2007/08/21/2010644.htm?section=australia *** Regards, VB ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
[OGD] Dendrobium lamyiae or lanyiae
Hi Jay. The orthographic correction you are seeking was given in Nord.J.Bot. 22, 6: 527 (2002). The incorrectly-spelled name Dendrobium lanyaiae was corrected to Dendrobium lamyaiae Seidenfaden. Cheers, Peter ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
[OGD] save your lungs ! / grow orchids !
plants can absorb... toxins and pollutants as they perform their daily functions, enabling them to act as efficient air and water filters. ... The... home is prone to... insidious toxins, such as formaldehyde (from carpets, plywood, flatpack furniture and insulation materials); benzene (from particleboard and some paints); propanol (cleaning products); and dichloromethane (paint thinners and strippers), whose effects can range from mild eye, nose and throat irritations to more serious conditions. ... Orchids have the... advantage of being one of the few plants that produce oxygen at night URL : http://www.telegraph.co.uk/gardening/main.jhtml?xml=/gardening/2007/08/21/garden-eco-plant121.xml *** Regards, VB ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
[OGD] Calochilus pulchellus
Still trying with this species. I have managed to speak with the developers and have come to an arrangement regarding the future of C. pulchellus. Despite the two populations being marked for destruction in the first stage of the residential development, the company has agreed to wait until the end of this month before bulldozers are allowed to clear the orchid sites. An on-site meeting with the Project Manager and Civil Engineer was productive in that they have agreed to wait until personnel from the Department of Environment, Conservation and Climate Change can effect a translocation of the offending plants. The meeting also discovered the four original plants were intact and the single plant in a sawn-off tree stump has produced nine seedlings including a new plant in the stump. Plants in the ground will be dug up by garden shovel, placed into containers and relocated to a suitable site in the Environmental Protection Zone in the hope they will survive. The stump will be removed by the developers using their machinery and also relocated. As the species is heavily mycorrhiza dependent, this is at best a 50-50 chance but as the species will not be granted legal status as a Vulnerable Species until later this year, it appears the only chance available. I am not a proponent of translocation but at the moment it's the only game in town, as consent for the development was granted prior to the formal recognition of C. pulchellus as a new species. I also will partake in this operation and a series of photos will be taken of the in the hope we can learn something but it is a tragedy we are interfering with a growing population. Alan W Stephenson National Conservation Officer Australasian Native Orchid Society (ANOS) ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
[OGD] Modine - oversized
Joy, I had the same problem. Too much heater blowing directly on hanging plants and frying them. Suggested solution: Take a sheet of Bi-Wall and make a wind break. I like bi-wall because it is rigid and requires no maintenance (unlike wood). The way I did it was to slit one layer of the bi-wall about 5 inches in on each side. Reverse' bend down 90 degrees and hold in place with angle irons at top and bottom. Place it with the 'box' side facing the heater on a support about 6 feet from output of the Modine in a way so that it is sloping (about 15-20 degrees or so) with the bottom further from the furnace than the top. In my case the support was an 8 foot 'potting' (really a junk) bench I have at that end of the greenhouse. The bench is able to easily allow the air thru because it is topped with galvanized wire screening. Under the bench I have a floor fan that pushes the air to the far end of the greenhouse. (Sorry to be so longwinded but I don't think I can put a drawing into the ODG.) Now comes the part that makes the whole thing worth while. On the side away from the furnace make a growing area for plants on cork. Or as I did in my case - make a 'box' out of the galvanized wire and fill it with some mix of growing media that does not break down easily (if at all), is light weight (unless you have a couple of 6'3 sons who can lift it is place) and holds as much moisture as your greenhouse requires. If you are in a really dry area then a drip system at the top adds much humidity. I have mounted many small orchids directly on the box. To help with the moisture and make it look nicer I have draped the thing with Spanish Moss. Of course you can't remove them when they come into blossom but for the ones I want to bring in the house that is what the cork mounts are for. Any questions please contact me direct. Jerry in IN ___ the OrchidGuide Digest (OGD) orchids@orchidguide.com http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
