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POS July 2016 Newsletter Pietermaritzburg Orchid Society July 2016 NATIONAL SHOW in NEXT MEETING IN PIETERMARITZBURG will be at September is on track (9-11 the Allan Wilson Shellhole at 7pm on Wednesday 10th August. September), we have a full This is just one month and our last meeting before our house of vendors, from National Show, so please make sure you are there to hear all Ecuador, Taiwan, Thailand, as the latest news and please volunteer to help at the show. well as around the country. So start saving your money now, Our guest speaker for the evening is Dave Brennan who will be there will be SO MANY plants talking about growing orchids organically. Dave has relocated to Hillcrest and is Queensburgh Club’s gain and our loss. We for sale, and there are sure to miss his plants at our meeting s and look forward to hearing all be some you can’t live without!!! his news. Registration for the two day NEXT MEETING IN HOWICK will be held at Howick Conference which takes place Methodist Church Hall, Main Street at 3pm on Wednesday at the Ascot Conference Centre 10th August. is R1,200 (early bird registration has been extended) and this OPEN DAY will at Dunrobin Nursery, 31 Warwick Rd (off includes 10 excellent orchid Townbush Rd) , Chase Valley on Saturday 13th August from presentations, lunch and teas 9am to 4pm. This will be our last fundraiser before the National on the two days, as well as the Show. So please bring along any plants you have for display, opening Cocktail Party, closing and there will also be plants for sale. More details at next Buffet Dinner, unlimited access weeks meeting. to the Show, and a registration ‘Goody Bag’. ORCHIDS THROUGH HISTORY Orchidelirium is the name given to the Victorian era of Eleven Societies around the flower madness or obsession when collecting and country are involved in building discovering orchids reached extraordinarily high levels. displays at the Show being held Wealthy orchid fanatics or Orchidophiles of the 19th century at the Drill Hall, as well as 3 sent explorers and collectors to commercial displays. Please let almost every part of the world in all your friends, in fact anyone search of new varieties of even if they are not your friends orchids. Orchidelirium is seen as know about the Show. similar to Dutch tulip mania. Today there still exists some levels of orchid madness, that has some times Remember to register on the resulted in theft of exceptional blog to get all the show updates: orchids among collectors, such as Dont be alarmed Madam the Ghost Orchid. Today, https://pmborchidsociety.wordpr — I am an Orchidophile!! Orchidelirium is totally unsustaina- ess.com/saoc-national-orchid- ble. Indeed, many orchid species are endangered, if not show-2016/ nearing outright extinction. Orchidophile is the term given to an orchid lover or enthusiast. Photo above: Laelia anceps var. lineata (Mal Renwick, June Open Day) 1 July 2016 Pietermaritzburg Orchid Society NATIONAL SHOW DETAILS 9-11 September 2016 The SAOC National Orchid Show is held every four years and is hosted by different Societies around South Africa. In September 2016 it is the turn of the Pietermaritzburg Orchid Society to host this prestigious event. The National Show is the biggest display of orchids in the country and many of the Societies from around the country do displays out of all the orchids sent by their members. National Orchid Show 2016 Speakers and Subject Titles (not necessarily in this order) Friday 1. Jose Portilla – “Ecuadorian Orchids in the 3 main Regions”. 2. Lourens Grobler – Cattleya species, then and now. 3. Peter Greenfield – ‘The myths and mysteries of orchid nutrition’. 4. Nollie Cilliers – Cymbidiums – where we are and an exciting future! 5. Gavin MacDonald – Current trends and recent awards in Paphiopedilum Saturday 1. Timo van dier Niet – The insatiable intrigue 150 years on: Recent advances in pollination ecology of orchids 2. Tinus Oberholzer – Angraecum stella africa: truly the star of Africa 3. Mike O’Connor – Dendrobiums 4. Heino Papenfos – Smoke-water stimulates Ansellia Africana orchid seed germination 5. Hennie Steyn – Growing Vandaceous Orchids Vendors There will be a number of vendors selling orchids at the National Orchid Show this year and some are coming from as far as Ecuador and Taiwan. Others are coming from the Western Cape, Mpumalanga and Gauteng. Please visit their websites to view the plants they sell, should you wish to place orders and they can bring them to Pietermaritzburg for you. Ecuagenera – www.ecuagenera.com Ten Shin Gardens – www.tenshinorchids.com Plantae – www.plantae.co.za Afriorchids – www.afriorchids.co.za ORCHID SHOWS IN AUGUST & SEPTEMBER 1-4 September - GOS Spring Show, Gonubie Hotel, Gonubie 2-4 September - ZOS Spring Show, Boardwalk Inkwazi Shopping Centre, Richards Bay 2-4 September - Rustenburg Orchid Society Spring Show, Waterfall Garden Centre, Rustenburg 3 September - ACOS Day Display, Hibiscus Shopping Mall, Margate 3-4 September - EROS Summer Show, The Garden Shop at Flora Farm, Boksburg 9-11 September - Orchids 2016, National Conference and Show, Drill Hall, Pietermaritzburg – build up etc from Tuesday 17-18 Sep – NOS Spring Show, Parkhill Bowling Club, Umhlanga Rocks Drive, Durban North 2 July 2016 Pietermaritzburg Orchid Society JULY MEETING - PLANT TABLES PIETERMARITZBURG At our last meeting, owing to a clash of venue, there really wasn’t room for everyone to vote on the plant table although it was nice and cosy, so we just had the usual plant table discussion and Judges choice in each category. JUDGES CHOICE Best African Species & Best Best Exotic Species Best Hybrid Overall Rhynchostylis gigantea Cym. Cali Night ’Geyserland’ Mystacidium pusillum Owner: Natalie Blackmore Owner: Natalie Blackmore Owner: Donald Ross JULY MEETING - TALK At our last meeting Brian Tarr coped admirably with a very small space, and gave us an insight on how he grows his plants on trees, and on mounts in his garden. Thank you Brian for such an interesting talk. Notes from talk “Mounting Orchids” By Brian Tarr Brian’s preference is to grow all orchids on trees outside because it is more natural. He doesn’t feed or water his plants and successfully grows and flowers them. He experiments with different bases and tries to make each look interesting and artistic. He brought some lovely mounts along to show the meeting. He has found that the 2 best species of tree for mounting orchids are: Magnolia which is by far the best for mounting orchids Bottlebrush There is something in the bark of these two trees that seems to stimulate orchid growth. In addition, after cutting a piece of the wood, the bark stays on and doesn’t easily peel off making it better for the orchid to establish. 3 July 2016 Pietermaritzburg Orchid Society JULY MEETING - TALK cont’d Combretum imberbe - is another good wood for mounting orchids. It comes from the Lowveld and Northern Natal. The wood is heavy and doesn’t rot making it ideal for orchid support. The paperbark or Melaleuca Treefern stump. Brian recommends that you use only the bottom two thirds of the stump which is much harder and doesn’t rot as easily as the top section. Pot plant “moss sticks” work well for Laelia growth Brian has also used old CCA treated slats (more than 4 years old). There was some discussion about how the chemicals (one being arsenic) in the wood affects the orchid growth. When mounting a plant, Brian choses a section with 7-8 pseudobulbs and pulls off the lower ones. He then attaches he plant using fencing staples, strips of pantyhose or rings of gemsquash bags. THE NAMING OF ORCHID PLANTS – Part 1: Orchid species growing in their natural environment. By Peter Greenfield At the plant table last month, during judging, our Emeritus judge, Ann Duckworth urged members to try and label plants correctly, so, rather hesitantly (as I am not a taxonomist) I will try to explain the system of naming plants. The whole system of botanical taxonomy is quite complex in its entirety, but I will attempt to pull out the essence of import to you as orchid society growers. The naming of any living organism is an attempt to show the interrelatedness of organisms, and hence put them into divisions, starting somewhere near the beginning of life formation and then branching out, with each division becoming more specific. Think of it as a (very large) tree of life starting at the trunk and then splitting into various levels of branches eventually ending up with the uppermost twigs and leaves, which are the species. I am not going to dwell on the early divisions, but suffice to say that orchids lie within the plant kingdom and then, as orchids produce fully protected seeds, lie within the angiosperm division of plants as opposed to those with covered seeds in cones (conifers) or spores such as in algae and mosses. The next branch or class is where the angiosperms either have two cotyledons in the seeds (dicolyledons), which also have floral segments in fours or fives; or a single cotyledon as do our orchids, which puts them into the monocotyledons, which members have floral segments in multiples of three. Classes then subdivide into orders which are largely of academic interest, and orders are then divided into families, which is where we prick up our ears, as orchids belong to the family Orchidaceae. Other families which we will be familiar with are the Daisy, Grass, Legume, Rose, Amarylis etc. families (respectively, the Compositae, Fabaceae, Poaceae, Rosales, Amarylidaceae) families. The Orchidaceae are the largest plant family with about 20 000 species lying within it.
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