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Topic: Disa (orchid)


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In the News (Thu 17 Dec 09)

  
  Welcome to RSAFLOWERS.COM - Proteas
These Orchids are called terrestrial plants, which in orchid lingo means they have and underground tubers furnished with roots, form which a rosette of leaves and the flowers are formed.
Disas must be given bright light, which is indispensable to the formation of sturdy plants and brilliantly colored flowers.
Disas can be potted yearly in the spring in a well-drained soil which always retains moisture and is acidic in nature.
www.rsaflowers.com /DisaOrchid.asp   (284 words)

  
 Orchids in southern Africa: Reproduction
Southern African orchids are mainly pollinated by insects (bees, moths, flies, butterflies), and rarely by birds.
The complicated architecture of the orchid flower is highly adapted to the pollinators which are one of the major driving forces of evolution.
Disa uniflora, D. cardinalis, D. tripetaloides and D. caulescens have slightly larger seeds of about 1 mm length, and these are dispersed by the streams next to which the plants grow ('hydrochory').
www.plantzafrica.com /plantnop/orchids/reproduction.htm   (1231 words)

  
 Village Life
According to serious Disa observer and secretary of the Disa Orchid Society of S A, Bes Gous, “words fail to describe the feeling when standing at the bottom of a waterfall, with the curtain-like fine spray of water and red Disas all over.
He named them Disas (pronounced “deezas” in the Swedish way) after a mythical Swedish maid, Uppsala, who was presented to the King wrapped in a fishing net, which may be a reference to the net-like (reticulated) markings on the hood of Disa uniflora flowers.
Disa uniflora is among the hardiest of the genus and is found from sea level, “where the waves lap against the cliffs at Gordons Bay”, says Nico Myburgh, up to 1 200m and survives a few degrees of frost.
villagelife.co.za /10_disas.html   (758 words)

  
 Disa (orchid) - Wikipedia, the free encyclopedia
The orchid genus Disa consists of 169 terrestrial species in tropical and South Africa, Madagascar and along the Western Indian Ocean.
They were named after Disa, the heroine of a Swedish legend, by the botanist Carl Peter Thunberg.
The orchids have usually a single species as pollinator.
en.wikipedia.org /wiki/Disa_(orchid)   (374 words)

  
 Louis Vogelpoel
Disa uniflora is confined in nature to the sides of streams and waterfalls in the mounĀ­tains of the South Western Cape.
Although Disa uniflora flowers from December to March, often in extreme heat and is able to tolerate many hours of full sun, the plants always grow in a cool, well drained sub-stratum with a root system that is constantly kept wet.
Disa uniflora is unique amongst the commonly grown orchids in that germination in sterile flasks on nutrient agar is unnecessary; germination is excellent when sown on a damp surface of boiled sphagnum moss or imported peat moss.
www.disas.com /louis_vogelpoel.htm   (5237 words)

  
 Introduction to the genus DISA   (Site not responding. Last check: 2007-10-12)
Disa uniflora, the "Pride of Table Mountain," is perhaps the best-known of the genus.
Disas are very popular in RSA, Europe, NZ, and Australia, and there is now an active group of growers in the US growing several thousand different clones.
The Webmaster for The Disa List, Dennis Moser, and his wife Jan Moser have recently moved to Houston and are new members of the Houston Orchid Society.
www.houstonorchidsociety.org /HOS/Disa_intro.html   (266 words)

  
 Disa cardinalis
Disa cardinalis is only found on the dry, northern slopes of the Langeberg Mountains from about Barrydale to the gorge of the Gouritz River.
Disa is a large genus of African terrestrial orchids and was described by the Swedish botanist P.J. Bergius in 1767.
All orchids are strictly protected by law in South Africa, and it is therefore highly illegal to remove any plants from the wild.
www.plantzafrica.com /plantcd/disacard.htm   (1229 words)

  
 Easy Orchids - Disa
Disa orchids are native of South Africa and despite the hot climate of their home they are actually cool growing orchids, if not alpine as they hail from high altitude areas on mountain tops and grassy mountain slopes.
The Disas in the uniflora group and their hybrids are typically evergreen and are tuber based plants which produce flowers borne on 15 - 20 inch tall stems carrying between 3 and 7 flowers up to 3 inches across.
Feed Disa orchids with general purpose fertilizer at quarter strength from March till September at which time you should begin feeding with a higher potash feed at quarter strength to help harden the leaves and stems ready for the cooler winter.
www.easyorchids.co.uk /site/content/view/19/42   (960 words)

  
 Canadian Orchid Congress Newsletter 9:2
Disas produce an annual rosette of leaves which, if the plant is large enough, will give rise to an inflorescence.
Disas can be afflicted by whatever pests are present in your collection but they are not overly susceptible to infestation.
Disas may be grown in New Zealand Sphagnum Moss or in hydroponic gravel.
www.canadianorchidcongress.ca /news/cocv092.html   (4094 words)

  
 Disa orchid - Pride of Table Mountain - at Merkles Orchids
Disa uniflora pollinia are some of the largest in the orchid family, often 1 inch long.
Disa roots are very sensitive to minerals dissolved in their water, and you cannot get away with "guessing" for very long.
Disas should be fertilized only while actively growing, which may occur as early as mid-winter, and continue until mid-summer.
merklesorchids.com /disa.html   (2099 words)

  
 Disa Pollination Strategies
The Swedish botanist Bergius erected the genus Disa in 1739 [1] using the holotype of Disa uniflora.
In the Disa draconis complex it has been shown [7] that the spur length varies in size between populations of the same species according to the length of the proboscis of that fly that pollinates that particular population.
In the Stellenbosch department of Biochemistry, a study is underway to classify the disas in accordance to variations in the DNA sequence of the trnL interon in the chloroplast genome [12], using a method devised by Fangan et al [13], using PCR.
tgenade.freeshell.org /myorchids/disapol.htm   (1739 words)

  
 North Jersey Orchid Society
He was very apologetic in informing me that he didn't have any plants to sell me at that time, and to call him back later in the fall, after he repotted the plants.
Disa Diores flowered and was displayed in the 1995 NJOS show.That plant too, eventually died.
Water (rain water combined with fertilizer to produce a reading of 50 on the conductivity meter) is cycled for two hours during the mid day and for four hours after the light goes out at night.
www.njorchids.org /articles/Disa/disa.htm   (809 words)

  
 Disas - Fenland   (Site not responding. Last check: 2007-10-12)
As most of the Disa orchids he saw while in Africa grew in gullies, they had, as he said, their feet in water and their heads up to the light.
to search for Disas and as he says water is always running, cloud moisture is the main source after the rains, and vegetation generally is all the way up the mountain, so it is not surprising that he only found one.
Disas grow from tubers, so when the leaves die back do not dispose of the plant thinking it is dead.
www.orchid-society-gb.org.uk /disas_fenland.htm   (784 words)

  
 Royal Horticultural Society - Publications: The Garden
Disas have been dismissed as ‘too difficult’ by most orchid fanciers, but Dave thinks this is unfair: disas are not difficult, merely particular about their growing conditions.
The species of disa commonly in cultivation and their hybrids are evergreen and restricted in the wild to the southern tip of South Africa, the Cape area.
Water is critical, as disas abhor calcium, and soon signal their dislike for it in yellowing foliage and poor growth.
www.rhs.org.uk /publications/pubs/garden0103/disa.asp   (1080 words)

  
 Gore Orchid Conservatory - Disa Catalog
Like most of the Disa hybrids, these are extremely variable, depending on the uniflora that were chosen for breeding.
is a genus of Orchids from South Africa.
Disas do require special growing considerations, like all orchids, but are not especially difficult to grow if they have good water and cool to intermediate temperatures.
www.goreorchidconservatory.com /CatalogAndInfo/Disa.html   (377 words)

  
 Disa Orchid Flow Table
is a genus of orchids native to Africa, and the Disas most often cultivated are those which come from the country of South Africa and occur along mountain streamsides, waterfalls, and seeps.
The Disas are only brought indoors when outside temperatures are freezing, but they spent many nights outside when it was 35F, and even had some snow on them one day.
This is a hybrid Disa Kewensis (uniflora x tripetaloides) which is in spike in a four-inch pot.
www.merklesorchids.com /Orchidpages/disa.html   (1864 words)

  
 Orchid Societies Council of Victoria Inc
In South Africa, disas are grown commercially using coarse silica sand as the potting medium.
Under these conditions, both disas and moss grow well, and it is necessary to harvest the moss occasionally to prevent it from smothering the plants.
The greatest cause of disa mortality is fungal or bacterial rot, which usually attacks either the crown or the base of the plant.
www.oscov.asn.au /articles/disaunif.htm   (1169 words)

  
 myorchids/Disa
Only Disa unifora and it´s hybrids within the section Disa are fairly distributed in culture.
Disa crassicornis grows in the Drakensberg escarpment of South-Africa between 1000 and 2700m.
Disa sagittalis occurs in South-Africa in the summer- as well as in the winter rainfall region (Karsten Wodrich, Gordon`s Bay, South-Africa, personal comunication).
www.myorchids.de /disa1.htm   (550 words)

  
 Disa uniflora ( Disa Orchid )
There really is no need to add crockery to the bottom of the pot, but you may want to add a small square of wire mesh or other permiable fabric over hole in bottom of pot.
Potting Epiphytic Orchids Epiphytes prefer conditions where roots can be exposed, therefore, tight pots and close-contact soil mixes do not work well and will induce rot.
As with the terrestrial orchid, select a pot that will accommodate roots and about 2 years growth, but no more.
www.backyardgardener.com /plantname/pda_9a35.html   (2414 words)

  
 disa - Definition, Synonyms, and Reference from OnPedia.com
orchid, orchidaceous plant - any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors
genus Disa - genus of showy tropical African terrestrial orchids
DISA - a combat support agency in the Department of Defense responsible for developing and operating and supporting information systems to serve the needs of the President and the Secretary of Defense and the Joint Chiefs of Staff
www.onpedia.com /dictionary/DISA   (160 words)

  
 DPIW - South African Orchid - Weed   (Site not responding. Last check: 2007-10-12)
is a terrestrial orchid native to the Cape region of South Africa.
It was recently discovered in Tasmania, and is the first example of an exotic orchid taking up residence in the State.
It is not new to Australia, it occurs as a weed in Western Australia, South Australia and Victoria.
www.dpiw.tas.gov.au /inter.nsf/WebPages/LJEM-6PG7QA?open   (487 words)

  
 Welcome to Trinity Orchids   (Site not responding. Last check: 2007-10-12)
Trinity orchids was formed in 2001 with the purchase of 3,000 baby disa orchids from a commercial grower and exporter.
Disa Orchids originated from the table mountains of South Africa and were introduced into New Zealand in the 1800s with a resurgence in the 60s and 70s.
Trinity Orchids supplies a number of florists throughout New Zealand and is always keen to discuss business with potential clients.
www.trinityorchids.com   (386 words)

  
 Orchids of The World - Disa
Disas - pronounced "deezas" in the Swedish way, are presumed to have been named for the mythical Swedish goddess of Uppsala.
Disa Orchids have been known and appreciated for years.
Orchids of Southern Africa; H. Linder and H. Kurzweil; A.A.Balkema; hardcover; 1999; 492 pages; 500 color plates; 82 line drawings; 458 maps.
www.orchids.mu /Species/Disa   (510 words)

  
 Phylogenetic relationships in Disa based on non-coding trnL-trnF chloroplast sequences: evidence of numerous repeat ...
Disa could be attributed to three regions (indicated as A, B, and C) containing different repeat motifs.
Bateman R. 2001 Evolution and classification of European orchids: insights from molecular and morphological characters.
Linder H. Kurzweil 1999 Orchids of Southern Africa.
www.amjbot.org /cgi/content/full/88/11/2088   (4447 words)

  
 TagTooga : gardening / orchid   (Site not responding. Last check: 2007-10-12)
Orchid Shows Events Care are Organized for educational purposes and show people the beauty, variety, care & complexity of orchids by shows, meetings, plant sales and speakers.
Orchid Growers/Hobbyists, literally a matter of life or death for your orchids, that you find a way to hear Dr. Arthur Allison’s upcoming talk about Orchid Viruses, and their detection.
Australasian Native Orchid Society is dedicated to the cultivation, conservation and scientific study of native orchids in the Australasian region.
www.tagtooga.com /gardening/orchid   (1255 words)

  
 Orchid Has "Active" Sex With Itself -- A Flower First?
Biologists observed the elaborate style of reproduction in the bisexual orchid Holcoglossum amesianum, a tree-dwelling plant found in the dry forests of China's southern Yunnan Province (map of China).
Most orchids reproduce in this way, and many are known for their elaborate floral structures (photo: South African Disa uniflora orchid) designed to attract specialized insect pollinators.
While less common in orchids, many flowering plants are known to self-fertilize either some or all of the time.
news.nationalgeographic.com /news/2006/06/060621-orchid-sex.html   (407 words)

  
 Amazon.com: "Queen Disa": Key Phrase page   (Site not responding. Last check: 2007-10-12)
DISA Bergius DYE-sa Tribe: Diseae Subtribe: Disinae Etymology: Queen Disa,...
The name honors Queen Disa of Swedish mythology, who, when ordered to appear at a state banquet unclothed but not nude, showed up dressed in...
Actually it was idealized and stylized only in regard to the older woman; in regard to Queen Disa, as she was that afternoon on that blue terrace, it represented a plain unretouched likeness.
www.amazon.com /phrase/Queen-Disa   (508 words)

  
 Open Directory - Home: Gardening: Plants: Orchids   (Site not responding. Last check: 2007-10-12)
Orchid Mania - An international group of orchid lovers who raise money for grassroots AIDS organizations, foster orchid education and appreciation, and save endangered orchid species.
Orchid Pictures Query - Database presented by the London Orchid Society, with references to thousands of orchid photos and drawings in hundreds of books, magazines, and catalogs.
Orchid Species Culture - Pollination/germination database for producing orchid seeds, orchid culture files, and information about a service that provides culture sheets on a subscription basis.
dmoz.org /Home/Gardening/Plants/Orchids   (1159 words)

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