April
2015
Foundation Date January 1976 .
Thelymitra ixioides
Spotted Sun Orchid
Postal Address PO Box 411 WOODRIDGE 4114 Queensland Australia Patrons: Logan City Mayor Pam Parker Plant Name : Thrixspermum platystachys and Graham Oldham Exhibitor : John Roberts President Laurie Baxter Ph 0417 614 838 Vice President Trevor Cook Ph 3345 4049 Housing: Bush house:-70%shade, grows over a bath filled with Secretary Jan McKenzie Ph 3208 8721 water for very high humidity , air movement essential, cannot tolerate
Treasurer Doug Mogg Ph 3806 5316 frosts.
¡ ¢ £ ¤ ¤ £ ¥ ¦ § ¨ ¤ © ¥ £ ¢ ¢ ¨ © ¥ ¤ Ph 3800 3213 [email protected] Feeding : Fertigator feeding of what is going on the day. Normally weekly in warmer months, monthly in winter. Committee Members
Adrian Bergstrum Ph 3805 8224 Watering : Tank water once a week on winter mornings, twice or [email protected] three times a week in the peak of hot weather in the late afternoon. Myrella Coppus Ph 3341 5691 Maree Illingworth Ph 3800 3213 Potting Medium: plant is mounted on cork. Trevor Law Ph 3489 3340 Phillip McCallum Ph 3427 7774 Any other Cultural Notes: This Australian species grows from the Pam Price Ph 3345 6143 Johnson River region South West of Innisfail to the Range half way up Kurt Raup Web Master Ph 3388 8771 Cape York. Val. Marsden Ph 0437 556 608 Thrixspermums occur throughout North Australia into Asia and the Pacific Islands. The flowers only last a day, but they flower several times from late Spring through to Autumn. Web Address: www.lados.org.au From Orchidwiz ORIGIN/HABITAT: A miniature to small sized, hot growing lowland monopodial epiphyte from Queensland Australia to Papua and New Guinea in lowland forests at elevations of 10 to 460 meters. -- Source: Jay Pfahl's IOSPE at www.orchidspecies.com
Next Monthly Meeting: Judges for the April 17th, 2015 Meeting Tuesday 21st April 2015 Commencing at 7.30pm John Roberts, Adrian Bergstrum, Lynda Rapkins and Les Burrow. Logan Central Community Centre Cnr Jacaranda Ave & Wembley Road Logan Central. Next Committee Meeting: Work Roster for April 2015 Tuesday 5th May 2015 Hall Set-up at 6.30pm Commencing at 7.30pm Those that can come early. Logan Central Community Centre Supper : Val Marsden and Cnr Jacaranda Ave & Wembley Road Logan Central.
Editorial
This months Newsletter has most of the usual information. Page 2 has the shows to come, potting supplies and a request from Adrian, the guest speaker for the April meeting is not known at this stage. Page 3 has the Minutes from the March meeting and the Committee Notes for April 7th 2015. Page 4 has the Judges Choice for March with Page 5 having the
photos of the winning plants. Page 6 has info on the next Cultural Meeting which will be on Orchid diseases and some notes
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newsletter had already been printed. Page 9 has Part 1 of a 2 Part article from the American Orchid Society Magazine
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¨ § ¡ ! © ¤ © ¥ ¨ § ¥ © © ¤ ¥ . Pam has been working on our bus trip which is planed for later in the year, it will be a trip to the Toowoomba Orchid Conference in July, we will keep you informed about this, see her note on the bottom of Page 3. Happy growing and check your plants regularly, watering can be reduced now as the weather cools down, most plants would only need watering approximately every 3 days , as the nights get colder water in the mornings so the plants are damp but not wet by nightfall. Reg
COMMITTEE NOTES April, 7th, 2015
The committee discussed arrangements for the upcoming table-top display at the Brisbane Orchid Society Show at Mt Gravatt State School on 18 th and 19th April. Set-up is at 4pm on Friday 17th April. Please contribute flowering plants for
the display. Pick-up again on Sunday afternoon.
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¨ ¢ ¢ ¨ ¥ © ¤ £ ¥ © ¥ ¦ $ © ¤ £ ¥ ¡ % § ¨ & ¢ § ¢ £ ¤ ¤ £ £ ' ¤ £ £ ¥ ¢ £ £ ¤ ¨ ( ¢ £ £ ! ¥ ¨ ¨ ¢ © £ ¥ ¨ plants for sale as possible. Remember the display. Jan McKenzie
POTTING SUPPLIES ORCHIATA Bark is available FROM Ken Martin, Phone 3341 5474. 9 Dianna Street UNDERWOOD. It is available in 4 sizes, Small 6-9mm, Medium 9-12mm, Large 12-18mm and Extra Large 18-25mm. The price to LADOS members is $25.00 per 40L bag Coconut Chips are available in 2 sizes, small and large from Ken @ $11.00 per block. Ken has also taken delivery of Perlite which is now available from him. Adrian has sourced Charcoal in 10L bags @ $10 a bag and is available from Ken. When buying a quantity of any product Adrian has requested that you ring him so a suitable supply of stock can be brought to the hall as it makes it possible for other members to purchase product. You can call him Adrian Bergstrum ' 3805 8224 or Email [email protected]. It is probably best to call before lunch as Adrian works an afternoon shift at WW bulk store.
GUEST SPEAKER FOR THE APRIL MEETING
The guest speaker on 21st April is to be a surprise.
SHOWS TO COME
16/18 April City of Lismore O. S., Lismore City Library 17/19 April Townsville O. S., Charles St Kirwan. 18/19/April Rockhampton O. S., High School Hall, Campbell St. 18/19 April Ipswich O. S., Silkstone State Primary School Hall. 18/19 April Brisbane O. S., Mt Gravatt State School. 30 April/2 May Caboolture O. S., Morayfield Community Centre. 30 April/2 May Mackay & Dist. O. S., Mt Pleasant Shopping Centre. 30 April/2 May Pine Rivers O. S., Aspley Hypermarket, Aspley. 1/2 May Maclean Dist. O. S., Maclean Bowls Club. 1/3 May Gympie & Dist. O. S., The Pavilion, Gympie Showgrounds. 2 May Redlands O. S., Donald Simpson Centre. 6/8 May Redcliffe Dist. O. S., Redcliffe Library. 7/9 May Gold Coast Dist. O. S., Pines Shopping Centre. 8/9 May Innisfail O. S., venue to be advised 8/9 May Lockyer Valley O. S., Gatton Shire Hall. 8/10 May Bundaberg O. S., Bundaberg Civic Centre. 9 May Pumicestone Dist. O. S., Ningi Hall. 9 May Toowoomba O. S., St Pauls Lutheran Church Hall. 9/10 May Aspley O. S., Com. Hall Edinburgh Castle Rd Wavell Hts. 9/11 May Ballina Dist. O. S., RSL Club Ballina. 19/11 May The Atherton Tableland O. S., Anglican Church Hall Vernon St.
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MINUTES GENERAL MEETING LOGAN & DISTRICT ORCHID SOCIETY INC. 17th March 2015
OPENING President Laurie Baxter opened the meeting at 7.35 pm. WELCOME to all members and visitors. Welcome to our judges :-Gary Yong Gee, John Roberts, Arthur Cornell and Mick Billiau. Stewards for the evening were Gary Kapernick and Bev Pritchard. Scribes for the evening were Olympia Pearce and Glynis Cox. APOLOGIES as per register MINUTES The minutes of the February meeting, published in the Newsletter, were passed on a motion of Norm Roulstone. Seconded Graham Maggs. CORRESPONDENCE INWARDS AND OUTWARDS were accepted on a motion by Jan McKenzie, Seconded Jim Zimmerman. FINANCIAL STATEMENT Treasurer Doug Mogg moved and Ken Martin seconded that a statement showing balances of General Account $12,921.05 Investment Acc. $6046.84 be accepted and that the following accounts be accepted for payment. R. Illingworth $42.70 Postage. (Full details on file) NEW MEMBERS Ron Jenkins was welcomed to the Society. GENERAL BUSINESS The President, Laurie Baxter, reminded members of the Centro Display and sales, and the need to
get behind this. Set-up on Wednesday 7 th May 4pm, Thursday, Friday and Saturday sales. He explained that this is a chance
© £ ¢ ¢ & ¢ ¤ § & ¥ © © ¤ £ ¤ £ © ¨ £ ¤ ( ) £ £ £ § & ¢ ¤ © ¥ ¤ £ § ¨ & ¢ § © ¥ ¢ £ ( ¢ © £ ¥ ¨ & ¢ ¤ ¥ £ ! £ ¤ * ¨ ¤ ¡ © ¤ £ ¥ ¡ ¤ s Day), but if not put a photo on the plant. $50 booking fee so need to be organised to cover this cost. Brisbane Orchid Society Show, 18 th and 19th April, Mt Gravatt State School Hall. We are doing a display. We need a variety of good flowering plants. Set up is 4pm on Friday 17 th April. Our Members are able to bench some plants as it is an open show. Laurie explained to the members that the committee is looking at ways to improve the use of the library. The Committee will bring the library cupboard out into the hall if membership wants increased use of the library. Pam Price will organise a bus trip to the Toowoomba Conference and Show on Fri 24 th July leaving at 7.30am with a 4pm return. Cost will be $15 each which includes $5 entry to the show. Pam will organise lunch at another venue. This trip is subsidised by the Society. Twenty members have already indicated interest. Thanks you to Pam. TRADE TABLE REPORT Adrian Bergstrum showed the members the new pots that he has ordered in and explained the situation with fertilizers. Members were reminded to check the dates on gift vouchers. Kitchen volunteers for supper in April, Val Marsden and Myra Westphal
Scribes for April, Dale Lynch and Alf Filia.
+ , - . , / 0 - 1 2 2 3 + 4 / 5 6 / 4 7 1 / .
£ ¢ ¢ ¨ © ¥ ¤ ¤ © ¢ § ¤ £ £ £ ¤ ¨ ¤ ¤ ¤ £ ¢ ¤ £ 8 ¥ © £ ¥ ¡ £ £ ¤ ¨ ! © ¤ fertilizers. He said it was a good meeting and that the next meeting is on Easter Saturday, the subject will be pests (of orchids) Guest Speaker for the evening was Kurt Raup who spoke about the Society Website. Thank-you Kurt for all the hard work
in developing the website and for delivering an informative talk.
, : ; 4 6 5 + < 1 3 + 4 0 = 0 / : 6 9 CULTURAL AWARD Rossimlmiltonia (Rsm ). San Damiano Star *79% Merv Stewart SPECIAL INTEREST AWARD Thrixspermum platystachys John Roberts LUCKY EXHIBITOR Jan McKenzie POPULAR VOTE Open Epi. porpax Ken Haase Intermediate/Novice Onc. Sharry Baby Kurt Raup RAFFLE was drawn. CLOSURE Meeting closed at 9.30 pm Secretary Jan McKenzie
DATE CLAIMER FRIDAY 24 th JULY 2015
BUS TRIP TO THE TOOWOOMBA ORCHID SOCIETY 60 TH BIRTHDAY CONFERENCE AND SHOW
COST INCLUDING ENTRY INTO SHOW WILL ONLY BE $15 > OUR SOCIETY WILL SUBSIDISE THE BALANCE. LUNCH AT YOUR EXPENSE WILL BE AT A CLUB OR HOTEL MORE DETAILS IN THE MAY NEWSLETTER Pam
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JUDGES CHOICE RESULTS FOR MARCH, 2015
1 DENDROBIUMS: 15 AUSTRALIAN NATIVE SPECIES:
@ A B C D E E D F 1 Den . Jaihan Baxter L 1 Den. bigibbum var. superbum ? Stewart M 2 Den. Airy Soft Pink Stripe 'Delicate' Mogg D 2 Liparis condybulbon Coppus M 3 Den. Masako Taki Stewart M 3 Den. bigibbum Pritchard T & B
2 CATTLEYAS Over 100mm: 16 SPECIES EXOTIC SYMPODIAL: 1 Rlc. Mem. Crispin Rosales 'Victory' Mogg D 1 Epi. porpax Haase K 2 Rlc. Glenn Maidment 'Southern Cross' Baxter L 2 B. nodosa Pritchard T & B 3 Rlc . Island Charm 'Carmella' x Dream Trader 'Treasure' 3 Psp. papilio Haase K Haase K 17 SPECIES EXOTIC MONOPODIAL: 1 Aergs. biloba Tierney M 3 CATTLEYAS 60-100mm: 2 Angcm. longicalcar Roberts J N 1 Unknown Cook T 3 Angcm. leonis 'Her' Roulstone N & T 2 Rlc . Yen Corona 'Green Genii' Maggs G 18 INTERMEDIATE CATTLEYA ALLIANCE: 3 Rlc . Toshie's Magic * Pritchard T & B 1 Gur. bowringiana Raup K
2 Ctt. Portiata 'Blue' x Portiata 'Blue Grotto
G A H I J K L C L B M N O 4 CATTLEYAS Under 60mm: ? Lynch R & D 1 Rth . Free Spirit 'H & R' Haase K 3 Lc. Golden Girl Raup K 2 Rth . Sak's Fanfare * Haase K 3 . Elusive Dream 'Rose' Haase K 19 INTERMEDIATE DENDROBIUM ALLIANCE: 1 Den . Topaz Rosie 'Topaz' Lynch R & D 5 CATTLEYAS Novelty or Cluster: 2 Den. antennatum Tierney T 1 Ctt . Deception Drop * Maggs G 3 Den . Chao Praya Candy x Classic Gem Lynch R & D 2 Ctt . Netrasirl Fireball Maggs G 3 C. Caudebec x Baby Wintergreen Baxter L 20 INTERMEDIATE ANY OTHER GENUS: 1 Onc. Sharry Baby Raup K 6 PAPHIOPEDILUM: 2 V. Usha Raup K 1 Paph . Maudiae 'Sunnybank' x Magic Gem' Tierney M 3 Brat . Aztec 'Toni' Lynch R & D 2 Paph . Edna Ratcliffe Tierney M 3 Paph . Helen Congleton Tierney M 21 NOVICE CATTLEYA ALLIANCE: 1 C. Unknown Filia A & K 7 VANDACEOUS ALLIANCE Flowers up to 40mm: 2 Rth . Burana Beauy 'Burana' Filia A & K 1 Van . Pine Rivers 'Pink' Haase K 3 Rlc . California Girl 'Orchid Library' Filia A & K 2 V. Wacharin Ken Haase 3 Van . Mishimo Lime 'Chao Praya' Roulstone N & T 22 NOVICE DENDROBIUM ALLIANCE: 1 Den . Masaku Taki Blue x White Fairy Parry L 8 VANDACEOUS ALLIANCE Flowers over 40mm: 2 Den . Burana Stripe Parry L 1 V. Pachara Delight Baxter L 3 Den . Sakura Kehoe A 2 Pda . Pure Delight * Mogg D 3 V. Pakchong Blue 'Giant Blue' Mogg D 23 NOVICE ANY OTHER GENUS: 1 Rnc. Pacific Paranoia 'Other Side of Cool' Filia A & K 9 PHALAENOPSIS: 2 Phrag. longifolium Parry L 1 Phal. Peter Blue Sky McKenzie J & I 3 Brsdm . Golden Gamine 'White Knight' Parry L 2 Phal . Unknown Coppus M 3 Phal . Unknown Coppus M Cultural Award
10 ONCIDIINAE: Rossimlmiltonia (Rsm ). San Damiano Star * 79% 1 Enc . Pacific Paranoia 'Other Side of Cool' Haase K Merv Stewart 2 Alcra . Pacific Nova 'Okika' Haase K 3 Gbt . Sweetheart Jonel 'Everglades' Roulstone N & T Special Interest Plant of the Month
11 MISCELLANEOUS LARGE 50mm and over: Thrixspermum platystachys John Roberts 1 Bulb . Wilmar Galaxy Star Illingworth R & M
Popular Vote P Open 12 MISCELLANEOUS SMALL Under 50mm: Epi. porpax Ken Haase 1 Spa . Bill Southwood * Baxter L
13 AUSTRALIAN NATIVE HYBRID DENDRONBIUM: Popular Vote P Novice & Intermediate 1 Den . Pearl Vera Illingworth R & M Onc. Sharry Baby Kurt Raup
CORRECTION TO PLANT TAGS necessary, so that we do not have to do these alterations Would all Members who will bench orchids at any continuously. Changes are marked with * future meetings, please change their plant tags as
Tabling Statistics: 123 Plants Benched by 21 Members
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Q Q 1. Dendrobium 2. Cattleyas Over 100mm 3. Cattleyas Q 60mm to 100mm 4. CATTLEYA Under 60mm 5. Cattleyas Novelty or Cluster 1st . Den . Jaihan 1st . Rlc. Mem. Crispin Rosales 1st . Unknown 1st . Rth . Free Spirit 'H & R' 1st .Ctt . Deception Drop * Baxter L 'Victory' Mogg D Cook T Haase K Maggs G
7. Vandaceous Alliance Flowers 8. Vandaceous Alliance Flowers 9. Phalaenopsis 10. Oncidiinae 6. Paphiopedilum up to 40mm over 40mm: st st 1st . Paph . Maudiae 'Sunnybank' 1st . Van . Pine Rivers 'Pink' 1st . V. Pachara Delight 1 . Phal. Peter Blue Sky 1 . Enc . Pacific Paranoia 'Other x Magic Gem Tierney M Haase K Baxter L McKenzie J & I Side of Cool' Haase K
11. Miscellaneous Large Q 50mm and over 12. MISCELLANEOUS SMALL 13. Australian Native Hybrid 15. Australian Native Species
1st . Bulb . Wilmar Galaxy Star Under 50mm: Dendrobiums 1st . Den. bigibbum var. superbum
S T U V W X XW Y
Illingworth R & M 1st . Spa. Bill Southwood * Baxter L 1st . Den . Pearl Vera Illingworth R & M R Stewart M
Q Q 16. Species Q Exotic Sympodial 17. Species Exotic Monopodial 18. Intermediate Cattleya Alliance 19. Intermediate Dendrobium Alliance: 1st . Epi. porpax 1st . Aergs. biloba 1st . Gur. bowringiana 1st . Den . Topaz Rosie 'Topaz' Haase K Tierney M Raup K Lynch R & D
20. Intermediate Q Any Other Genus 21. Novice Cattleya Alliance: 22 NOVICE Dendrobium Alliance: 23. Novice Any Other Genus: 1st. Onc. Sharry Baby 1st . C. Unknown 1st . Den . Masaku Taki Blue x White 1st . Rnc. Pacific Paranoia 'Other Side of Raup K Filia A & K Fairy Parry L Cool' Filia A & K
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MIRIAM ANN ORCHIDS NEWSLETTER MAY 2015
TECH PAGE. In the last issue of these notes I mentioned what is alkaline hydrolysis. A large number of commonly used pesticides, other than those formulated for ULV applications are decomposed quite rapidly in alkaline water. This decomposition is called alkaline hydrolysis. Many chemicals are affected in this way. In Australia, the majority of water mixed with pesticides is alkaline, and therefore decomposition can proceed at a rate rapid enough to affect the degree of control obtained. Nufarm Ltd have U-700 that has been formulated to help control this problem. Most pesticides will be stable within a p.H range of 4.5 to 7.0. Check water to see if the p.H is below p.H 7 BEFORE mixing the chemical in it. Add U-700 to reduce the p.H. Then add the chemical. Which chemicals are affected? Below is a short list of some chemicals that are affected. GLYPHOSATE (Round Up) - Performs best at pH 4 DIPEL Incompatible in high alkaline water CARBARYL pH 6 = 150 days pH 8 2 days ROGOR pH 2 = 21 hours, pH 9 = 48 minutes MALATHION keep below pH7 For example a spray of ROGOR® will lose half its activity in 48 minutes at a water pH of 9!! For orchid growers the use of ROVRAL® is very sensitive to high pH of spray water. I hope this enlightens you. PRIMABUFF BB5 does the same thing!
NEWS FROM THE PAST. Over time many orchid brews get changed, or the recipe had a change when written down. One of these special brews is DENTS COMPOST. The other day I was browsing in a back issue of the Parramatta and District Orchid News, in fact it
was the January 1971, volume 7 No 1. Believe it or not I was President and Editor then I then came across a copy of the
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¥ ¨ ¨ ¢ ¤ © Z £ % ¦ $ [ [ $ ( $ £ £ © ¤ £ £ ¥ £ ¤ Z £ ¥ © \ © 8 ¢ ! ¨ ¡ © ¤ £ ¤ ¤ £ © ¥ Z £ § © © £ ¥ £ ¨ ¤ ¨ ] © 6 Bags fresh hardwood sawdust 6 Double handfuls of dolomite 6 Double handfuls of Blood and Bone 1 Bag dry poultry manure (could use pellets) mix thoroughly wetting sufficiently to make the whole batch moist, not wet. Store on BARE SOIL.
Turn over once a week for 4 ^ 5 weeks. There after once a fortnight. I ready for use in 4months, not before. The moisture
will heat and tend to dry out when turning, add water with a hose to keep mixture moist It will heat up to 140 ^ 160 degrees
F (42 ^ 58degreesC). As the conversion of raw wood in the sawdust to make food for the plants is accomplished by Bacteria and Fungi which is evidenced be the heat it develops, it is important the air and moisture is adequate, the mixture should therefore be piled no higher than 30 inches. When potting add a handful of fine bone dust to a bucket of compost. This is important. When potting allow plenty of room for future growth. DO NOT LOOSELY PACK ,
compost should be as firmly as possible, use plenty of water all year round, never let dry out. Pot every year as the plants
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¨ ¢ ¢ ¥ © ¤ © © ! ¨ ] ] [ © © © £ ¤ £ © ¥ ¨ ¨ ¢ ( $ © £ ¥ © £ ¥ © § ¤ £ & ¢ £ ¥ £ © ¨ ¨ ¤ ¨ ¤ £ _ £ ¨ ¢ ¥ Z ` ¥ ¨ §
Nursery would have seen the piles of made up DENTS there!
ALAN & MIRIAM MERRIMAN MIRIAM ANN ORCHIDS 89 Levy Street, GLENBROOK NSW 2773 PHONE 02 4739 5141 FAX 02 4739 8090 MOBLE 0439 514141 EMAIL [email protected]
The Logan and District Orchid Society Inc. Saturday Cultural Information Meeting Invitation to all Logan & District Orchid Society Inc. members to attend the meeting of the The Logan and District Orchid Society Saturday Cultural Information Meeting, at 51 Lionheart Street, Forestdale 4118 The meeting will be at 9.30 am on Saturday the 2nd of May 2015 The topic for the May meeting is Orchid Diseases. Please bring along any problem plants or a plant in need of a repot and if time permits we can discuss these problems and repotting methods. As with previous meetings it would be appreciated if you would contribute $1.00 towards the cost of photocopying. Our phone number is: 3800 3213 Our address is: 51 Lionheart Street Forestdale 4118
Maree and Reg are looking forward to seeing you on the 1st Saturday in May.
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Some Plants Tabled at the February Meeting tabled, one must allow for differing cultural conditions and just as importantly clonal variations. I have the taller
Cattleya Over 100mm featured a plant with eye-catching growing type which opens the same in colour as the
a b c c d e c f g a g b g h i j k f c l d m g h k j n j h o p c q r p s o t e e j r d j h o e shorter form, but shows a distinct tan colour over the more
were not overly broard, a filled in shape none-the-less orange colouration of the other. The darkening of colour
l j e q b o j k u v p j a j e o w i g h j x y b g s h o p j a b c c d t e i c b c q l z g e seems to me to become more intense with age. being somewhere between apple and lime green. Lip shape complimented the overall flower form and featured The other plant looked very much like the Ddc. goffered yellow mid-lobe edging backed by purple to the micranthum flowerwise, blooms perhaps a little more bases with veining of a similar tone receding to basal spaced on their spikes, and was labelled Ddc. uncatum. region and inner area of side lobes creating two eyes; these segments enveloped the columns in common with Ddc. micranthum was once known as Ddc. magnum , and most Cattleyas, the exterior of the tubes thus created was some treat it as a variety of Ddc. latifolium. Would brushed a reddish tone. appreciate any member with information regarding the
correct nomenclatural status of this species making it
c b k j h | j b b j } ~ j d c h p s f f c h t x
The plant was named Rlc. { available. Rlc. Magic Colors x Rlc. Norma Briscoe. On the label each grex of the crossing was designated as being Bulb. carunculatum a sequential bloomer, had a single Brassolaelaecattleya ( Blc. ) and generally those branded as bloom with bold yellow ventrals, the dorsal and petals
such will prove to be Rhyncolaeliacattleya (Rlc.). being slightly paler with fine longitudinal stripes. The
c z j n j l e c d j ~ g j b s g e z j l h t o o l g h e f j l l j k o c o p j g o o b j g dorsal was only marginally shorter than the ventrals. The genus and with Guarianthe, for example being split from red labellum, somewhat terete, tapered to a point and was it, any registrations before the changes need to be bent downwards at right angles. checked; if unsure I endeavour to verify if title entered on
label is what the grex still should bear. When doing the Bulb. dearei carried on separate spikes two predominantly
r l j x i p j i o p l c q r p o p j u u u g o g a g e j c h } g r s i
yellow blooms, the dorsal sepals were the broadest
c b c q l e t m g y y b s h r o p j h r b s e p e y j b b s h r g e w o p c q r p o s o
segments, of a darkish honey-tone they were of a hooded
g e c h o p j b g a j b m q e s h r } c b c q l e t z s o p o p j } q t r c o h c z form that covered the column and petals and were heavily result, a corrective search revealed the American form of covered with fine spotting while the ventrals each carried spelling. This grex, incidently, was registered by a a red stripe to their mid-lines. Japanese nursery in 2003.
Paphiopedilum Dragontale a plain leaved type whose
a b c c d e t k l c c y s h r y j o g b e z j l j d g l j k b e y s l g b b j k o p l c q r p
Cattleya Under 60mm presented a Rth. (Pot. ) Free Spirit
} t i g l l s h r g e s h r b j a b c c d y b q e c h j a q k m f b c z j l their full length, apart from lips segments were colour was totally yellow, the flat bloom of pleasing shape predominantly yellow-green, sepals had vertical brown and like the aforementioned the segments were, though stripes with petal bases spotted this tone for more than not broard, of good form; their other common factor half their length, these spots becoming smaller over the being that each is deserving of its growing space. darker tips. Pouches were more creamy to bases and tips
with upper portion brushed and finely veined a mahogany
h s e i j b b g h j c q e z g e g r c h s e s g h c e q l j } b q j g o j l
w tone.
g s b s h r t i g l l s h r o z c e y s j e j g i p z s o p f c q l a b c c d e g h k
j x } p c s i j t p g k g e b s r p o b g l i p j k e y s j i g l l s h r o j h
h j a q k m o p j f b c z j l e t y g b j a g e j o c h j z g e a l q e p j k a b q s e p o c c Brs. the tepal tips, the lips were dark inkish blue to their bases blooms with yellow-green tepals each with several dark with lines of this colour radiating into the forward edges spots and bars to their bases, the more cream than green that were washed and spotted paler bluish tones. lips had broad tips that were more finely spotted than other segments. A Dendrobium Juleen High (Den. johannis x Den. lasianthera), had four spikes of from fourteen to eighteen Another Brassia showing the spidery form of the Brs. Rex blooms respectively, the spiralled tepal segments all just mentioned was Brs. Mem Fritz Boedecker with showed a reasonably equal degree of twisting, the flowers fourteen blooms on a reasonable length of arching spike,
were of a bluish tone and were nicely displayed upright blooms paler green and of narrower segments, but not dis-
e s d s b g l d g l s h r e o c o p j } j x t a q o e p c z s h r g d g l j k spikes. Brs. verrucosa influence. In Species Sympodial two Dendrochilums were tabled, the most floriferous was a Ddc. micranthum which appeared I checked the breeding of this clone out of curiosity to find
to be of the shorter growing type and boasted in excess of it to be Brs. (arauigera x Rex ). Now Rex is Brd.
g h k w i g h t o l j i g b b g i b c h j c f twenty spikes. The flowers, when one looks down the verrucosa x gireoudiana Brs. spikes, are almost hidden due to the hooded effect of their Rex showing marked Brs. verrucosa characteristics so this
bracts and were of a pale somewhat lemon tone, signalling latter species must be dominant, it would appear, to the
z p s i p } l s o | t z g e that they were probably just opening. Although the buds Brassia arcuigera (Syn. longissima of my clones are darker on opening than those of the plant registered under ).
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Some Plants Tabled At The March Meeting These latter plants were also labelled as Odontonias and as Odontoglossum is no longer a valid genus, with most Species Monopodial featured an Aerangis biloba with a being sunk on Oncidium, I thought it would probably be pendulous spike of six pure white blooms plus six buds. a Miltonidium, but the R.H.S. check proved it to be a With this species the apical bloom opens first with the Rhynchonia ( Rnc. ). The Rhyncostele parent was the
balance opening in succession towards the spike base; former Odm. bictoniense , now Rst. bictoniensis. I t was
²
¢ ¢ § ³ ¡ ¹ ³ ¢ ¡ ¡ º ¡ ¦ ¡ these blooms have the spurs or long nectaries (in ¡ relation to flower size) common to the angraecoid types. Orchid hybrids 1999-2001 addendum but had The leaves had cleft, or bilobe tips and I hereby quote transferred to Rhynchostele for the 2002-04 edition;
the author, Isobyl la Croix, of the book Aerangis, which this grex was registered in 2004, so the information of
¡ ¡ ¢ £
its being of the Rhynchosia (hybrid) genus was
¤
¥ ¦ ¢ ¡ § ¥ ¡ ¡ ¨ ¡ ¡ Angnraceum available from then on so propagators would have been bilobum in 1840 from a plant collection in Ghana, and able to embrace correct nomenclature and avoid Schlecter transferred it to Aerangis in 1914. The epithet confusion among their customers, particularly novices.
bilobum must refer to the bilobed tips of the leaves © a
¸ º
feature common to all species of aerangis, but few were In Dendrobium section a Den ¯
ª
« ¬ ® ¯ ° presented four spikes, and while three were fairly short with only a few blooms open, the main and most The biloba displayed at our meeting was growing floriferous spike, which was of a slightly arching habit, (seemingly quite happily) on a length of tree stem or carried nineteen blooms and two buds, the majority of branch with bark attached; this was a piece of which were well presented. Their colouration was callistemon its owner informed me. predominantly a pale cream-green, the lip bases were of a wine tone and the tepal bases were lightly brushed this An Angcm. leonis presented three white flowers from colour. two spikes, interestingly the spurs of these blooms are
of an (inverted) u-shape; the leaves are gently curved in An upright spike with seventeen blooms (plus four
² ª
º · º ¨ ¸ ½ ¢ ¡ ¢
a shallow accent style. This is one of the smaller buds) on Den. ¼
growing Angraecums. in a very good display. The blooms perhaps were not of
² ²
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Representing the other end of the size spectrum of to meeting in the dorsal centres, this can often though,
Angraceums to the previously mentioned plant was be preferable (pers. opinion) to heavy overlapping. The
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two buds on a long straight spike which was presented striping and veining in darker tones while the lip throats
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at a bold angle, these flowers had green tepals and white ¼ lips and quite long spurs. these two dendrobiums.
As most months I make copies of my articles, I was A Bulb. Wilmar Galaxy Star produced from the bulb
able to ascertain that when tabled in March last year this
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¨ bases five lengthy spikes each carrying (typically) a
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¢ single bloom, each a predominantly yellow tone spotted and striped red more heavily spotted to reverse of dorsal time that its clean foliage and general good culture was sepal, ventrals brushed red longitudinally, lips brownish an example of how orchids, not just angraecums, should with recurred tips. This primary hybrid appears to be be grown and displayed, that still holds true for this more influenced by its Bulb. dearei parent, an example season. of which was tabled at last months meeting.
In Novice Any Other Genus was a Rhynchonia Pacific
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· A Cyc. Brown Passion had three inverted or non resupinate blooms of a green base tone spotted all over the generic title of Odontonia (Odtna. ), more on this reddish reddish brown, lips white, with red flushing to later. It carried five blooms and one bud on a spike of their tips, the balance of mid-lobes flushed with minute adequate length in relation to plant size, their lips were spots of this colour.
purple while the tepals had pale brown spotting that was
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¿ ¸ ¹ muted by an overlay of pale green and edged lavender, Oncidiinae featured an Aliceara · this effect showing through to the rear thereof, and with three spikes one with buds only, others with nine having full length green central stripes. A couple of and ten predominantly yellow blooms, tepals were plants of this clone were tabled in Oncidiinae, these blotched and spotted brown, the lips being a brighter were larger plants hence each carried more flowers; yellow tone each with a couple of spots to their bases however, I noticed with one in particular that although around the lamellae. some lips had rounded tips, as with the novice plant, those of other flowers were noticeably pointed, these blooms were on the same spike.
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IF THERE IS only one thing that you need to know to successfully grow orchids, it is that orchid roots are different from the roots on your other houseplants. The orchid root consists of an inside core (cortex) that is very tough and carries nourishment and an outside covering (velamen) that is a sponge like material that absorbs water, fertilizer and oxygen. Healthy root tips are bright green (and sometimes red). The longer the green portion, the faster the root is growing.
FUNCTION OF Sue Bottom ORCHID ROOTS Many orchids are epiphytes, meaning they grow on trees, where the roots attach the plant securely, search out nutrition and absorb dew and rainfall, among
other things.
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Absorb Water When dry, orchid roots are white but they should quickly turn green when they are watered. When wet, the velamen acts like a sponge, swelling up with water to be absorbed later by the plant. When dry, it acts as an impermeable barrier to prevent water loss from the plant. Attach to Substrate Although aerial roots can also take up water and nutrients, their primary purpose is to keep the orchid attached to its surface. Aerial roots, once attached, may become flattened to provide more attachment surface area. The roots cling to any substrate so well that at times it can be very difficult to remove these clinging roots from whatever they are attached to. There is more velamen on aerial roots and they are adapted to the cyclical drenching and drying of intermittent rainstorms. These roots will become soft and green when they have been continually wet for 10 minutes or so, only then will they absorb water. Gas Exchange One very important function of epiphytic roots is the exchange of gases, mostly to take in oxygen and expel carbon dioxide, so they enjoy being exposed to moving fresh air. Most orchids can't be grown in potting soil. Special high- porosity potting mixes have been developed to ensure there is sufficient air around the roots. Photosynthesis Another job for some roots is to photosynthesize, which is why you often see orchids grown in translucent pots. There are some orchid species that do not have leaves, but obtain their energy solely from chlorophyll in their roots. Temporary Storage Many roots also provide temporary storage for food and water.
REPOTTING New orchid growers are often terrified of the prospect of dividing and repotting orchids. Without some friendly assistance, new growers will often leave plants in the same potting mix long after that mix has degraded, so the plants lose their roots and struggle to survive. Potting orchids in a good mix at the proper time will help ensure their survival and your self-confidence in growing orchids. The best time to repot your orchid is when new roots are just emerging because the plant will become acclimated the most quickly at this time. If you're careful, you can repot when new roots are 1/4-1/2 inch (about 6-12 mm) long. These new roots can be easily broken during the repotting process and when damaged, they will not regrow, so if they're longer than 1/2 inch (12 mm), wait until they are 4 inches (10 cm) long or more before repotting. It these longer roots are broken during repotting, they'll branch and continue to grow. Root growth for some orchid species is almost impossible to initiate except at very specific times in the growth cycle. Some bifoliate Cattleya species only put out a very small number of roots in a given year and if these are damaged or destroyed, there will be no regrowth until the following year at the same time. Bifoliate cattleyas should only be repotted when new roots emerge from the new growth. Taming Aerial Roots When you have a plant that has its aerial roots hanging outside the pot, the roots do not respond well to being placed inside the pot and covered with growing mix. It is better to place these roots in a bulb pot with a few large chunks of lava rock and after the roots begin to branch, add additional potting mix a little bit at a time. Change in Potting Mix Orchid roots become accustomed to their growing environment. When there is a substantial change in this environment, the plant has to grow a different set of roots acclimated to the new conditions. The roots of an orchid that has been mounted or grown in a coarse medium tend to be hard and resistant to drying, unlike the fat, soft roots found in a sphagnum moss, peat or other water-retentive mixture. Roots on plants grown in sphagnum will not easily adapt to epiphyte-like conditions, nor will roots grown in a coarse, dry medium adapt to sphagnum moss. Roots of both will die if
there is a radical change in the type of medium, although new roots will grow and establish in any medium.
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