Newsletter of the

Species Orchid Society of

Western Australia (Inc)

Vol 31 No 1

June

2019

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2019

DECEMBER 19
NOVEMBER 19
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SEPTEMBER 19
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APRIL 19
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FEBRUARY 19
JANUARY 19

2018

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JANUARY 18

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JANUARY 17

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2015

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FEBRUARY 15

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FEBRUARY 14

2013
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2012
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FEBRUARY 12

2011
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2010

DECEMBER 10
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JUNE 10
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2009
NOVEMBER 09
OCTOBER 09
SEPTEMBER 09

AUGUST 09
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MAY 09
APRIL 09
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2008
NOVEMBER 08
OCTOBER 08
SEPTEMBER 08
AUGUST 08
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APRIL 08

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2007
NOVEMBER 07
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SEPTEMBER 07
AUGUST 07
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MAY 07

Members of Note
Quiet Achievers
&
Life Members

Members Orchid Collections

Members can have pictures of their orchid collection posted here. Just email Tony

Michael Zink's Orchids

Brassavola nodosa

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Orchid Articles

Paul Carver's
Angreaceum
sesquipedale

Anne O'Callaghan Cultural Award:

Awarded to Bruce for a well-grown and flowered Gomesa crispa.

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NEXT MEETING - TUESDAY 11th June @ 7.45
AT WILSON COMMUNITY HALL
,
Braibrise Rd, WILSON

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Editor e-mail: - Ph/Fax: 9296 1765

On-line Membership Form PDF or WORD

Download; Plant Display Template

Species Orchid Society Rules PDF

Inter Society Orchid Display & Workshop


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MINUTES OF THE GENERAL MEETING

14 May 2019 8.05pm
Present: 38 members as per register.
Apologies: 3 members.
Visitors: Lorraine and Jenni
New members: Nil
Minutes: Minutes April meeting accepted (Lynn, Ian)
Business Arising: Nil


Raffle: Helen, Jacqui, Lynn, Bruce, Ray and Lynne.
Name Badge: Bruce

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Graham & Margaret's Orchid


Eriochilus dilatatus

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FORTH-COMING EVENTS
Home visits:
At 10 am on the Sunday after the fourth Thursday of each month. Please bring chairs and food to share.


30 June - Ray, Bullsbrook.
28 July - Ken & Chris, Henley Brook.
25 August - Graham & Margaret, Hamersley.
29 September - Lynne, Eden Hill.

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Bruce's Orchid


Gomesa crispa

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FOR SALE/WANTED
Victor wants to acquire a plant of Rhynchostele rossii and is also interested in small Angraecoid species. If you have spare plants, please contact Victor on 9243 1843 or e-mail vnquin@gmail.com

Lynn wants to acquire plants of Oncidium (Odontoglossum) naevium, and Dendrobium aggregatum (lindleyii) and farmeri if you have a spare plant. She is also collecting wine/champagne corks if you have any that you do not want. Please phone Lynn on 0414 922 923 or e-mail contrarymiss@hotmail.com

Nahiid is looking for plants of Phalaenopsis gigantea, Phalaenopsis hieroglyphica and Phalaenopsis bellina. If you have any spare plants of these species, please phone
Nahiid on 0415 818 850 or e-mail her at

N.Stephens@murdoch.edu.au

Harry is hoping to acquire a plant of Epidendrum densiflorum. If you have a spare division, please call Harry on 0412 403 696 or e-mail
harry.ashton@live.com.au

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Correspondence:
Inwards:
GCA (Evidence of Cover - insurance)
Libby (ISODW notes and Information)
Mich (Possible plant orders from Ray Clement)


Outwards:
Nil

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A message from The Water Corporation

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The difference between

Phalaenopsis amabilis & Phal. aphrodite subsp. formosana

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General Business:

1. A reminder that our June meeting is our Silent Auction.

2. The bus trip at the Albany ISODW has a few seats left.

3. Ray mentioned that a species orchid won the Grand Champion at the recent OSWA show and another was runner-up. Ray encouraged members to try to produce specimen sized species plants as the results are worth the effort.

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WA terrestrial orchids in situ – a four-day field trip to the Mid-west

http://members.iinet.net.au/~emntee/Orchids_in_The_Mid-west.htm

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Our 2019 Life Members - Graham & Margaret
Graham and Margaret joined the Species Orchid Society in November 1994, and immediately showed that they were going to be the kind of member that believed in active rather than passive involvement. Together and separately, they have brought much to our Society, most significantly their shared passion for terrestrial orchids. Both delight in sharing their knowledge about our local orchids with others.


With Past President, Reg Allison, Graham was instrumental in obtaining approval to rescue dig orchids from major road extensions and development sites. As seen in the photo above, this included a project to remove and replant terrestrial orchids on the Fiona Stanley Hospital site. Graham has continued Reg Allison's initiative to obtain approval for us to water our orchids daily, notwithstanding watering restrictions.


Graham firstly served as our Secretary from February 2000, then Vice President 2010-2012, and President 2012-2014 before again taking up the position of Secretary. Most recently, at the AGM in May 2019 Graham agreed to serve another year. Margaret was our Quiet Achiever in 2015, and continues to help out at our meetings. Their life partnership is most important to them, and Margaret has been by Graham's side all this time as an ever resourceful and willing helper at our meetings ,and the events in which the Society has taken part. Even though Graham and Margaret don't care for some of the competitive aspects of orchid culture, preferring instead to simply display their terrestrial and other species orchids for the benefit of others, they can always be found working with other members to stage displays and to answer questions from members and the general public.


Both Graham and Margaret have coped with unexpected health challenges in recent years, but refuse to surrender and continue to lead full lives making the most of their retirement, and the freedom to travel locally to view terrestrial orchids and overseas to see orchids in the wild. Recently, Graham was appointed an Associate Director of the Australian Orchid Foundation recognising his expertise, knowledge and contribution to the cultivation of terrestrial orchids. Both Graham and Margaret have been tour leaders on local tours associated with the Australian Orchid Conference in 2012 and with other local WA Orchid Spectacular events.


We look forward to their ongoing involvement in the Species Orchid Society, and their help with staging a major terrestrial orchid display at the World Orchid Conference in 2023, as well as with our WOC terrestrial orchid propagation program.

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Siva's Orchid

Oncidium pulvinatum

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The Genus Dendrobium

Contd from last month

Dendrobium forbesii is recognised as one the most attractive in the Latouria section. The flower colour is variable with some forms very white and others with more light green or cream tones. Schlechter identified Dendrobium forbesii var. praestans which he believed was larger than the form described by Ridley. Dendrobium forbesii is readily recognised by its broad petals, sepals which are almost glabrous and lateral sepals with a broad lacerate keel on the mid-vein.
Its common name Forbes' Dendrobium is named for an 1800's English Orchid collector. Synonyms in use are Dendrobium ashworthiae O'Brien 1901; Dendrobium eustachyum Schltr. 1923; Dendrobium forbesii var. praestans Schltr. 1912; Latourea forbesii [Ridl.] Breiger 1981; Latourorchis forbesii [Ridl.] Breiger 1981; Sayeria eustachya (Schltr.) Rauschert 1983; Sayeria forbesii (Ridl.) Rauschert 1983 Ridl.


Dendrobium johnsoniae F. Muell. 1882 SECTION Latouria is a lowland Papua New Guinea, Irian Jaya and Bougainville Island species found at 500-1,500m as a small to medium sized, warm to cool growing epiphyte on montane forest Casuarina and Araucaria trees in high light along streams and gullies. This species has narrow fusiform (spindle shaped - widest in the middle tapering to both ends) to 9 noded, purple brown or green stems carrying to 4, suberect, ovate, bilobed apically leaves. Flowering in autumn and winter (although secondary flowering can take place throughout the year) on 30cm erect, several to many lowered inflorescences carry long-lasting, pleasantly fragrant flowers arising from the nodes near the apex of both leafed and leafless canes. Some early records that showed this species as occurring in Northern Australia have been shown to be erroneous.

 

 

Cribb, P. says Dendrobium johnsoniae is allied to Dendrobium rhodostictum and Dendrobium otaguroanum but is readily distinguished by its pure white flowers veined with purple-red on the side-lobes only, its rhombic petals and an elongate lip with a lanceolate midlobe.
Photo source:
Its common name, Johnson's Dendrobium is named after the daughter of an 1800's New South Wales Pastor.

 

Synonyms in use are Dendrobium macfarlanei Rchb. f. 1882; Dendrobium monodon Kraenzl. 1910; Dendrobium niveum Rolfe 1891; Latourorchis johnsoniae {F. Meuller] Breiger 1981 and Sayeria johnsoniae (F. Muell.) Rauschert 1983

In situ photo source:

Dendrobium x 'kips special' is a natural hybrid between Dendrobium rhodostictum and Dendrobium ruginosum, and, according to Laverack, Harris and Stocker 2000, can be found growing on trees along roadside cuttings on the road to Panguna mine, Bougainville at 1,200-2,000m in constantly wet climatic conditions. A small plant, it has large, long-lasting (up to 3 months) flowers and grows well in cultivation. Unfortunately, I could not find any photos of this natural hybrid that I was confident are correct.

 

 


Dendrobium macrophyllum A. Richard 1834 (not Lindley or Ames) SECTION Latouria is a widely distributed species found in Java, Lesser Sunda Islands, Moluccas, the Philippines, Sulawesi, Irian Jaya, Papua New Guinea, Solomon Islands, Fiji, New Caledonia, Samoa, Santa Cruz, Vanuatu and the Caroline Islands. A medium to large sized, hot to cool growing epiphytic species, it can be found in habitats ranging from hot coastal primary to cool montane forests from sea-level to 1,700m.


Photo source:

This species has ribbed, slightly flattened, slender basal and thicker upper stems carrying 2-4, large, persistent leaves. Flowering from spring to late summer, erect 15-40 cm racemes arising from the leaf axils at the apex of the leafed canes carry up to 25 heavy textured, colour variable, delicately fragrant long-lasting flowers. This species grows into large clumps over time in its native habitat.
In situ photo source:


Dendrobium macrophyllum is the most widespread species in Section Latouria, and is variable in flower size and colouration. However, it may be readily distinguished from all allied species with setose ovaries (covered with setae or bristles) by its usually 3-leaved pseudobulbs, oblong-elliptic leaves, relatively narrow petals, and broad side-lobes of the lip. The closely allied Dendrobium polysema has more widely open flowers and tapered lip side-lobes
Its common name is the Large-Leafed Dendrobium, while in New Guinea it is known as the Pastor's Orchid.
Many synonyms exist for this species. These include Callista gordonii (S. Moore) Kuntze 1891; Callista macrophylla (A. Rich.) Kuntze 1891; Callista veitchiana (Lindl.) Kuntze 1891; Dendrobium brachythecum F Mueller & Krzl. 1894; Dendrobium ferox Hassk. 1835; Dendrobium gordoni S. Moore Ex Baker 1883; Dendrobium lucae F. Mueller 1910; Dendrobium macrophyllum var. huttonii H.J.Veitch 1873; Dendrobium macrophyllum var. subvelutinum J.J.Sm. 1911; Dendrobium macrophyllum var. ternatense (J.J.Sm.) P.O'Byrne & J.J.Wood 2010; Dendrobium macrophyllum var. veitchianum (Lindl.) Hook.f. 1867; Dendrobium musciferum Schlechter 1912; Dendrobium palawense Schlechter 1914; Dendrobium psyche Krzl. 1910; Dendrobium sarcostemma Teijsm. & Binn 1866; Dendrobium sarcostemma Teijsm. & Binn. 1830; Dendrobium ternatense J.J.Sm. 1909; Dendrobium tetrodon var. vanvuurenii J.J.Sm. 1920; Dendrobium tomohonense Krzl. 1910; Dendrobium veitchianum Lindley 1847; Latourea macrophylla ( A.Rich.) F.G.Brieger 1981; Latourea muscifera ( Schltr. ) F.G.Brieger 1981; Latourorchis macrophylla [A.Rich.] Breiger 1981; Latourorchis muscifera (Schltr.) F.G.Brieger 1981; Sayeria macrophylla (A. Rich.) Rauschert 1983; Sayeria muscifera (Schltr.) Rauschert 1983; Sayeria palawensis (Schltr.) Rauschert 1983; Sayeria psyche (Kraenzl.) M.A.Clem. & D.L.Jones 2002


Dendrobium polysema Schlechter 1906 SECTION Latouria is a small to large sized, hot to cool growing epiphyte found in eastern Papua New Guinea at 1,200-1,900m, and in the Solomon Islands, Bougainville Island, the Santa Cruz Islands, and Vanuatu at 150-750m. This mist forest species is found on mossy tree trunks and main branches. Erect, 3-5 noded yellow stems carry 2 elliptical-oblong, erect to spreading leaves. Flowering in autumn through late winter and early spring, flowers are borne on erect, densely flowered racemes that arise from the apex of a cane. The open, flattened heavy substance flowers are long lasting with hairy backs to petals and sepals. Unlike some others in this Section, the flowers are clearly separated rather than tightly bunched.


Photo source:


Dendrobium polysema is closely allied to the widespread Dendrobium macrophyllum but can be readily distinguished by its two-leaved pseudobulbs, broader elliptic leaves and the tapering side-lobes and the heavily spotted midlobe of the lip. The flowers open more widely with the petals often reflexed and the midlobe deflexed giving the flower a flat appearance.

Dendrobium punamense Schltr.1905 SECTION Latouria can be found in Papua New Guinea, and Manus, New Britain, New Ireland, Bougainville and Guadalcanal Islands. This unusual member of the Latouria section is a miniature sized; warm growing epiphyte or occasional lithophyte that is found in deep shade on the trunks and branches of moss covered rainforest trees at 25 to 500m. It has erect to pendulous, 3-6 noded; green to olive green stems carrying 2, apical, oblong-lanceolate, basally twisted leaves. Flowering in winter, the relatively short inflorescence carries few flowers. Dendrobium punamense is most closely allied to Dendrobium euryanthum; sterile specimens of the two being indistinguishable. However, it differs in flower colour and in lip shape, the side-lobes being as long as the midlobe.
Photo source:

Its common name is the Punam Dendrobium. Synonyms in use are Dendrobium waterhousei Carr 1934; Sayeria punamensis (Schltr.) Rauschert 1983

 

Dendrobium rhodostictum F. Muell. & Kraenzl. 1894 SECTION Latouria is found from eastern Papua New Guinea to Bougainville Island as a warm to cool growing epiphyte on montane rainforest Castanopsis and Nothofagus trees or as a terrestrial on steep, wet moss covered slopes at 800-1,200m. A small to medium sized species, it has basally fusiform to apically swollen, yellow, 3-5 5 noded stems with 2-4, dark green, persistent, leathery leaves. Flowering in autumn and spring, very short racemes carry 3-8 waxy, fragrant flowers. This species is similar to Dendrobium eximium, but differs in the lack of hairs on the exterior of the sepals. The defining characteristic for Dendrobium rhodostictum is the broad lip, which is three-lobed, apiculate, difficult to flatten and that has rose-purple spots outside on the lateral margins and similar coloured stripes on the inside of the lip, both which can be seen through the reverse side. Specimens collected from New Britain have somewhat larger flowers with a more markedly three-lobed lip than those from New Guinea or Bougainville, and have pseudobulbs which are somewhat swollen along their entire length. These differences might warrant recognition at sub-species level.

Photo source:


Its common name is the Red-Spotted Dendrobium Synonyms in use are Dendrobium madonnae Rolfe 1903 and Sayeria rhodosticta (F. Muell. & Kraenzl.) Rauschert 1983.


Dendrobium shiraishii T.Yukawa & M.Nishida 1992 SECTION Latouria can be found in western Papua New Guinea as a warm to cool growing epiphyte, terrestrial or lithophyte in lower montane forests at 500-1,500m. It has greenish brown, clustered, grooved stems that are apically swollen carrying, 2-4 leathery, dark green, elliptic-oblong leaves. While I did not find published in situ flowering period data, it is likely to be autumn. Terminal racemose inflorescences to 40 cm long carry several long-lasting, wide open flowers.
Photo source:


Dendrobium shiraishii is closely related to Dendrobium macrophyllum, from which it differs in the striking colour pattern and in the callus which is almost forked at the apex. Only recently described and said to be discovered by Shigeru Shiraishi, this species was known to past Dutch residents of New Guinea. A photograph of a plant collected by Stüber was published in 1935 in the journal De Orchidee 4: 287. More recently, in 1973 van Bodegom illustrated and informally described this species as a nameless variety of Dendrobium macrophyllum, recommending that it be regarded as a new species. It differs from Dendrobium macrophyllum as it has somewhat thicker, much darker stems, the inflorescence that arises from the apex of the stem. While some authors regard it as a natural hybrid, it has been accepted as a valid species by the RHS. Its common name is Shiraishi's Dendrobium named after its finder, a Japanese orchid enthusiast and author.


Dendrobium spectabile (Blume) Miq. 1859 SECTION Latouria is the type species for the Section, and is probably the best known Latouria Dendrobium. Found in Papua New Guinea and the Solomon Islands, Dendrobium spectabile is a spectacular but somewhat alien-looking medium to large sized, hot growing epiphyte living in primary rainforests, lowland swampy forest, mangroves, lower montane forest and moss forests, or on cultivated Coconut, Casuarina and rain trees (Samanea saman) in urban areas at 300-2,000m although most often found from 300-500m. It can also be found as an occasional lithophyte on rocks and as a terrestrial on ridge tops where it can be found growing on the surface of the ground in thick moss and peat. While this species survives exposure to high light and hot temperatures at lower elevations, it is generally more abundant and vigorous in cool, shady locations at higher elevations.


Photo source:


Semi globose (shaped like half a sphere) at the base, the up to 8 noded stems carry 5 apex, lanceolate to ovate, coriaceous, obtuse leaves. This species flowers in winter and early spring on axillary 20- 40cm few to many flowered racemes with minute, oblong bracts arising near the apex of leafed mature canes.
An albinistic form Dendrobium spectabile fma aureum is also known.
Dendrobium spectabile is allied to Dendrobium alexandrae but is easily recognised by the very undulate flower segments and the longer lanceolate lip midlobe which is striped with purple rather than being spotted. Its common name is the Grand Dendrobium.
Synonyms in use are Callista spectabilis (Blume) Kuntze 1891; Dendrobium spectabile fma. aurea Christenson 2006; Dendrobium tigrinum Rolfe ex Hemsl. 1891; Latourea spectabilis Blume 1849; Latourorchis spectabile [Bl.] Breiger 1981; Sayeria spectabilis (Blume) Rauschert 1983. …..contd.

 

Contd next month

See the full article (so far) HERE

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Peters's Orchids

Cattleya labiata


Cattleya maxima


Dendrobium mortii


Laelia praestans


Stenoglottis longifolia

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NOTES FROM YOUR COMMITTEE

1. The Silent Auction will take place at the June meeting. This is our annual fund-raising, and have fun event. Please bring along any spare orchids, species or hybrids that you might have, any other plants likely to be of interest to members and orchid paraphernalia such as books, or even wine to consume while looking at your orchids.


2. Please refrain from watering plants on the day of the auction as the bids are impossible to read if they are wet.


3. Donated items will be placed into groups and members will be invited to make their bids on slips that are placed under the lot. Once all the bids are lodged, they will be sorted with the highest bidder winning the lot. It is a great opportunity for members to expand their collections. Remember to bring an extra box or plant tray to take home your purchases.


4. Following our AGM last month, we have some vacancies on our committee. If you are interested in increasing your involvement in contributing your ideas to planning the Society's activities, please let us know. Our Secretary, Graham agreed to stay on for a further year, but as you will see from the notes abov, he has served in this role for many years and it is time that we gave him a rest.


5. The Society has committed to the Albany Inter Society Orchid Display and Workshop on 3-4 August. Even if you are unable to attend, we need your flowering species orchids for our display and will make arrangements to collect and return them to you. As advised at a recent general meeting, Albany Orchid Society is encouraging us to take orchids for sale as their members and Albany residents have limited opportunities to buy the kind of orchids that we grow.


6. Annual membership renewals were due in February. Please pay the Treasurer. Payment can be made by EFT to the Species Orchid Society account at Bendigo Bank, contact Adrian for the details.

 

7. If you haven't ordered your new badge yet, please see Mich. The cost for badges with a magnetic clip is $13.50, and with pin is $11.50.

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Unusual and Surprising Orchids and their
Reproductive Biology
by Ken Jones

See the whole article (so far) HERE

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Norm's Orchids

Dendrobium bigibbum var. compactum


Dendrobium bigibbum
var. compactum alba


Paphiopedilum helenae

 

 

 

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MONTHLY PLANT


None this month due to the Silent Auction

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Orchids in Their Natural Habitat and in Cultivation -
Ecuagenera's five-day pre-WOC tour

See the full article HERE

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Fiona Stanley Hospital Site Terrestrial Orchids

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Hygienic Practice

The benefits of hygienic practice in keeping your collection free of plant diseases.

Hygiene tips to keep your orchids disease free.

Checklist in WORD in PDF

See the full article HERE

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Financial Report: Tabled by Adrian. Current balance is $10,927.53 (Ray, Eric).

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Tony & Mavis's Orchids

Phalaenopsis hieroglyphica

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STANHOPEAS by Bill Mather & Ken Jones

See the article HERE

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As usual, any and all comments are welcome

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