Bromelcairns Bimonthly Newsletter of Cairns Bromeliad Societ Inc. 2012 # 2 P.O. Box 28 Cairns Queensland 4870 Austalia
President Dave Weston 0740578604 V-President Karen Stevens 0740361086 Secretary Lynn Hudson 0740533913 Treasurer Frances Boyd 0740552550 Librarian Maria Grant 0740370161 Editor Lynn Hudson 0740533913 Editor Assist. Moyneen Charlton 0740337390 Member Concierge Nalda Wilson 0740544825 Popular Vote Steward Karen Cross 0740545497 OIC Raffles Lesley Hepburn 0488788892 Honorary Life Member - Grace Goode O.A.M. Honorary Life Member - Kay Edington Life Member - Lynn Hudson Life Member - Robert (Bob) Hudson ******************************************************************** Aims of the Society Promote and Develop Interest in Bromeliads through Friendship To Co-operate with similar Clubs throughout the World ******************************************************************** Membership Fee: $15 Single, $25 Family, Country Member $25. $7.50 junior (if not in family membership) Meetings start at 1.pm sharp first Saturday of the month. Please bring a cup and a chair.
Library: All books & magazines borrowed are to be returned in good order to the following meeting. If not on wait list, they may be rebooked. Plant Display/Sales: To participate, a member must be financial and circumstances permitting, have attended at least three meetings in the past six months. Where the society is charged a stall fee - 20% of sales are deducted for club funds. No charge venue & meetings - 10% of sales is deducted. All plants to be clean, free of disease, named and price tagged. Show Plants: Must be the property of and in the custody of the entrant for the past three months. For Society Shows the entrant must be financial and have attended at least three meetings during the past six months. Pens, Plant Tags & Pots: available at each meeting. If reprinting article, wholly or in part, please acknowledge Author & Newsletter. Any article &/or Bromelcairns will be Emailed on request to [email protected] [email protected] Club Actvites & Around te Members MARCH: From Moyneen. Our meeting was hosted by Barry Osborne at Woodward Retirement Village. Thank you for a very pleasant comfortable air conditioned venue where the main view is the pond, bridge and pretty water lillies, a striking feature of this garden. They are beautifully presented, very well kept and a pleasure to wander around. A stroll further up the path leads to a nice display of colourful bromeliads growing in dappled shade under trees. Bromeliads are tucked in all through the gardens - numbers seemed to have increased since our last visit. Again this month a very good range of plants where bought in by members for show and judging. As always new, interesting and well grown plants amazed some of us. Thanks for bringing them in. Maria, our Librarian, encouraged us to make full use of our library resources, this month’s feature was journals from other societies. Each month I plan to showcase two members to share with us something of themselves, how they came to join the society, their favorite plant and experiences. First is Karen Cross on page 5. (Until next time, happy growing, Moyneen) MINI SHOW – Flowering Bromeliad 1st. Tillandsia cyanea – Brendan Leishman 2nd Tillandsia ‘Silver Queen’ – Bob Hudson 3rd Orthophytum ‘Warren Loose’ – Gloria Wegner Foliage Bromeliad st 1 . XNeophytum ‘Galactic Warrior’ – Brendan Leishman nd 2 .Neoregelia ‘Kahala Dawn’ – Karen Cross Tillandsia cyanea 3rd. Tillandsia ‘Rio Hondo’ – Bob Hudson POPULAR VOTE: NOVICE - Bromeliad: 1st. Neoregelia ‘Burnsies Spiral’ – Paul Venturi 2nd. Neoregelia ‘Vulkan’ - Kath Radloff 3rd. Neoregelia ‘Dr Carl’ - June McGlew Cryptanthus: Cryptanthus ‘Glad’ – Paul Venturi Tillandsia: Tillandsia lieboldiana – June McGlew OPEN - Bromeliad Tillandsia ʻSilver Queenʼ 1st. XNeophytum ‘Galactic Warrior’ – Brendan Leishman 2nd. Orthophytum ‘Warren Loose’ – Gloria Wegner 2nd. Neoregelia ‘Kahala Dawn’ – Karen Cross Cryptanthus 1st Cryptanthus ‘Elaine’ – Karen Stevens nd 2 .Cryptanthus ‘Starlite’ – Gail Taifalos Cryptanthus ʻGladʼ 3rd. Cryptanthus ‘Marion Oppenheimer’ – Beryl WWatson Tillandsia 1st. Tillandsia cyanea – Brendan Leishman 2nd Tillandsia ‘Silver Queen’ – Bob Hudson 3rd.Tillandsia ehlersiana – Gail Taifalos Cryptanthus ʻElaineʼ ORTHOPHYTUM March meeting - A brief overview of the Orthophytum genus by DAVE WESTON DISTRIBUTION of orthophytum taxa in Brazil
______2 taxa
______approx 26 taxa ______approx 21 taxa
______approx 11 taxa
Ortho. ‘Starlights’ terminal offsets. ! HABITAT AND ECOLOGY Orthophytum are terrestrial and predominantly rupicolous (growing on or amongst rocks), commonly they are found on the quartzite and sandstone outcrops of inselbergs and Campos Rupestres (a shrubby vegetation formation of rocky montane savannah). Many species are heliophiles, (growing in full sun) and often at high altitudes. As Orthophytum are found in harsh stony habitats one might assume that they have characteristics in common with more epiphytic Bromeliad genera such as Aechmea and Neoregelia however Orthophytum have a well developed fibrous root system and are essentially obligate terrestrials taking up most of their nutrients and water from the soil substrate. In habitat these species tend to establish themselves in rock crevasses' where their roots can access the humus and moisture which is directed into these repositories from off the surrounding rocks. Orthophytum are often found growing in association with other bromeliads, orchids, bryophytes and lichens on exposed rocky outcrops where their roots can take advantage of the moisture and nutrient resource within the stabilised layer of peat and humus which accumulates over time. ! ORTHOPHYTUM MORPHOLOGY Orthophytum are particularly variable with growth form, generally the foliage tends to be more succulent than most other bromeliad genera, prominent spines along the margins of the leaves are a characteristic feature. There is considerable variation even within species, such as Ortho. disjunctum which has forms with a dense cover of white trichomes ranging through to grabrous forms with smooth glossy foliage which can vary from a reddish colour to a dark green. Populations can have uniform leaf colour or in some regions a population may have plants side by side with a varied colour gradient. 4 The genera Orthophytum is divided arbitrarily into two main complexes. These two complexes are determined on the basis of inflorescence structure - (A) The sessile inflorescence complex & (B) The scapose infloresence complex (A) The sessile (stemless) inflorescence includes species such as Orthophytum burle-marxii & Orthophytum heleniceae
The principal characteristic of the sessile infloresence group is that these species produce their flowers in the centre of the leaf rosette similar to that of Neoregelia, however unlike Neoregelia the foliage does form a tank. The exception here are the caulescent species of the “subcomplex vagans” such as O. vagans and O. zanonii. These species are characterized by long foliated stems and produce their flowers in the axis of the terminal leaves. v Caulescent Orthophytum vagans (variegated)
(B) The Scapose (stem) Inflorescence Scapose Orthophytum gurkenii Within this complex is the “sub-complex disjunctum” which form a distinct rosette of leaves prior to development of the inflorescense scape. This includes species like Orthophytums disjunctum, glabrum, rubrum, gurkenii and in comparison, the relatively dwarf species with short scape inflorescences as in Ortho. saxicola. To add further complication under the scapose infloresence complex is another group; “sub-complex leprosum” that do not develop a rosette and the leaves are not clearly distinguishable from the scape bracts as in Orthophytum benzingii.
< Orthophytum benzingii.
> Orthophytum ‘Warren Loose’ offsets developing on the floral bracts.
5 ! REPRODUCTION and PROPAGATION Seed. All orthophytum species are capable of producing viable seed. However unless the grower is seeking a new form or variation there is little advantage in using seed as the resulting plants can be quite variable and slow to produce. Vegetative propagation. All orthophytum will reproduce vegetatively either by offsets produced basally or on stolons. In the case of some of the scapose complex by offsets produced at the terminal point of the individual flower flower spikes on the scape. ! CULTIVATION REQUIREMENTS Orthophytum are well suited to either container or garden cultivation. They require bright light and good air circulation. Some can tolerate full sun exposure given adequate depth of soil and moisture. Soil media should be well drained but rich in organic matter. !! PESTS and DISORDERS Orthophytum have very few pest issues, the main one being Mealy Bug. Root rot may occur with soil media that is not free draining. Leaf rot can occur when water stays on the leaf surface for an extended period. Avoid watering in the evening and provide good air circulation. ! GARDEN and LANDSCAPE The sessile complex of orthophytum are best suited as container plants as they are often slow to reproduce and can become lost in a garden situation. The scapeose complex are well suited to garden and landscape applications as they will establish quickly and often naturalise in the garden. These also make great potted plant specimens as they go through their various growth stages. ###############################################
Member Showcase - Karen Cross by Moyneen Karen's starting point was more than 13 years ago, around '98 or '99. She was moving to a new house with well established palms trees, and found the ground quite dense with roots and started looking for solutions. She noticed a plant tied to a palm, made inquiries and as they say ‘the rest is history’. Karen's plant collecting continued, a shade house was built, eventually she found she was running out of room, quite an achievement when you find out she lives on a double block ! Some highlights of this time include assisting with plant judging at meetings, displaying plants (and winning awards) at the Cairns Show and opening her garden to club members and also members of the 18th. World Bromeliad Conference in 2008. For events such as this Karen rallies her whole family to help with the huge task. In recent times she finds herself time poor with her job and new grandchild being a focus for her. Karen admits she has let her obsession get away from her, she feels she needs to move some plants on to allow her to focus more on a treasured few.