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Wildflower Society of WA Northern Suburbs Branch

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Wildflower Society of WA Northern Suburbs Branch Wildflower Society of WA Northern Suburbs Branch Newsletter - July 2017 Next Meeting :- July 25 7-30pm, Henderson Environmental Centre, Groat St. North Beach Kirsten Tullis “Fabulous Fungi” Coming Events :- 22 Aug Digby Growns “Chamelaucium Breeding” 26 Sept Kate Brown “Restoring Greater Brixton St Wetlands” 24 October Angela Bowman “Aust. Wildlife Conservancy in WA” 28 November Hazel Dempster “A Visit to Hamelin Station Reserve” Last Meeting’s Guest Speaker Keith Oliver “Kangaroo Paws ” Keith Oliver, pioneer plant breeder and long- time Wildflower Society of WA member, spoke at the June meeting about his pioneer- ing work developing hybrid kangaroo paws, beginning in the 1960s as a hobby and moving into a professional business career in the 1980s. Keith began with an overview of the genus Haemodoraceae, species of which are distributed in North and Central America, Southern Africa, New Guinea and Austra- lia. However, Anigothanzos and Macropi- dia are found only in South Western Aus- tralia. The origin of Haemodoraceae is un- known but thought to be perhaps 20-30 million years ago and Keith believes that kangaroo paws could have evolved from conostylis. Keith’s plant breeding hobby started in the 1960s and transformed into a career in the 1970s when he released the landmark variety ‘Big Red’, still one of the most popular kangaroo paws for landscaping. These were fol- lowed over the years by ‘Yellow Gem’, ‘Gold Velvet’ and ‘Amber Velvet’. Keith attended a 3-day Haemodoraceae Symposium in Victoria last year, looking at kangaroo paws, bloodroots, cotton- heads and more. The Symposium was held at the Royal Botanic Gardens Cran- bourne and Keith had many colourful photos to show of kangaroo paw hybrids, in- cluding some stunning examples of Anigozanthos flavidus in reds and li- lacs, plus a large selection of potted kangaroo paw hybrids which Sympo- sium attendees ‘voted’ on for their fa- vourite plant. His presentation at Cranbourne cen- tred around his work developing hy- brid species. A photo of his front garden about 20 years ago, filled with brilliant kangaroo paws in full bloom, had us enthralled. The first known manipulated hy- brids were by Dr Keith Finlay prior to 1963, with hybridisation of species such as Anigizanthos manglesii with A. humi- lis, and A. manglesii with A. viridis. Ron Garrity was also a pioneer in this work in the early 1960s. Gingin ceme- tery will be familiar to many with its many varieties of kangaroo paws and Keith showed us a natural hybrid of red from red and green which occurs there. He also told us that we could breed our own hybrids by having a number of colours available for bird pollination or even putting some potted specimens into an aviary as an ‘easy way’! Keith used A. flavidus as a parent of his Western Star hybrid series because of its great at- tributes, including disease resistance, lon- gevity and water/summer tolerance. This series of hybrids was exported worldwide and renowned for being disease resistant kangaroo paws. Keith’s work in the early to mid-1960s focussed Northern Suburbs on developing polyploid hybrids and Keith told Free guided nature walks. us he seemed to be the first to work on this. He Each Month explained his process of changing sterile hybrids Run approx 1 hour. to fertile, using a weak colchicine solution. As an Start at 8am. Honorary Research Associate at Murdoch Uni- versity in 1996-98, Keith introduced colchicine treatments. He acknowledged more work under- taken by people such as Bob Dixon, known for 1st Saturday Landsdale conservation of rare colour forms of Macropidia Conservation Park. fuliginosa and Anigazanthos manglesii, and also Meet in Landsdale Rd approx work done by Stephen Hopper in 1973, with 100 metres east of Evandale many hybrid crossings as part of his PhD studies. Rd, Darch. Contact David 9448 9192 2nd Saturday Koondoola Regional Bushland. Meet in Koondoola Ave Opposite Burbridge Ave. Contact David 9448 9192 3rd Saturday Lake Gwelup Reserve. Angus Stewart developed smaller species in the Meet Scout Hall car park 1980s as Southern Aurora hybrids and Adrian near tennis Courts, and Irene Bowden exported Western Star hybrid Huntriss Rd, Gwelup. species worldwide in the 1980s and 1990s, before Contact Christine 94472983 a disastrous fire destroyed their nursery and tis- sue culture stock. But Keith’s parting message to us was the importance of preserving the natural 4th Saturday Star Swamp species we have in the South-West, especially the Bushland iconic red and green kangaroo paw, Anigazanthos Meet at the Henderson manglesii. Centre at the end of Christine Curry Groat St, North Beach. Contact Christine 94472983 5th Saturday Trigg Bushland Meet in the car park between St Mary’s School and Millington Reserve (off Elliot rd) Karrinyup. contact David 9448 9192 FROM THE PRESIDENT – JULY 2017 The Society’s 2017 State Conference and AGM hosted by the Merredin Branch on 24/25 June were both successful and en- joyable. Merredin Branch is to be congratulated for looking after us so well and arranging interesting presentations reflect- ing the local experience for the area. Geoff Corrick was returned as President and Nina McLaren Vice President. There is a good working committee in place but there are still a couple of vacancies to be filled. So, if you feel you would like to make a contribution to the management and governance of the Society you will be most welcome to discuss joining with Geoff or Nina. Branch reports showed the diversity of activity across the Association and whilst numbers are low in some areas there remains strong support in all areas. In my last report I included our Branch report and we are doing well as a branch on all fronts and we are keen to maintain the momentum into next year, so do get involved and help out where you can. Of particular interest is the Branch website developed by Shaun Tenant which is well worth a look. You can find it at http://ns.wsowa.org.au/ I think it is excellent and I offer our thanks to Shaun for all the work he has put into getting it up at al- most no cost to the branch. The website is intended to market the nursery and support the Society Growing Strategy. It will be linked to the Society website and provides information on our plant list, growing hints and activities. It’s a great initiative for the branch and Shaun has designed it so it is compatible with mobile phone formatting which we think is how most people will access it. So have a look and let us know your feedback. In all respects it is business as usual for the months ahead. We are asking all members to consider nominating for our Branch management committee and in particular the position of President. In all respects we are well managed and the President will have a good committee in support. This is an opportunity for new ideas for the years ahead and I do hope some of you will offer your assistance and expertise. The AGM is in November but don’t leave it too long to give it some thought. Richard Curry President President, Geoff Corrick, centre, with Tracy Scott and Mal Harper, after the presentation of their Honorary Life Membership Awards. Mathew Woods and Sybil Speak at the book tables. Photos from the AGM Bronwen Keighery and Linda Fran Kininmonth Mason and Judith Harvey Lee Roberts and Richard Curry Christine Curry and Richard Clark WA Dianella Species That Can Call WA Their Home. I had read the revision of Dianella species in the Eastern States of Australia, where many new species were named or names changed, and noted that some of those species were being distributed into WA throughout garden centres, grown and mass planted in our local landscapes. Unfortunately, some are also becoming weedy. I decided it was time to find out where our WA species were and why they weren’t the ones being grown. Dianella side shoots During the last few years, as I have visited numerous taken from mother country areas, I have photographed many Dianella’s and plants noted their growth, form and foliage colour and particu- larly the length of the flowering stems and the colour of the pedicellate flowers. During this time I have collected side shoots off them and successfully grown them as mother plants at the WSWA North Suburbs branch volun- teer nursery at Landsdale Farm School. There are only two species, with two variations, recorded in Florabase in the south west region, with one further species in the northern tip on WA. The variations I have seen in all their aspects lead me to believe there may be a couple of others lurking. I also think that these differences have caused great difficulty in their correct identification. I will continue further to pursue these differences through the mother plant growing programme in the Dianella bed at the Farm school. The species and their different forms that are successfully growing are described below. The Dianella brevicaulis grown has some noticeably different forms. One form has dark green foliage which is thin, stiff and distinctly pointed. It is Hazel showing Dianella brevicaulis floral upright, to around 40cm tall, stem length forming clumping colonies from underground rhizome-like stems. Another very similar form has more weeping foliage. These forms were collected from the outer wheatbelt. Another form is a far more robust plant with wider, lusher, dark green foliage, forming large clumps. All forms have blue flowers on flower spikes which do not exceed the foliage. These are seen in the southern wheatbelt areas.
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