Roger David Spencer (born 6 October 1945) is an Australia horticultural botanist who was born at Alfreton, Derbyshire. He has an honours degree in botany from the University College of Wales, Aberystwyth, a master's degree and doctorate from the University of Melbourne (in phycology) and a technical certificate in gardening and turf maintenance from Oakleigh Technical College, Melbourne. He is currently horticultural botanist at the Royal Botanic Gardens Melbourne where he works in the Plant Identification Service, contributing locally and internationally to the study of cultivated plant taxonomy. [1] [2]
He has written popular articles on horticultural taxonomy for various journals and newspapers and has a regular column on plant names for Australian Horticulture. He has also written books on topics including landscape conservation, elms and silver foliage plants. Between 1995 and 2005 he compiled the five-volume Horticultural Flora of South-eastern Australia. He is the co-author of the book Sustainable Gardens and an international third edition of the booklet Plant Names. [3] He has contributed to the Australian native floras of Victoria, New South Wales and South Australia, and was for several years chairman of the Australian Cultivar Registration Authority. [4]
A botanical garden or botanic garden is a garden with a documented collection of living plants for the purpose of scientific research, conservation, display, and education. It is their mandate as a botanical garden that plants are labelled with their botanical names. It may contain specialist plant collections such as cacti and other succulent plants, herb gardens, plants from particular parts of the world, and so on; there may be glasshouses or shadehouses, again with special collections such as tropical plants, alpine plants, or other exotic plants that are not native to that region.
The Australian National Botanic Gardens (ANBG) is a heritage-listed botanical garden located in Acton, Canberra, in the Australian Capital Territory, Australia. Established in 1949, the Gardens is administered by the Australian Government's Department of Agriculture, Water and the Environment. The botanic gardens was added to the Commonwealth Heritage List on 22 June 2004.
Callistemon is a genus of shrubs in the family Myrtaceae, first described as a genus in 1814. The entire genus is endemic to Australia but widely cultivated in many other regions and naturalised in scattered locations. Their status as a separate taxon is in doubt, some authorities accepting that the difference between callistemons and melaleucas is not sufficient for them to be grouped in a separate genus.
Joseph Henry Maiden was a botanist who made a major contribution to knowledge of the Australian flora, especially the genus Eucalyptus. This botanist is denoted by the author abbreviation Maiden when citing a botanical name.
Robert Sweet was an English botanist, horticulturist and ornithologist.
A cultigen, or cultivated plant, is a plant that has been deliberately altered or selected by humans, by means of genetic modification, graft-chimaeras, plant breeding, or wild or cultivated plant selection. These plants have commercial value in horticulture, agriculture and forestry. Plants meeting this definition remain cultigens whether they are naturalised, deliberately planted in the wild, or grown in cultivation.
Melaleuca viminalis, commonly known as weeping bottlebrush or creek bottlebrush, is a plant in the myrtle family Myrtaceae, and is endemic to New South Wales, Queensland and Western Australia. It is a multi-trunked, large shrub or tree with hard bark, often pendulous foliage and large numbers of bright red bottlebrush flowers in spring and summer. It is possibly the most commonly cultivated melaleuca in gardens and its cultivars are often grown in many countries.
A horticultural flora, also known as a garden flora, is a plant identification aid structured in the same way as a native plants flora. It serves the same purpose: to facilitate plant identification; however, it only includes plants that are under cultivation as ornamental plants growing within the prescribed climate zone or region. Traditionally published in book form, often in several volumes, such floras are increasingly likely to be produced as websites or CD ROMs.
Cultivated plant taxonomy is the study of the theory and practice of the science that identifies, describes, classifies, and names cultigens—those plants whose origin or selection is primarily due to intentional human activity. Cultivated plant taxonomists do, however, work with all kinds of plants in cultivation.
Melaleuca phoenicea, commonly known as scarlet bottlebrush or lesser bottlebrush, is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. The Noongar peoples know the plant as tubada. It is a shrub with thick, blue-green leaves and spikes of scarlet bottlebrush flowers in spring and summer.
Melaleuca pityoides, commonly known as alpine bottlebrush, is a plant in the family Myrtaceae, and is endemic to the higher areas of south eastern Australia. Some Australian state herbaria continue to use the name Callistemon pityoides. It is a shrub, often occurring in dense thickets, with hard bark, silvery-grey new growth, almost cylindrical leaves and spikes of flowers that are usually a shade of yellow.
Melaleuca paludicola, commonly known as river bottlebrush, is a plant in the myrtle family Myrtaceae, and is endemic to eastern Australia. It is a shrub or small tree with flexible, often drooping branches, pinkish new growth and spikes of cream, pale yellow, or sometimes pink flowers in summer.
Melaleuca subulata is a plant in the myrtle family Myrtaceae, and is endemic to south eastern Australia.. It is a small, spreading shrub with hard bark, dense foliage, cylindrical leaves and spikes of dark crimson flowers in summer.
Melaleuca recurva, commonly known as Tinaroo bottlebrush, is a plant in the myrtle family, Myrtaceae and is endemic to higher areas of far northern Queensland in Australia.. It is a shrub with spikes of red flowers tipped with yellow in most months of the year and which often has leaves with their edges curled under.
Adenanthos × pamela is a naturally occurring hybrid of A. detmoldii and A. obovatus in Western Australia.
Muelleria is a peer-reviewed scientific journal on botany published by the Royal Botanic Gardens Melbourne. It focuses on topics relating to plants, algae, and fungi in the southern hemisphere and Australia in particular. The journal was named in honour of Victorian Government botanist Ferdinand von Mueller. Muelleria commenced publication in 1955 with funding from the Maud Gibson Trust. The trust was initiated in 1945 following the donation of £20,000 by Maud Gibson, a daughter of William Gibson, founder of the Foy & Gibson department store chain.
Melaleuca citrina, the common red bottlebrush, crimson bottlebrush, or lemon bottlebrush, is a plant in the myrtle family Myrtaceae, and is endemic to eastern Australia. Some Australian state herbaria continue to use the name Callistemon citrinus. It is a hardy and adaptable species, common in its natural habitat. It is widely cultivated, not only in Australia. It was one of the first Australian plants to be grown outside the country, having been taken to England in 1770 by Joseph Banks. Its showy red flower spikes, present over most of the year in an ideal situation, account for its popularity.
Melaleuca pallida, commonly known as lemon bottlebrush, is a plant in the myrtle family, Myrtaceae and is endemic to eastern Australia. It is an upright shrub with thin, spreading branches, silvery new growth and pale yellow, sometimes pinkish bottlebrush flowers.
Melaleuca pearsonii, commonly known as Blackdown bottlebrush, is a plant in the myrtle family, Myrtaceae and is endemic to Queensland in Australia. It is a small, spreading but compact shrub with hard bark, soft foliage and profuse spikes of bottlebrush flowers in spring and summer.
Donald Bruce Foreman was an Australian botanist who worked on the Monimiaceae and Proteaceae of Australia. He also helped with the editing of selected Flora of Victoria and Flora of Australia Volumes.