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Cultivating Co‑Operation HORTAX Cultivated Plant Taxonomy Cultivated Plant Taxonomy NEWS Issue 1 ■ July 2013 Cultivating co-operation Cultivated plant taxonomy is a diverse discipline that, to a greater or lesser degree, affects aspects of plant registration, crop testing, collection curation, academic study, publishing, field botany, retail, legislative enforcement and gardening. Its influence is pervasive in the landscape we inhabit, the materials we use and the food we eat. The wide-ranging impact of cultivated plant taxonomy should be one of its great strengths, but a failure of a mechanism for facilitating co- Above, clockwise from top workers in the field to maintain lines of ordinated communication and activity left. Citrus × aurantium, a communication and look for areas of still wanting. This, the first edition of hybrid whose selections common ground and opportunities to Cultivated Plant Taxonomy News (CPT include ‘Ugli’, ‘Seville’, share resources has left the discipline News), is an attempt to meet that need. ‘Valencia’, and ‘Navel’, disorganised, little understood and from an 1822 aquatint seriously undervalued. CPT News is provided by Hortax by Angiolini (RHS, (The Horticultural Taxonomy Group, Lindley Library); Brassia The Sixth International Symposium www.hortax.org.uk) which this year Orange Delight gx, one on the Taxonomy of Cultivated Plants, celebrates its 25th birthday. The Group of more than 150,000 to be hosted in Beijing this July, offers previously produced a newsletter, grexes in the RHS Orchid a wonderful opportunity to discuss Hortax News, and, particularly through Register (RHS / Carol ideas, collaborate and take stock its website and online forum, seeks Sheppard); Magnolia of progress, but it is vital that the to provide an educational resource × loebneri ‘Merrill’, a acknowledgement of common intent and further the taxonomic study cultivar from Arnold and momentum generated by such of cultivated plants. Over the years Arboretum, Massachusetts a gathering is not permitted to fade Hortax has remained constantly (RHS / Carol Sheppard). after the Closing Address. active and committed to its purpose and central message: that botanically, It was from such a laudable ambition culturally, ecologically and legally, as this that the International cultivated plant taxonomy matters. Association for Cultivated Plant Taxonomy was born six years ago ■ If you would like to submit at the Fifth International Symposium, material for inclusion in the next but the organisation stagnated CPT News, contact James Armitage and faltered, leaving the need for ([email protected]). HORTAX HORTICULTURAL TAXONOMY GROUP CPT News ■ nomenclature, has now been published and, along with the six previous News in brief volumes, is available online (www. rhs.org.uk/Plants/RHS-Publications/ Journals/Hanburyana). Volume Seven Draft EU Regulation contains four papers proposing amendments to the International Code on Plant Propagating of Nomenclature for Cultivated Plants Material Agreed as well as other articles on a range of taxonomic subjects. On 6 May 2013 a draft Regulation was HanburyanaA serial for horticultural taxonomy and nomenclature adopted by the Commission reviewing EU legislation on the marketing of Daffodils on the seed and plant propagating material (SPPM). This Regulation has been Agenda at Monocot drafted with the intention of granting Conference more responsibility and flexibility to businesses, to streamline administrative Monocots V, the 5th International procedures, enhance biodiversity RHS, LINDLEY LIBRARY Conference on Comparative Biology VOLUME SEVEN JULY 2013 and steer plant breeding towards of Monocotyledons (New York Botanic environmental aims. It has far-reaching Garden, 8–12 July 2013), will host a consequences for those dealing with Above. Hanburyana special Symposium on the systematics cultivated plants in the European Union. Volume 7, which has just and population biology of Narcissus. The draft Regulation can be viewed been published by the RHS online (http://ec.europa.eu/dgs/health_ Science Dept, includes consumer/pressroom/docs/proposal_ several proposals to New CPVO Guidelines aphp_en.pdf) and further information amend the ICNCP as well can be found here (http://ec.europa.eu/ as papers on the Korean with Explanatory food/plant/plant_propagation_material/ willow-leaved spicebush, Notes Produced review_eu_rules/index_en.htm). Magnolia × pruhoniciana, and a new hybrid in The guidelines and notes issued to Cytisus. Below. Geranium help those applying for European Hanburyana Vol. 7 ROZANNE (‘Gerwat’), a 2000 Plant Variety Rights to formulate a introduction protected suitable name have been extended The latest volume of Hanburyana, the by Plant Breeders’ rights. (www.cpvo.europa.eu/documents/lex/ journal of horticultural taxonomy and Photo. RHS / Tim Sandall. guidelines/VD_Guidelines_explanatory_ note_EN.pdf). Denominations which misleadingly suggest a relationship to a pre-existing cultivar are considered unacceptable and other changes relate to the number of letters’ difference required in order for denominations to be judged distinct. New RHS Head of Science Appointed Dr Alistair Griffiths has been appointed the new Head of Science at the Royal Horticultural Society. Alistair’s } 2 ■ July 2013 Recent Publications in Cultivated Plant Taxonomy The last year has seen the release of a wealth of new titles relevant to the taxonomy of cultivated plants. Below is a selection of some of the most significant. Ashburner, K. & McAllister, H. (2012). The Genus Betula: a Taxonomic Revision. Kew Publishing: London. Auders, A. G. & Spicer, D. P. (2012). The RHS Encyclopedia of Conifers (2 vols). Kingsblue Publishing Ltd: Cyprus. | previous role was as Above. KAVB have Horticultural Science Curator published a new list Cribb, P. & Frosch, W. (2012). at the Eden Project in Cornwall of Galanthus cultivar Hardy Cypripedium: Species, and his PhD was on the role names (see panel, right). Hybrids and Cultivation. Kew of ex situ management in the Clockwise from top left. Publishing: London. conservation of the critically G. nivalis f. pleniflorus endangered Seychelles endemic ‘Flore Pleno’, G. ‘Cornwood Hay, A., Gottschalk, M. & Holguin, Impatiens gordonii. He has Gem’, G. ‘Jacquenetta’, A. (2012). Huanduj: Brugmansia. stated a strong commitment to G. ‘Primrose Warburg’. Kew Publishing: London. horticultural taxonomy. Photos. Tim Sandall. Mathew, B. (ed.) (2013). Genus Cyclamen: Science, Cultivation, Art Tributes Paid Following Death of and Culture. Kew Publishing and Dr James Cullen The Cyclamen Society: London. Principal Editor of The European Pigott, D. (2012). Lime-Trees and Garden Flora James Cullen passed Basswoods. Cambridge University away on 11 May 2013 aged 77. James Press: Cambridge. was Assistant Regius Keeper at the Royal Botanic Garden, Edinburgh Riffle, R. L., Craft, P. & Zona, S. from 1972 to 1989 where the focus (2012). Encyclopedia of Cultivated of his work was on Rhododendron Palms (2nd ed.). Timber Press: classification. He was author of The Portland, Oregon. Orchid Book (1992), Handbook of North European Garden Plants (2001) Van Dijk, H. & Snoeijer, W. (2013). and Hardy Rhododendron Species Galanthus: a list of cultivar names. (2005) and his contribution to the KAVB Royal General Bulbgrowers’ advancement of cultivated plant Association: Netherlands. taxonomy was immense. (Photo: CUBG.) HORTAX 3 HORTICULTURAL TAXONOMY GROUP CPT News ■ Plant Heritage Current projects Plant Heritage’s focus in its 35th year is on two major projects: the Threatened Plants Project (TPP), which is four years old this year, and the revision of requirements for holding National Plant Collections agreed last year and to be implemented during 2013/14. Formerly the Threatened Plants NCCPG, Plant Project Heritage is The TPP provides a means of based in the UK evaluating the rarity and conservation Above. Hamamelis × intermedia ‘Harlow and aims to be value of cultivars and has now Carr’. Photo. RHS / Carol Sheppard. Right. recognised as the assessed the conservation status of Nepenthes ‘Princess’. Photo. RHS / Carol foremost charity cultivars in 240 genera. More than Sheppard. Below. Dahlia ‘Twyning’s dealing with the 6000 threatened cultivars have been Smartie’. Photo. RHS / Tim Sandall. identified to date, half of which are held conservation of in National Plant Collections. cultivated plants. Here, Plant Work is also progressing on integrating aspects of the project into our Conservation collections assessment and recruitment Officer Mercy processes, thus providing a means of Morris provides guiding potential collection holders to an update of the genera, species, or groups of plants most in need of conservation. organisation’s present activities The TPP also allows garden and future curators to assess the value of their aspirations. collections from a conservation perspective. This consists of identifying, from the genera assessed to date, those plants that are most under threat and helps inform decision- making and resource allocation when replanting or planning propagation. New Requirements The requirements for National Plant Collections have remained largely } 4 ■ July 2013 | unchanged since collections were first invited into the scheme in 1981. To allow for a greater degree of flexibility and provide a clear focus on conservation, Plant Heritage will change the way it assesses new collections. In addition to this a new scheme will be introduced, whereby members can conserve single plants or groups of threatened plants (level of threat Above. A nomenclatural determined
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