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4Th Clematis Supplement The International Clematis Register and Checklist 2002 Fourth Supplement © 2012 The Royal Horticultural Society 80 Vincent Square, London SW1P 2PE, United Kingdom www.rhs.org.uk International Clematis Registrar: Duncan Donald All rights reserved. No part of this book may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright holder. isbn 9781907057342 Printed and bound in the UK by Formara Limited, Southend-on-Sea Website version amended 28 April 2014 Cover: Clematis ‘Columella’ Atragene Group drawing by Victoria Matthews The International Clematis Register and Checklist 2002 Fourth Supplement Introduction, Registrar’s foreword, Acknowledgements page 1 Notes on the entries page 2 Horticultural classification, Small-flowered Division page 2 Horticultural classification, Large-flowered Division page 3 Parentage, Roles, Colour, Nomenclatural Standard page 4 Register and Checklist Cultivar Group epithets: original definitions page 4 Cultivar epithets detected 2008–2011 page 10 Raiser, registrants and others page 62 Introduction Registrar’s foreword The cultivar epithets listed in thisSupplement For unavoidable reasons, the schedule has once again were registered between 1 December 2008 and slipped from the former policy of trying to ensure 31 December 2011; registered cultivars have been that new Clematis Supplements are published entered in boldface. Other clematis names – e.g. biennially – but I hope readers will feel nevertheless unregistered epithets, synonyms, mis-spellings that it has been worth the wait. – are also published, as part of the Checklist One advantage of the delay is that I can now function of this publication. draw attention to the fact that an article I wrote on Registration is a voluntary procedure and does the definition of Cultivar Groups has recently been not confer any legal protection on the plant. However, published in Clematis International 2012, pp.19–25. as the International Cultivar Registration Authority I set out there why I feel that none of the Group for Clematis, the Royal Horticultural Society urges all epithets most commonly in current use is soundly hybridizers, raisers and other introducers to register based according to the International Code of their cultivar or Group names to reduce the potential Nomenclature for Cultivated Plants, and how a confusion caused by new epithets which involve the working group has now been set up by the same or very similar epithets to existing names. International Clematis Society to consider how best Epithets which conform to the Articles (and, ideally, to merge or replace the conflicting classifications the Recommendations) of the latest edition of the currently based on them. International Code of Nomenclature for Cultivated For this Supplement, I have retained below the Plants (currently ed. 8, 2009) are acceptable for set of Group definitions first published inThe registration. Registration is free of charge and should International Clematis Register and Checklist (2002) take place before a plant is released or described in a and used, with slight modification, for subsequent catalogue. A certificate can be issued on request. Supplements: although nomenclaturally flawed, I Registration forms are available as a download believe these definitions should continue to serve as a from the Society’s website, www.rhs.org.uk, or from: yardstick until a new system has been agreed and Duncan Donald, International Registrar for Clematis, implemented. However, I am also setting out in a c/o RHS Garden Wisley, Woking, Surrey GU23 6QB, special section below the original definition and UK; e-mail [email protected]; tel. +44 (0)1445 publication details for each of these Group epithets, 781717. to provide a baseline to underpin my arguments that The Registrar welcomes further information to their current uses are flawed. augment existing records. My hope is that the Fifth Supplement will contain a checklist of as many as possible Group definitions subsequently established, noting whether those are novel or if they enhance or contradict the original definitions – but I felt it important, for clarity, not to do this until the baseline had first been presented. Acknowledgements I should like to acknowledge the help of very many people whose contributions have helped to make this Supplement possible, particularly those who have volunteered registrations in timely fashion. International Clematis Register & Checklist 2002 4th Supplement 1 stems erect or climbing. Flowers produced on current Notes on the entries year’s growth in summer. Flowers usually single, erect The format of entries is similar to the lay-out adopted or outward-facing, flat, 2–4 cm across, usually fragrant for The International Clematis Register and Checklist and usually in large panicles. Sepals 4–6, white, (2002). The following notes apply to selected sections: cream, blue or purple. Leaves rather leathery, usually Horticultural classification pinnate, rarely simple or ternate. This follows the classification adopted by V. Matthews Forsteri Group in The International Clematis Register and Checklist Cultivars belonging to, or derived from, species (2002) [except that ispahanica, now considered to classified in SectionNovae -zeelandiae M. Johnson have been included in error, has been omitted from (native to Australia and New Zealand) such as the list of parent species in Tangutica Group]. australis, foetida, forsteri, marata, marmoraria, paniculata, petriei. Small-flowered Division Evergreen woody shrubs or climbers. Flowers Flowers (1.5–)2–12(–18) cm across produced on previous and current year’s growth, from late winter to spring. Flowers unisexual with male and Armandii Group female on separate plants, single, flat to bell-shaped, Cultivars belonging to, or derived from, species 2–9 cm across. Sepals 4–8, white to greenish-yellow. classified in SubsectionMeyenianae (Tamura) Leaves 1–2-ternate. M. Johnson, mainly armandii. Evergreen woody climbers. Flowers produced in Heracleifolia Group leaf-axils of previous year’s growth in late winter and Cultivars with at least one parent belonging to, spring. Flowers single, bowl-shaped or more or less or derived from, species classified in Subgenus flat, 4–7(–10) cm across. Sepals 4–6, white or pink. Tubulosa (Decne) Grey-Wilson, such as heracleifolia, Leaves rather leathery, ternate or sometimes pinnate. stans, tubulosa. Woody-based plants with erect or climbing stems Atragene Group that may or may not die down to the base in winter. Cultivars belonging to, or derived from, species classi- Flowers produced on current year’s growth in summer fied in Subgenus Atragene (L.) Torrey & A. Gray, such and early autumn. Flowers single, tubular, bell-shaped as alpina, chiisanensis, fauriei, koreana, macropetala, or with the sepals spreading, hermaphrodite, or ochotensis, sibirica, turkestanica. The former Alpina unisexual with male and female on the same or on Group and Macropetala Group are included here. separate plants, (1.5–)2–5 cm across. Sepals 4–6, Historically, the Alpina Group was used for single- white, creamy yellow, red-purple, violet-blue or blue. flowered cultivars, and double-flowered cultivars were Leaves ternate or pinnate with simple leaflets. assigned to the Macropetala Group. Deciduous woody climbers. Flowers mainly Integrifolia Group produced in leaf-axils of previous year’s growth in Cultivars belonging to, or derived mainly spring, and sometimes solitary at the ends of shoots of from, integrifolia. current year’s growth later in the season. Flowers Includes the Diversifolia Group (which covered single (lacking staminodes or with up to 4(–5) C. × diversifolia (C. integrifolia × C. viticella) and its staminodes) or double (with more than 6 staminodes), cultivars). bell-shaped, nodding, (2–)4–10(–12) cm across. Deciduous woody-based subshrubs with Sepals 4, white, pale yellow, or shades of pink, non-climbing or semi-climbing herbaceous stems. red-purple, purple, violet-blue or blue. Outer stamens Flowers produced on current year’s growth in summer changed into petaloid staminodes, usually shorter and early autumn. Flowers single, usually bell-shaped, than the sepals. Leaves 1–2-ternate. sometimes more or less flat, 4–9(–14) cm across, usually nodding. Sepals 4(–7), white, pink, red- Cirrhosa Group purple, purple, violet-blue or blue. Leaves simple or Cultivars belonging to, or derived mainly ternate, more rarely pinnate. from, cirrhosa. Evergreen woody climbers. Flowers produced on Montana Group previous year’s growth from late autumn to early Cultivars belonging to, or derived from, species spring. Flowers single, bell-shaped to bowl-shaped, classified in SectionMontanae (Schneider) drooping, (2–)5–8(–10) cm across. Sepals 4(–5), Grey-Wilson such as chrysocoma, montana, spooneri. cream, or cream speckled or suffused with red or Deciduous woody climbers. Flowers mainly purple. Leaves simple or 1–2-ternate. produced in leaf-axils of previous year’s growth in spring and sometimes at base of current year’s shoots later in Flammula Group the season. Flowers usually single, sometimes semi- Cultivars with at least one parent belonging to, or double or double, erect, 3–10(–14) cm across. Sepals derived from, species classified in SectionFlammula of single flowers 4(–6), white, pink to dark red- DC. (excluding Subsection Meyenianae (Tamura) purple, sometimes pale yellow, more or less spreading. M. Johnson), such
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