马克·科伦贝尔与法国布列塔尼杜鹃花学会
马克·科伦贝尔（Marc Colombel）是法国布列塔尼地区长期从事杜鹃花属植物研究、繁育与科普的学者，1993 年在布列塔尼创立了法国布雷顿杜鹃花学会 Société Bretonne du Rhododendron（SBR），并担任首任会长共 14 年。SBR 是法国本土最早专注于杜鹃花属的学术性团体之一，学会的成立初衷是把杜鹃花属植物在法国西北部温和海洋性气候下的栽培经验、育种记录与植物学知识系统汇总，供英语、法语世界的爱好者查阅。Marc Colombel 的个人网站 rhodophiles.com 与 SBR 学会站点 rhododendron.fr 一同构成本主题最重要的法语资源。
1000 种与 25500 杂交种的三层图鉴库
网站以「对初学者友好」为编辑原则，收录六大主题词条：Rhododendron 的词源（希腊文 rhodos「玫瑰」＋ dendron「树」，由卡尔·冯·林奈正式命名）、属内约 1000 个野生种的基本档案、估计超过 25500 个杂交种的亲本与育种者信息、栽培相关的实用指南（光照、土壤酸碱度、修剪、移植）、病虫害识别（Phytophthora 疫霉根腐病、沫蝉、叶蝉、蚜虫等）、以及播种、扦插、嫁接、压条等四种无性繁殖方法。Marc Colombel 在网站上自述：「我谦卑地请求所有因我无知或错误建议而死去的杜鹃花原谅，愿这个网站能帮助初学者避免重蹈覆辙」，这一段话也奠定了资源的整理基调。
四十年学术写作与国际杜鹃花大会演讲
Marc Colombel 自 1980 年代起持续在法国杜鹃花期刊及国际上发表相关文章，2008 年获美国杜鹃花协会 American Rhododendron Society 银质奖章，2024 年再获 ARS 金质奖章。他受邀在美国杜鹃花协会 ARS 多个年会担任讲者：2010 年德国不来梅国际杜鹃花研讨会、2015 年加拿大悉尼（BC）大会、2017 年美国尤里卡大会、2019 年加拿大帕克斯维尔大会、2022 年温哥华与帕克斯维尔双场大会。2014 年他还在法国 Josselin 城堡内主持建立了多倍体杜鹃花保育中心，专责欧洲多倍体杜鹃花的苗圃保育与公开展示工作。
友情链接网络与每周园艺影像
网站集结了一份欧美主要杜鹃花相关资源链接清单：英国 Bodnant Garden、Trewithen，德国 Bremen Park、瑞典 Sofiero 城堡园林、澳大利亚 Emu Valley、美国 Mendocino 与 Meerkerk、新西兰 Pukeiti、英国皇家植物园 R.S.F. 等大型杜鹃花专类园，以及 Don Hyatt 美国杜鹃花、Steve Henning 的 Rhododendron & Azalea Pages、Jim Barlup 育种图谱、Vireya 热带杜鹃专题（英、美、新西兰三站）等个人站点。Marc Colombel 还在首页每周更新一张杜鹃花摄影作品，附简短观察笔记，题材涵盖百年杜鹃花 Rhododendron Broughtonii、Broughtonii 砧木嫁接、不同杂交种的花期对比等。SBR 学会在 sbr.bzh 上另设多倍体试验数据库，公开 4n/6n/8n 不同倍性杜鹃花的田间表现观测记录。
Marc Colombel and the Société Bretonne du Rhododendron
Marc Colombel is a French horticulturist and rhododendron scholar based in Brittany. He founded the Société Bretonne du Rhododendron (SBR) in 1993 and served as its first president for fourteen years. SBR is one of the earliest French organizations dedicated to the genus Rhododendron, with a remit to gather cultivation experience, breeding records, and botanical knowledge from the mild oceanic climate of northwestern France for a French- and English-reading audience. His personal site rhodophiles.com and the SBR site at rhododendron.fr together form the principal French-language resource on the genus.
The Three-Layer Library of One Thousand Species and Twenty-Five Thousand Hybrids
The site is organized for beginners. Six core themes are covered: the etymology of the genus name (Greek rhodos “rose” plus dendron “tree”, formally named by Carl von Linné), reference entries for roughly one thousand wild species, parentage and hybridizer information on an estimated twenty-five thousand hybrids, cultivation notes (light, soil pH, pruning, transplanting), pest and disease identification (Phytophthora root rot, spittlebugs, leafhoppers, aphids), and the four standard propagation methods (sowing, cuttings, grafting, layering). Marc Colombel opens the home page with a verbatim request of forgiveness: “I humbly ask forgiveness of all the rhododendrons I have caused to die through ignorance or bad advice. May this site help beginners, as we all are one day, to avoid making the same mistakes.”
Four Decades of Writing and International Convention Speaking
Marc Colombel has published continuously in French and international rhododendron journals since the 1980s. He received the American Rhododendron Society Silver Medal in 2008 and the ARS Gold Medal in 2024. He has been a featured speaker at major international gatherings: the 2010 Bremen International Rhododendron Symposium in Germany, the 2015 ARS Convention in Sydney, BC, the 2017 ARS Convention in Eureka, California, the 2019 ARS Convention in Parksville, BC, and the 2022 ARS Conventions in Vancouver and Parksville. In 2014 he established a polyploid rhododendron conservatory at the Château de Josselin in Brittany, dedicated to the field maintenance and public display of European tetraploid, hexaploid, and octoploid rhododendrons.
Links Network and the Weekly Garden Photograph
The site maintains a curated links list of major rhododendron collections and personal web resources: Bodnant Garden and Trewithen in the United Kingdom, Bremen Park in Germany, Sofiero in Sweden, Emu Valley in Australia, Mendocino Botanical Gardens and Meerkerk Gardens in the United States, Pukeiti in New Zealand, and the Rhododendron Species Foundation; alongside Don Hyatt’s American azalea site, Steve Henning’s Rhododendron & Azalea Pages (2012 Silver Medal), the Jim Barlup hybridizer archive, and three Vireya tropical rhododendron sites (UK, USA, New Zealand). Marc Colombel publishes a weekly photograph on the home page with short observation notes, ranging from a hundred-year-old Rhododendron Broughtonii to grafted understock comparisons and seasonal bloom charts. SBR maintains a separate polyploid trial database at sbr.bzh documenting the field performance of 4n, 6n, and 8n rhododendron selections.
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