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Plea to Cactus Explorers 44 Society Page 56 Travel with the Cactus Expert (1) 45 Retail Therapy 57 a Day in the Quebrada De Tastil 48 Echinomastus Johnsonii 52 TheCactus Explorer The first free on-line Journal for Cactus and Succulent Enthusiasts Succulents of Isla Cedros Sclerocactus polyancistrus Number 2 Echeveria laui in habitat ISSN 2048-0482 Echinomastus johnsonii November 2011 Matucana myriacantha The Cactus Explorer ISSN 2048-0482 Number 2 November 2011 In thIs EdItIon Regular Features Articles Introduction 3 Succulents of Isla de Cedros 27 News and Events 4 My Trip with Arthur 2006 33 Recent New Descriptions 11 Echeveria laui is in Care 36 In the Glasshouse 17 Matucana myriacantha high above Journal Roundup 22 the Rio Crisnejas 40 The Love of Books 24 Plea to Cactus Explorers 44 Society Page 56 Travel with the Cactus Expert (1) 45 Retail Therapy 57 A Day in the Quebrada de Tastil 48 Echinomastus johnsonii 52 The No.1 source for on-line information about cacti and succulents is http://www.cactus-mall.com Cover Picture by Paul Klaassen Dudleya pachyphytum in habitat on Isla de Cedros, Baja California Sur, Mexico. See page 27 Invitation to Contributors Please consider the Cactus Explorer as the place to publish your articles. We welcome contributions for any of the regular features or a longer article with pictures on any aspect of cacti and succulents. The editorial team is happy to help you with preparing your work. Please send your submissions as plain text in a ‘Word’ document together with jpeg or tiff images with the maximun resolution available. A major advantage of this on-line format is the possibility of publishing contributions quickly and any issue is never full! We aim to publish your article within 3 months and the copy deadline is just a few days before the publication date which is planned for the 10th of February, May, August and November. Please note that advertising and links are free and provided for the benefit of readers. Adverts are placed at the discretion of the editorial team, based on their relevance to the readership. Publisher: The Cactus Explorers Club, Briars Bank, Fosters Bridge, Ketton, Stamford, PE9 3BF U.K. The Cactus Explorer is available as a PDF file downloadable from www.cactusexplorers.org.uk The Editorial Team: Organiser:Graham Charles [email protected] Scientific Adviser: Roy Mottram [email protected] Paul Hoxey [email protected] Zlatko Janeba [email protected] Martin Lowry [email protected] Opinions expressed in the articles are those of the authors, and not necessarily those of the editorial team. Issues of the Cactus Explorer may be freely distributed whilst the copyright of the text and pictures remains with the authors. Permission is required for any use of this material other than reading, printing or storage. 2 Number 2 November 2011 ISSN 2048-0482 The Cactus Explorer IntroduCtIon What a welcome! The authority to publish nomenclatural changes in our publication is not to be taken I have been extremely encouraged by the lightly. The Cactaceae is already burdened response to the first issue of the Cactus with a vast number of superfluous names, and Explorer . Since its publication, I have names at a higher rank than the differences received hundreds of emails from all around exhibited by the proposed taxa justify. With the world saying how enjoyable the journal has this in mind, articles containing nomenclatoral been to read and asking to be advised of future innovations submitted to this journal will be issues. So, our challenge is to keep the contents subject to review by the editorial group and/or entertaining and relevant to your interest. other specialists before being accepted for I feel that the remit of the journal is still publication. evolving, but there is one thing I can certainly It is our intention to publish articles about promise. Cactus Explorer will always be other succulents as well as cacti. This issue has free as long as I am responsible for its two such contributions, even though the production! habitats concerned are in cactus country. I It is a pleasure to welcome Zlatko Janeba to hope enthusiasts for succulents from other our editorial team. Zlatko lives in the Czech parts of the world will share their adventures Republic and is well connected in the cactus with us. world. There is a long tradition of cactus You will see that this edition includes articles exploration carried out by Czech people and it from many contributors. I am very grateful to continues today. With Zlatko’s help, we hope them and encouraged by their willingness to to bring you articles about their adventures. contribute. I hope to receive more articles from It is also our intention to present you with them as well as from new contributors in the information about aspects of the hobby which future. you may not already have explored, for Here in England, our glasshouses are now instance unusual plants, unfamiliar habitats tucked up for the winter with a hope that it and literature you may never have seen. will be less cold than last year. It is a time of Some of the responses to the first edition mixed feelings, the growing season having have come from traditional Cactus and come to an end, but the promise of more free Succulent Societies and clearly there is some time to read journals and books, visit habitats, concern about the impact of this publication on or write an article for the Cactus Explorer . their membership. Our intention is that the Now there’s a good idea! Cactus Explorer will complement the activities of established Societies, not replace GrahamCharles them. I also hope that we shall stimulate interest in succulents amongst those who do not belong to any of the existing Societies, particularly the young. The next issue of the Cactus Explorer is Before our next edition, there will be major planned for February 2012. If you have not changes to the rules of Botanical Nomenclature already told me and would like to be advised allowing the publication of new names in on- when it is available for download, please line journals, like the Cactus Explorer , for send me your E-mail address to be added to the first time. Roy Mottram, our expert on the distribution list. these matters, explains the changes on page 8 . Thank you for your interest and support! 3 The Cactus Explorer ISSN 2048-0482 Number 2 November 2011 nEws and EvEnts Fig.1 Paul Klaassen showing plants of Pterocactus Fig.2 Jaroslav Snicer selling ‘goodies’ grown in the Czech Republic The Seventh Cactus Explorers Club hintonii and Ariocarpus retusus with white flowers, tinged Meeting 2011 by Roland Tebbenham pink. Paul journeyed to N Zacatecas seeking Escobaria Photographs by Trevor Wray and Roland Tebbenham lloydii at 2200m, but did not find any plants. However, he showed Escobaria dasyacantha chaffeyi , Cylindropuntia A novice explorer reports on the seventh intensive tunicata and many other nice cacti including a 2m tall weekend programme designed to share new Echinocactus platyacanthus . Finally to limestone rock information and appreciate the beauty of nature and pans at 1200m in N Coahuila, where Paul concluded his plants from interesting places. The event was talk with memorable images of a large population of supported by more than fifty enthusiasts, including Mammillaria luethyi . The fine images reminded the guest speakers and delegates from Brazil, Czech audience why Mexico is rewarding exploration territory Republic, Italy, Peru, Sweden and many parts of the for cactophiles. UK. Martin Lowry stepped up to tell us about his Bolivian Nineteen sessions were planned spanning habitats trip with John Carr and a Brazilian botanist during from the USA to Patagonia. Though focused on April/May-2011. They found some unexpected plants members of the cactus family, other interesting plants and others with differences that may revise synonomy. were designated honorary cacti for the weekend. Many He started in the wet, hot tropical forests of the E Andes delegates contributed expert opinions on plant near the Rio Pirai (in Santa Cruz), where they found identities, observations on the presenter’s intellect, or Cleistocactus candelilla , which appeared distinct from C. commented on the quality of the plants illustrated. dependens . As they journeyed west into thorn scrub the Some politer interjections were recorded by the author habitats were dryer and they found Corryocactus sp. , to illustrate the good-humoured atmosphere among the Weingartia neocumingii subsp. pulquinensis and Parodia assembled company! comarapana . The first honorary cacti featured; an Echeveria and a Bomaria [bulb]. Moving to higher Our first presentation was by Paul Hoxey, who spent altitudes Austrocylindropuntia floccosa with many fruits seven days in NE Mexico during October after a were seen above 4000m and Lobivia maximilliana summer of heavy rain. Memorable images included caespitosa at 4600m: these are truly tough plants! 25cm diameter flat discs of Echinocactus texensis with Crossing the range we were challenged to identify a Ancistrocactus scheeri and Ariocarpus trigonus at 200m. By cereoid growing at 2400m – knowledgeable folk offered contrast the cereoid Stenocereus pruinosus makes large (correctly) Yungasocereus inquisivensis – a tropical forest columns near Monterrey [NL]. Another contrast was species here found further north and east than the very cryptic Astrophytum caput-medusae found by previously. John Pilbeam enjoyed more Echeverias on Paul under bushes. This led to a discussion on the canyon cliffs at 3600m. Moving towards Sucre we saw closest Astrophytum habitat – probably A. asterias in many Echinopsis, Parodia and Sulcorebutia plants, the Texas. Paul featured favourite dwarf plants enjoying latter including S. purpurea at 3000m, corresponding to gypsum substrates and canyon walls, where Lau 331. South of Sucre in the area of the Rio Pilcomayo competition is limited: Mammillaria candida , Aztekium and its tributaries Martin commented that the original 4 Number 2 November 2011 ISSN 2048-0482 The Cactus Explorer Fig.3 Seedlings of Mexicn cacti grown in the Czech Fig.4 Chris Pugh and Brendan Burke in discussion..
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