Researchers from the Arnold Arboretum, Rob Nicholson and Melvin Shemluck on site in Mexico

Mystery Magnolia - Page 2/9
In January of 1990, on the recommendation of Mark Kane (at that time associate editor of Fine Gardening), a research team sponsored by the Arnold Arboretum of Harvard University contacted us regarding a proposed expedition to the Sierra Madre Oriental. The purpose of this expedition was to collect samples of Taxus globosa to be used in a cancer research project sponsored by the National Cancer Institute. Their previous venture into the area to locate taxus had ended in failure; therefore, to insure that this expedition would be a success, during the summer of 1990, we purchased maps that had been compiled and printed by the Mexican government during the 1970's. Several of these maps proved most informative because they recorded vegetation with reference to specific areas. By plant family name association, we were able to locate several new colonies of Taxus globosa. To our surprise we noted that Magnolia grandiflora is listed in this plant inventory. Could this information possibly be correct, or is it just another botanical error? This mystery magnolia stimulated much excitement and haunted our thoughts, but many months and events passed before there was time to look further into this intriguing information.
The College of Forestry Science at the State University of Nuevo Leon, in Linares, arranged for Eduardo Estrada-C., a biology student, to accompany us on this expedition to collect Taxus globosa. In mid-October of 1990 we were joined by Lalo, as Eduardo is called by his friends, and headed off on this memorable quest. We had spent long hours studying maps and untold days in late summer locating and maneuvering through uncharted networks of narrow, rocky roads and paths that lead to higher elevations where taxus grow. As a result we were able to quickly lead the research team to large stands of healthy trees. We located five colonies of this potentially important small tree and the researchers collected foliage and branch samples from over fifty trees for testing. We have never been privy to the information concerning exact figures on the taxol content of these samples, whatever happened to the rooted cuttings made from some of these collections, or just who is to benefit from this project. It is hoped that in the future it will be Mexico.
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Eduardo Estrada-C with Beschorneria septentrionalis at the northern exploration site.