Acknowledgments 



This checklist series on cultivated Ilex is a direct outgrowth of the 

 "Preliminary Holly Check List," Holly Society of America Bulletin 

 No. 6, prepared by Wister et al. (1953). This present work utilized many 

 references that were cited in that publication. Notable among many 

 additional sources of information were the Nursery and Seed Trade 

 Catalog Collection of the National Agricultural Library, Beltsville, 

 Maryland, and international registrations by the Holly Society of America, 

 Inc. Other sources were massive numbers of volumes of precursor and 

 current horticultural and botanical literature, and published and 

 unpublished collections lists obtained from arboreta, botanic gardens, and 

 private gardens. The Holly Society of America, Inc., is to be credited for 

 having published many of these lists. 



The task at hand was to evaluate these materials through study and 

 analysis of accumulated, previously unpublished data, and living plants 

 and herbarium specimens. Accomplishment of the task was greatly 

 enhanced by the cooperation of many other individuals investigating Ilex; 

 including Susyn Andrews of the Royal Botanic Gardens, Kew, England; 

 Fred Galle, Hamilton, Georgia; and Tom Dodd Nurseries, Semmes, 

 Alabama. 



We also acknowledge the contributions of the following from the U.S. 

 National Arboretum: H.M. Cathey, former director; J.L. Creech, former 

 director; the late F. deVos, former assistant director; the late H.T. Skinner, 

 former director; F.S. Santamour Jr., research geneticist; A.M. Townsend, 

 research leader; and especially, the late W.F. Kosar, former research 

 horticulturist, who started Ilex research at the National Arboretum. 



Fred Galle, well-known author and horticultural consultant, made 

 significant contributions from his personal observations of living plants 

 and personal contact with many originators and growers. 



The cover illustration of Ilex crenata was provided by Judith Ho of the 

 National Agricultural Library, Special Collections. The illustration was 

 taken from Vol. 2, "Iconographie Des Essences Forestieres Du Japon," 

 written by Homi Shirasawa and published in 1900. 



IV 



