Guide to Standard Floras of the World: An Annotated, Geographically Arranged Systematic Bibliography of the Principal Floras, Enumerations, Checklists and Chorological Atlases of Different Areas. By David G FrodinHandbook of North European Garden Plants: With Keys to Families and Genera.Edited by James CullenRecent Advances in the Biochemistry of Plant Lipids: Proceedings of the 14th International Symposium on Plant Lipids held in Cardiff, U.K., in July 2000. Edited by J L Harwood and P J QuinnCrop Pollination by Bees. By Keith S Delaplane and Daniel F Mayer