REVIEWS 1994] 153 thinking. I had hoped to learn why Cronquist did not accept the recent work by Dahlgren and his colleagues (Dahlgren et al. 1985) on the taxonomy ofthe Liliaceae sensu lato, but I did not gain new insight. Volume I concludes with James Reveal's overviewoffloweringplant families(Chapter 15). Chapter 1 5 subsequentlyisfollowed by the very useful Appendix 15.1, a table outlining the taxonomy of the flowering plants according to the Cronquist system as adopted by the Flora ofNorth America. The final appendix, Appendix 15.2, provides a table illustrating the concordance of family names accepted by the major systems offlowering plant classification systems. As is customary to note, there are some distractions in the volume, but they are truly minor. Some, for example, might object to the large-size format and the hefty nature ofthe volumes. These are not strictly field books, but neither do I abuse my floras. For example, I would not backpack into the Sierra with a single FNA volume in my pack, but I will carefully stash the FNA in the back ofmy car when travelling to Montana collecting Calochortus. Others may think that Volume I is unnecessary to have, in that it does not contain any diagnostic keys. This is far from true, as this text provides critical background and synthesis for understandingthe philosophy, botanical traditions and assumptions that guide the development of the Flora ofNorth America. As stated so eloquently by Reveal and Pringle in Chapter 8: "Most who pick up this and the subsequent volumes will find the history of systematics and floristics on every page, for each plant name has a story to tell. Those who look into that story will find wonderful rewards and an even greater appreciation ofsystematics" (192). I would add that the history of systematics and floristics of North America provided in Volume I are essential to the understanding and appreciation ofeach page ofthis botanical opus. My parents maintained an extraordinary library in their home, full of books pri- marily on world geography and art history. These oversized books were kept on the lower shelves, mostly because their size and weight dictated such a place. As a child I spent hours lying on the floor, perusing their books to gain some extra insight into my parents' personalities, especially as to what gave them great joy and why they were so proud to be a part ofhumanity. I shall do likewise, and keep these volumes ofthe Flora ofNorth America (and those to come) on the lower shelves ofmy library so that my children will have the same unspoken opportunities as I. References Levin, D. 1979. The nature of plant species. Science 204:381-384. Dahlgren, R. M. T., H. T. Clifford, and P. F. Yoe. 1985. The Families of the Monocotyledons. Springer-Verlag, Berlin. Mishler, B. D. and M. J. Donoghue. 1982. Species concepts: a case for pluralism. Systematic Zoology 31:491-503. Munz, P. A. 1968. A California flora with supplement. In collaboration with D. D. Keck. University of California Press, Berkeley. Hickman, J., ed. 1993. The Jepson manual: higher plants ofCalifornia. University ofCalifornia Press, Berkeley. — Peggy L. Fiedler, Department ofBiology, San Francisco State University, San CA Francisco State University, San Francisco, 94132. A Natural History ofCalifornia. (California Natural History Guides: 56). By Allan A. Schoenherr. 1992. University ofCalifornia Press, Berkeley and Los Angeles, xi + 772 pages. $38.00, ISBN 0-520-06921-8 (hardcover). Allan A. Schoenherr, Professor ofEcology at Fullerton College for more than thirty years, avid traveler, andactiveadvocate ofrationalenvironmental policyhasprepared this splendid text that will enable all readers to quickly acquire substantitive insight MADRONO 154 [Vol. 41 into the ecology and natural history of all of California, or simply their favorite regions. Mr. Schoenherr's brief introduction to California's natural regions apprises the reader as to the scope and organization of the book. A condensed, but lucid review ofbasic ecology follows, encompassing concepts ofecosystem structure, complexity and stability, flow of matter and energy, laws of thermodynamics, nutrient cycling, and trophicrelationships. Theauthorcontinueswith considerablediscourse onweath- er and climate, as influenced by latitude, continental location and local topography, and classifications of biotic communities. Basic geology is discussed, emphasizing the complexity ofCalifornia's landscapes. The relationships ofgeology, soils topog- raphy and climate are discussed in the context ofthe evolution ofbiotic regions and consequent high diversity and endemism found in California. The introductory chap- ters provide a solid foundation for understanding the remaining chapters, and will be enjoyed by all, regardless oftheir prior knowledge or experience. The heart ofthis book is organized around geographic regions, "using as a starting point the geomorphic provinces described by the California Division of Mines and Geology." The Sierra Nevada, for which Mr. Schoenherr displays copious intimate knowledge, and reverence, is discussed extensively in all of its aspects including geology, climate, and the diverse plants and animals of its several biotic zones. Although the author states that the treatment of plants and animals is in no way intended to be exhaustive, there is no shortage of information here. Conspicuous, interesting and distinctive species and their ecological roles are emphasized. A sep- arate chapter is devoted to subalpine and alpine environments of Mountaintops of the Sierra Nevada, Klamath province Cascade Ranges, Great Basin, and the Trans- verse and Peninsular Ranges, wherein Mr. Schoenherr examines the insular nature ofmountaintops, and then compares and contrasts the floral and faunal components of these isolated regions. Again, the author demonstrates intimate familiarity with the places he discusses. In the chapter entitled Pacific Northwest Mountains, the Klamath Mountains and Cascade Rangesaretreatedin the same formatas that forthe SierraNevada. Similarly, the chapters following in order include: Coast Ranges; Cismontane Southern Cali- fornia (Transverse and Peninsular Ranges); Deserts (Great Basin, Mojave, Colorado); and, Great Central Valley. As with the introductory chapters, everyone will benefit from reading each chapter, regardless of their level of familiarity or fondness for a particular biotic region. The reason for this is that not only does Mr. Schoenherr develop a thorough overview of each region, but each chapter also contains little- known, curious, interesting, enigmatic, anecdotal, insightful, and sometimes inciteful information. Each chapter is supplemented with a listing ofselected references. Finally, two chapters are devoted to the ecology and natural history ofthe diverse habitats of Inland Waters and the Coastline. These chapters are a bonus for those readers whose biological experience is primarily terrestrial, especially since the level oftreatment is nearly as extensive as that ofthe previous chapters. Mr. Schoenherr closes the last chapter with a section on California's Islands, therefore, everyone will be satisfied and no biotic regions and habitats are left untouched. In an Epilogue, Mr. Schoenherr deplores the failure ofmany Californians to appreciate the value and fragility of natural systems, and dedicates his book to a changing attitude toward protecting and restoring California's rich natural heritage. The book contains 371 photographic figures and line drawings to illustrate im- portant features and concepts. The reader may notice that many ofthe photographs as reproduced as a little too dark. Although this is not a major detraction, the author indicates that this will be corrected in a second printing. The sixteen color plates, each with multiple figures are top-quality. A few minor typographical and spelling errors were noted. Mr. Schoenherr utilizes standardized common and scientific names almost universally, however, some persons may take exception to certain nomencla- ture for plants and animals used in this book. If one will forgive a few slight no- menclatural deviations, then they will have no trouble assimilating the more impor- tant aspects ofthis book. Yet other readers might suggest that the scientific usefulness REVIEWS 1994] 155 of the book is diminished by the absence of literature citations in the body of the text. Those readers should consider that the book, already two-inches thick, would beconsiderablythicker, had thisbeen done. Some readers may object totheoccasional sprinkling of Mr. Schoenherr's philosophy and environmental ethic, but probably not those readers genuinely interested in California's natural environments. Mr. Schoenherr has admirably fulfilled his objective to familiarize readers with this special place called California. It is apparent that this book was an immense undertaking, and no other single reference compares to it in terms of volume and informational content. After reading it, a person will be able to describe the climate, rocks, soil, plants, animals and biogeography of any area ofCalifornia, and be able to explain how things got there and the ways in which they relate to each other. This book will foster appreciation for California's natural diversity, much of which is treatened. The breadth and depth of Mr. Schoenherr's writing makes this book es- sential reading for those of all interests and avocations, including experienced biol- ogists, environmental professionals, students and naturalists. -Carl Wishner, 28328 Agoura Road, Agoura Hills, CA 91301. Interface Between Ecology and Land Development in California. Edited by Jon E. Keeley. 1993. Southern California Academy of Sciences, Los Angeles. 297 pages. $28, ISBN 0-9626305-3-5 (hardcover). In the preface to this book, Jon Keeley comments that "The interface between ecology and land development is a battleground of opposing interests and values, with factions fighting to ensure their own version ofquality oflife." The symposium from which this volume arose was convened to provide a forum which would bring together researchers, policy makers, conservationists and other interested parties and which would explore strategies to deal with the inherent battle between ecology and development. The resulting proceedings consists of 49 papers on a wide variety of topics, grouped under headings "Biodiversity and conservation," "Land management and land stewardship," "Wildlife and corridors," and "Mitigation and community restoration." The book starts offwith a keynote address on "Ecology and species extinction: a global perspective," by Peter Raven, which provides one of the most coherently- argued and well written essays on the value ofbiodiversity and the problems facing it that I have come across. Raven firmly asserts that the root cause of the current biodiversity crisis is the rapidly increasing human population, but also points to the failure of the United States to assess its own population increase or its per capita consumption. These problems are central to the question of development in Cali- fornia. The remaining papers are written by people from a variety of backgrounds: aca- demic biologists, consultants, state and local government personnel and representa- tives of a variety of conservation interest and lobby groups. Given such a range of backgrounds, it is inevitable that individual contributions will push particular bar- rows, and that a certain level ofdistrust and/orcynicism will come through. However, the overall tenor of the volume indicates the need for the various groups to work together ifanything oflasting value is to be achieved. In particular, there is a strong call for scientists to become more involved in policy and advocacy. Scientists tra- ditionally sit on the fence when faced with contentious issues, partly out of self- preservation, but also because they are reluctant to make "bottom line" statements in the face of complexity and uncertainty. However, there is a growing recognition that planning and management decisions are going to be made anyway, and it is betterthat theyare made with some scientific input instead ofin a knowledge vacuum. Dan Silver summed the situation up nicely: "Activism and advocacy in politics and conservation are simply a necessity, especially for scientists. Ifwe are to save what's left ofour nature in southern California, nobody will do it for us."