Monographs 



10. 



R.SATTLER. 1973. ORGANOGENESIS OF FLOWERS, a photographic text-atlas 



Univ. of Toronto Press, Toronto. XXVI.208 pp., 1056 figs. $ 27.50 



This book is unique in its kind. It illustrates floral organogenesis in 50 selected species 

 belonging to 43 families and 32 orders of the Angiosperms (11 mono- and 39 dico- 

 tyledons). The photographic material was obtained by means of the dissection technique 

 and emphasizes differential growth in the developing flower bud. No histological sections 

 are included. The author stresses that the book is only a beginning. No attempt is made at 

 a unified interpretation; this is left to the reader. Much of the material was contributed 

 by the author's associates and students at McGill University. 



The material of each species is presented in the same format: floral diagram, floral 

 formula, sequence of primordial inception, brief description of floral organogenesis, other 

 authors, bibliography, and photographs. The latter contain much more information than 

 is included in the text. 



Almost all photographs are of really stunning quality, and are meticulously labelled 

 and captioned. The production and lay-out of the book are excellent and esthetically 

 pleasing. 



Symposium reports 



11. 



J.M.ASHWORTH and J.E.SMITH, eds. 1973. MICROBIAL DIFFERENTIATION 



Cambridge Univ. Press, London, etc. X,450 pp., 63 figs., 30 pis., 11 tabs., combined 

 subject and taxonomic index. £ 7.00, $ 21.00 



The appearance of this volume is a welcome event. Never before has so much 

 information on the differentiation of micro-organisms (in the broad sense) been brought 

 together in one book, and it is sure to serve as an eye-opener to most developmental 

 biologists. The introduction by Bonner and the 14 reviews were presented at a sym- 

 posium held in London in April 1973. Of the 26 contributors the majority were British; 

 seven came from the U.S.A., two from the European continent, and one from Israel. 



The reviews are well written and clearly organized. We will restrict ourselves to 

 mentioning the organisms treated. These include both prokaryotes and eukaryotes: 

 bacteria, Myxobacteria, Actinomycetes, blue-green algae, yeast, Fungi (including Muco- 

 rales and Aspergilli), Trypanosomatidae, Physarum, and Dictyostelium. Morphology, 

 physiology, and biochemistry are duly considered in all instances, and genetic aspects 

 wherever possible. 



The book is well produced and very well illustrated. The numerous photographs and 

 electron micrographs are of top quality. 



12. 



E.F.CORTI and G.SARFATTI, eds. 1973. FROM OVULE TO SEED: ULTRASTRUC- 



TURAL AND BIOCHEMICAL ASPECTS 



Univ. of Florence, Florence. Caryologia suppl.25. 314 pp., 228 figs., 8 pis., 9 tabs. 



This is the report of the third in a series of biennial symposia on the cytology of higher 

 plant reproduction. The present international meeting was held in October 1972 in Siena, 

 Italy. The great majority of the 24 contributors came from various European countries 

 (nine from France). The discussions are not recorded. Half of the papers are in English 

 and the other half in French, but all have English summaries. 



The area covered by the symposium is a relatively new one and very few definitive 



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