ETUDES SUR LA FLORE DU KATANGA 219 



There are fourteen chapters : — The cells and tissues of plants, 

 meristematic tissues, dermal, mechanical, absorbing, photosyn- 

 thetic, vascular, storage, aerating, secretory and excretory, motor, 

 sensory and stimulus-transmitting systems, and a concluding 

 chapter on secondary growth. Each of these chapters is sub- 

 divided into convenient portions. 



The translator's part of the work seems to be well and care- 

 fully done. Owing to the adoption of a somewhat free trans- 

 lation, the book hardly reads as if it were translated. The time 

 that has elapsed since the fourth German edition (1909) appears 

 rather long, and meanwhile certain portions of the study, for 

 instance, those on light perception, have been somewhat extended. 

 The recent results have not been incorporated by Mr. Drummond, 

 we think advisedly. The only additions made are indicated by 

 square brackets and seem to consist merely of words added for 

 greater clearness. An innovation is the gathering together of the 

 notes at the end of the book instead of the perhaps more conve- 

 nient place at the end of each chapter which they occupied in the 

 German editions. There is a subject index and an index of plant 

 names. Botanical students will welcome this book. There are 

 few laboratories which do not possess the original work, but the 

 German language is not, as a rule, read by students with ease. 

 The binding and printing are both excellent and the figures clear. 

 The author is to be congratulated on the completion of his 

 arduous task of making this standard work accessible to many 

 who would not otherwise have been able to read it. 



J. Eamsbottom. 



Etudes sur la Flore clu Katanga. (Annales die Musce du^ Congo 

 Beige, Botanique, ser. iv. vol. ii. fasc. i.) Par Em. de 

 WiLDEMAN. Brussels, Sept. 1913. 



Dr. de Wildebian continues his researches into the flora 

 of the southernmost province of the Belgian Congo in a Memoir 

 in which a large proportion of the families of Pteridophyta, 

 Monocotyledones and Dicotyledones occurring in that part of 

 Africa find a place. In a work so discursive it is no matter for 

 wonder if some of the author's determinations invite criticism. 

 For instance, the plant named Geophila herbacea K. Schum. 

 {Kassner, 2427) seems to us to be G. reniformis Cham. & Schlecht. ; 

 so, too, Pentanisia variabilis Harv. is rather P. ScJuoeinfurthii 

 Hiern, and Nicxia platyphylla Gilg is N. sambesina Gilg, while 

 for Buellia prcetermissa Lindau, B. patula Jacq. should be read, 

 and Kassner's 2908 is certainly not Brillantaisia patula T. And., 

 nor is the same collector's 2619 Barleria salicifolia S. Moore ; 

 moreover, Kassner's 2405 is PhyllantJms leucanthus Pax, not as 

 here stated P. odontadenius Miill. Arg. Among several over- 

 sights we may mention that the plant called Vcrnonia Kassneri 

 De Wild. & Muschler must be renamed, the trivial being already 

 occupied, and the same remark applies to Ipomixa Kassneri. The 

 letterpress also is not entirely satisfactory ; thus the headings 



