Bihliographical Notices. 365 



Groups 1—4 are, from their approach to Algoe, classed together 

 as Phycomycetes. 



Of those in category II., 7 and 8 are to be regarded as standing 

 in relationship to the Phycomycetes ; 9 in relationship, of course, 

 with 5 ; and 10 with 6. 



When the above Table is converted into a linear series for use 

 the groups therefore follow thus : — 



1. Peronosporeae. 5. Chytridiese. 



a. Ancylistea^. 6. Protomyces and Ustilagineae. 



h. Monoblepharis. 7. Ascomycetes. 



2. Saprolegniea3. 8. Doubtful Ascomycetes. 



3. Mucorini. 9. Uredinese. 



4. Entomophthorefe. 10. Basidiomycetes. 



In this order the groups are taken here in Chapter V., and a com- 

 parative survey is made of the life-histories of each, which are 

 discussed in detail. It would be entirely beyond the scope of the 

 present notice to enter upon an explanation of the motives which 

 have. led to the above classification, since to adequately appre- 

 ciate the force of the case made out for it. Chapter IV. must be 

 carefully studied, and I venture to think that no mycologist could 

 well find more instructive reading. Those who are familiar with 

 the advances made during the last eighteen years will at once re- 

 cognize in it an embodiment of the author's well-known views and 

 a conformity with the present general tendency on the subject of 

 classification. 



The third section of the first part deals with the physiology of 

 the Fungi proper, and contains chapters on the phenomena of ger- 

 mination and vegetation, with a specially interesting treatment of 

 parasites and saprophytes. 



The second part is occupied with the Mycetozoa, Chapter VIII. 

 being devoted to their morphology and IX. to their physiologj'. A 

 very particular interest attaches not only to this group but to any 

 publication Prof, de Bary may give us on the subject, when the 

 excitement is recalled which was caused by the appearance of his 

 study of tliese remarkable organisms twenty-five years ago. Nor 

 will the reader be disappointed with the present discussion of the 

 subject. 



TJie thii'd part, devoted to the Bacteria or Schizomycetes, also 

 contains two chapters (X. and XL), dealing respectively with the 

 morpholog)' and physiology of a group of fascinating interest to 

 many — botanist and pathologist alike. The pathologist has had it 

 all, or nearly all, his own way with them of late, and it is refresh- 

 ing to find the subject treated by a botanist whose experience of 

 such organisms and their allies is without doubt unrivalled. From 

 these two chapters both classes of students of the Schizomycetes will 

 learn much, and its lessons, it is to be hoped, will be taken to heart 

 in the right quarter. 



There is one impression which is to be obtained from a study of 



Ann. SMag. K Hist. Ser. 5. Vol. xiv. 28 



