138 



The Flora proper occupies 705 pages and ** is perhaps 

 the most complete work of the kind ever issued for any district, 

 including detailed and full records of 1,044 phanerogams and 

 Vasculav Cryptogams, li Characeas, 348 Mosses. 108 Hepatic^, 

 258 Lichens, 1,009 Fungi, and 382 Freshwater Algae, making a 

 total of 3,160 species. 



' There are also three indexes: one to the preliminary chap- 

 ters and explanations; one to the families and genera; one to 

 the common and rustic names. 



The whole has been done with great care and forms a worthy 

 monument to the author's love for his subject extended over 



many years 



Joseph Jackson 



The Development of Piiidaria globulifera, L. D. H. Campbell, 

 (Annals of Botany, ii, 233-264, Plates XIIL, XIV., XV.) Two 

 objects, the author states at the beginning of this paper, were in 

 mind during the study: ** ist, the investigation of the life history 

 of Pihilaria globiilifera ; and 2nd» to determine how far the 

 paraflFin imbedding process was of practical application in tne 

 study of vegetable embryology." By the successful operation 01 

 the methods of the second, the author has succeeded admirably 

 in the first undertaking, since we have presented by far the most 

 complete account of the life history of Pihilaria that has yet ap- 

 peared, correcting in more or less detail, some of the miscon- 

 ceptions of earlier investigators. 



The methods of germinating, the characters of the micro- 

 spore and macrospore, the growth of the prothallia, male and 

 female, as well as the growth of the embryo after fertilization, 

 are discussed in detail. The field opened up by Dr. Campbell in 

 his studies of the hfe history of the Pteridophytes is a large and 

 interesting one and will doubtless clear up many points relating 

 to the classification of our species. At the close of the paper a 

 doubt is suggested in regard to the supposed close relationship 

 of the Salviniacese and the Marsiliaceas ; we have always supposed 

 them worthy of separation in ordinal ranks The paper is very 

 fully illustrated with three double page plates. 



L. M. U. 



