156 ARTICLES IN JOURNALS. 



to the geuera and species (as was mentioned in tins Journal for 



1890, p. 880) ; but now he has with Mr. Heald's aid rendered a 



much greater service in supplementing the revised and extended 



Keys with a large Appendix containing 603 descriptions of all the 



species and varieties which have been added to the North American 



Moss-flora since the publication of the Manual up to the end of 



1895. During that period large collections from the States and from 



Canada have been worked over by European bryologists — Eenauld 



and Cardot, and Kindberg. The abundance of the new species with 



which Kindberg embelHshed his Canadian Catalogue (1892) has 



awakened loud protests in the States, and some of them [e. //. 



seventeen out of eighteen in the genus Bicramun) have already 



been reduced. Hence the Manual when revised and brought up to 



date will not receive by any means so large an addition to its 900 



species as seemed likely at the time when Kindberg's Catalogue was 



fresh from the printer's hands. 



The Kei/s are cleverly planned ; and as they facilitate the use 



of the Manual, while the Appendix puts within everyone's reach 



descriptions of the species which are not in the Mamial, it is to be 



hoped that more Americans will be induced to take an interest in 



mosses, and that a wider study of the subject will lead (as Prof. 



Barnes says) to a more accurate knowledge of the distribution and 



variability of the species, in time to allow the ill-founded species 



to be weeded out before the publication of the next edition of the 



Manual. . ^ 



A. G. 



ARTICLES IN JOURNALS.- 



Annals of Botany (March). — M. A. Brannon, ' Structure and 

 Development of Grinnellia americana ' (4 pL). — H. M. Richards, 

 ' Evolution of Heat by wounded Plants.' — A. C. Seward, ' Lyijino- 

 dendron ' (2 pi.). — P. Magnus, ' Some Species of Urophlyctls ' (2 pi.). 

 — R. Chodat, ' Polymorphism of Green Alg^.' — R. J. H. Gibson, 

 'Anatomy of Selayinella' (1 pi.). — D. H. Scott, ' Cheirostrobus, a 

 new type of fossil cone from calciferous sandstones.' — W. T. T. 

 Dyer, ' Note on discovery of Mycorhiza.' 



Bot. Centralhlatt (Nos. 9-12). — W. Grevel, ' Anatomische Unter- 

 suchungen iiber die Familie der Biapensiacea' (1 pi.). — (No. 10). 

 J. Wiesner, ' Ueber die photometrische Bestimmung heliotropischer 

 Constanten.' — (No. 11). A. J. J. Vaudevelde, ' Ueber den Einfluss 

 der chemischen Reagentien und des Lichtes auf die Keimung der 

 Samen.' 



Bot. Gazette (Feb.). — 'Opportunities for Research in Botany 

 offered by American Institutions.' — J. E. Tilden, ' New species of 

 Minnesota Algae ' (3 pL). — G. T. Moore, jun., ' Uroglena americana' 



* The dates assigned to the numbers are those which appear on their covers 

 or title-pages, but it must not always be inferred that this is the actual date of 

 publication. 



