THE FERN'S PLACE IN NATURE. 55 



LITERATURE. 



Bower (F. O.). The comparative study of the Meristem of 

 Ferns as a phylogenetic study. In Annals of Botany, in, 305- 

 332, pi. xx-xxiv (1889). 



— — Is the Eusporangiate or the Leptosporangiate the more 

 jjiimitive type in the Ferns.'' In Atmals of Botany, v, 109-134, 

 pi. VII (1891). 



Campbell (Douglas H.). On the affinities of the Filicineae. 

 In Botanical Gazette, XV, 1-7 (1890). 



— — A study of the apical growth of the prothallium of Ferns 

 with reference to their relationships. In Bulletin of the Torrey 

 Botanical Club, xvill, 73-80 (1891). 



On the relationships of the Archegoniata. In Botanical 



Gazette, xvi, 323-333 (1891). 



137. Since many students have no accessible list of the 

 leading literature of the lower plants, and available manuals for 

 their study for the most part have not been written, it may not 

 be considered amiss to indicate some of the leading systematic 

 literature relating to their study. It is not to the credit of 

 American botany that we are obliged to this day to refer to 

 European manuals as the best media for information concern- 

 ing the lower plants of this country. It is to be hoped that a 

 stimulus will be given to the study of tiie lower plants in all 

 parts of tlie country. The literature will be arranged in con- 

 formity with the classification above given. 



1 . ALG^. 



Farlow (W. G.). Marine Algse of New England. Report 

 of U. S. Fish Comiii. (1879). 



KiRCHNER (Oskar). Algen, in Cohn : Kryptogainenflora 

 von Schlesiefi. 



WiLLR (N.). Algen, in Engler-Prantl : Die natiirlic/ien 

 Pfansenfamilien. Contains valuable synopses of genera. 



WOLLE (F.). Fresh-water Algse of the United States. 2 

 vols. (1887.) 



Harvey (W, H.). Nereis Boreali-Americana. 3 parts, 4to. 



