58 Our Native Ferns. 



B. FOREIGN. 



Species Filicum. By Sir W.J. Hooker. 5 vols. 8vo. Contain- 

 ing nineteen plates of American ferns. 



Synopsis Filicum. By Sir W. J. Hooker and J. G. Baker, 

 8vo. London, 1874. Contains descriptions of all ferns known at 

 that date, and is valuable for the determination of species from 

 beyond our limits. It Jficks one very essential feature of a sys- 

 tematic work, namely, a key to the genera, and the grouping of 

 the species is such as to make it often difficult in identification. 



Genera Filicum. By Sir W. J. Hooker. Large 8vo. Illustrated 

 by magnificent plates, representing 135 genera and sub-genera. 



Historia Filicum. By John Smith. 8vo. Contains a review 

 of the classifications of various authors and a statement of the 

 author's system. 



Ferns, British and Foreign, with a treatise on cultivation. By 

 John Smith. i2mo. 



British Ferns. By Margaret Flues. lamo. London, 1866. Il- 

 lustrated by colored plates and giving outlines of fern structure. 



A Fern Book for Everybody. Hy M. C. Cooke. Small i?mo. 



Introduction to Ciyptogamic Botany. By M. G. Berkeley. 8vo. 



Text-Book of Structural and Physiological Botany. By Otto 

 W. Thome. Small 8vo. 



Text Book of Botany. By Julius Sachs. 4to. Oxford, 1875. 

 Without doubt the best work yet published on the subject of 

 botanical morphology, physiology, and the principles of classifi- 

 cation. 



Text-Book of Botany. By Dr. K. Prantl. Translated by S. H. 

 Vines. 8vo. Similar in plan to the larger work by Dr. Sachs. 



