THE BOTANISTS OF PHILADELPHIA. 325 



twenty-five years. During a great portion of this time 

 he enjoyed the friendship and assistance in this work of 

 Charles F. Parker. The collection consisted of seven large 

 walnut cases, compactly filled with mounted specimens. 

 " It is impossible to form any definite idea of the number of 

 plants contained, as on many of the sheets several speci- 

 mens are attached from different localities. The specimens 

 are all handsomely mounted on white paper, and properly 

 arranged in heavy manila paper genus covers, and in 

 natural order divisions, the plan of arrangement adopted 

 being that of Durand's Index, corresponding with the 

 nomenclature of the Genera Plantarum of Bentham and 

 Hooker. 



" Every division of systematic botany is well repre- 

 sented. Not only the Phanerogamia or flowering plants, 

 but the Pteridophyta, including a magnificent collection 

 of ferns; the mosses and liverworts, and the Thallophyta 

 are represented by a collection of algae, fungi and lichens. 

 It was the aim of Mr. Martindale to make his collection 

 complete and a representative herbarium, and it is univer- 

 sally acknowledged as surpassing, both in numbers and in 

 the perfection of style and arrangement, any private col- 

 lection in America. 



" His proximity to and knowledge of the peculiar flora 

 of the pine barrens of New Jersey, gave him a fund of 

 material valuable for exchanges, and he was not slow to 

 take advantage of this in obtaining valuable specimens to 

 complete his own collection. His correspondence and 

 exchanges were numerous, including such countries as 

 Canada, Brazil, England, France, Germany, Austria and 

 Scandinavia, and the flora of these are represented in the 



