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80 



BOTANICAL GAZETTE 



[JANUARY 



therefore in his sixty-sixth year. Dr. Allen was one of the organizers of the 

 Torrey Botanical Club, and until the last two or three years, when failing 

 health compelled a partial retirement, was one of the leading spirits in its 

 work. He was early interested in the local flora of the New York city region 

 and assisted in the publication of local lists of the higher plants. His attention, 

 however, was soon drawn to the Charales, and he was for many years the 

 best known American student of this taxonomically difficult group of plants. 

 His extensive collections of Charales, especially rich in North American and 

 Japanese forms, together with his books relating to this order of plants, 

 including the duplicate stock of his own publications, were given to the New 

 York Botanical Garden early in 1901. Dn Allen was for a long time pro- 

 fessor of materia medica and dean of the New York Homoeopathic Medical 

 College, and later president of its board of trustees. He was also president of 

 the New York Ophthalmic Hospital. He was the author of a large work on 

 materia medica and of numerous papers on ophthalmology, etc. In 1885 the 

 degree of LL.D. was conferred upon him by Amherst College, from which he 

 was graduated in 1858. 



