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nearly finished. Dr. Rydberg has also reprinted the 
analytical keys of his “‘Flora of the Rocky Mountains and 
Adjacent Plains” to make an easily portable book for 
field work. 
Dr. Marshall A. Howe, Curator, continued in charge of 
the collections of algae and hepaticae in the herbarium 
and museums. He has prepared a manuscript on the 
Ricciaceae for the North American Flora and has published 
papers on “The Marine Algae and Marine Spermatophytes 
of the Tomas Barrera Expedition to Cuba,” ‘Further 
Notes on the Structural Dimorphism of Sexual and Tet- 
rasporic Plants in the genus Galaxaura,” and “Calcareous 
Algae from Murray Island (Australia) and Cocos-Keeling 
Islands.”” He has also edited vol. XVII of the Memoirs 
of the Torrey Botanical Club, comprising the “‘ Proceedings 
of the Semi-centennial Anniversary of the Torrey Botanical 
Club.” Asa side issue, Dr. Howe had charge of the new 
dahlia border, described in the issues of the Journal for 
August and November. 
Dr. Fred J. Seaver, Curator, continued in charge of the 
fungous collections. Research on the cup-fungi of North 
America for North American Flora was continued. Prog- 
ress also has been made with the genus Phyllosticta (leaf 
spot diseases) of which about three hundred species have 
been described from North America. Some time has also 
been devoted to a study of the Bahama fungi. Two stu- 
dents have carried on investigation at the Garden under 
his supervision. A number of minor papers have been 
published during the year and two lectures have been 
delivered. Work on destructive insects has been con- 
tinued (see report of Assistant Director). 
Mr. Percy Wilson, Associate Curator, continued his 
determinations and studies of tropical American plants, 
and incorporated most of the recently acquired West 
Indian and South American specimens in the herbarium. 
During the summer months he devoted considerable time 
to the classification and rearrangement of exhibits in the 
