THE FLORA OF NORTH AMERICA. 45 



Some Western Species of Agropi/ntDi, 1902. 

 Native and Introduced Saltbuslies, 1904. 



Cart Otto Rosendahl was born the 24th of October at Spring 

 Grove, Minnesota. His parents were Norwegians. He graduated 

 at the University of Minnesota in 1901; was instructor in botany 

 at the' same institution, 1901 — 2; and took his Ph. D. at Berhn, 

 Germany, in 1905. He lias paid special attention to the flora of 

 Minnesota. He has published the following: 



An Addition to the Knowledge of the Flora of Southeastern Minnesota, 1903. 



Die Nordamerikanischen Saxifragineo:', 1903. 



Observation in Plant Distribution in the RenfrewDistrictof Vancouver Island. 



Pehr Hjalmar Otson-Seffer was born at Ekenas, Finland, the 

 14th September, 1873, became instructor in Swedish at Marie- 

 hamn College in 1896 and of botany at Helsingfors College in 

 1896, made a journey to Australia and migrated to America in 

 1903. He became instructor in systematic botany at Leland 

 Stanford University in 1903, and received his Ph. D. in 1904. In 

 1905, he made a journey to Central America and in 1906 — 7 a 

 journey around the world, in order to study rubber-culture and 

 tropical agriculture. His specialty is Phytogeography and 

 Economic Botany. He was for a short time the director of La 

 Zaculpa Botanical Station and Plantation in Chiapas, Mexico, 

 and was lately appointed Governmetal Comissioner of tropical 

 agriculture of Mexico. He is the editor of the department of trop- 

 ical agriculture in the Mexican Investos. 



Mexico — Rubber Experiment Station Prospectus, 1906. 



hiar Tidesirom was born the 13th of September, 1865, in the 

 Province of Nerike, Sweden, and came to America in 1881. From 

 1890 — 5, he was a student and assistant of Prof. E. L. Greene, at 

 the University of California, and later at the Catholic University 

 of Washington, D. C, where he received his Ph. B. 



Notes on Botrychium virginicum, 1905. 



Notes on the Gray Polypody, 1905. 



Ely-^itim marianum [Ferns and Fern-allies of Maryland and Virginia]. 



J. Lunetl was born at Kalmar, Sweden, the 30th of March 

 1851, received his license to practice medicine in Dakota in 1S89, 

 and is now a practicing physician at Leeds, North Dakota. He 

 has made extensive botanical collections in Dakota and in Oregon. 

 A few new plants discovered by him have been described by Prof. 



