48 SCANDINAVIANS AND 
the manuscript of the genus Hieracium for the Conspectus F'lorae 
Groelandicae. 
Studien iiber siid-und centralamerikanische Peperomien, 1900. 
Studier Sfver arktiska Taraxaca, 1905. 
Arktiska och alpina arter inom formgruppen Taraxacum ceratophorum, 1906. 
C. West Indies. 
Johannes Eugenius Buelow Warming was bornon Mand, Jylland, 
Denmark, the 3rd of November, 1841, received the degree Ph. D. 
in 1871, became docent at the University of Copenhagen in 1874, 
at Stockholm, 1882—6, and was appointed professor and director 
of the Botanical Garden at Copenhagen, in 1887. 
He undertook in 1863 a journey to Brazil, where he remained 
for three years. The book published on Lagoa Santos after his 
return home, placed him at once as one of the leading phytoge- 
ographers of the world. In 1884 he and Theodor Holm joined 
the Fylla Expedition to Greenland, and in 1891 and 1892 he un- 
dertook a botanical exploration of the West Indies and South 
America. He was accompanied by Holger Jérgen Lassen, and 
Mr. Levissen, a forester, and visited Barbados, Trinidad, Venezu- 
ela, Porto Rico, and the Danish West Indies. During these trav- 
els of his he gathered extensive material and knowledge, which 
he used in his phytogeographical and ecological works. He drew 
also from the work done in the West Indies by Bérgesen and 
- Paulsen. The works that treat more or less of the North Amer- 
ican Flora are the following: 
Biologiske Optegnelser om Grénlendske Planter, 1886—’90. 
Halophytstudier, 1897. 
On the Vegetation of Tropical America, 1899. 
Familjen Podostemacee, 1881—1901. 
Om nogle arktiske Vexters Biologi, 1886. 
Holger Jérgen Lassen was born at Copenhagen, July 10th, 1868, 
and received the degree Ph. Cand.in1887. Hepartook inthe Green- 
land Expedition of 1890, and accompanied Prof. Warming on his 
journey to the West Indies and Venezuela in 1891—2. He died, 
October 3rd, 1897. He has publishid some smaller articles on 
