458 Field Columiuan Museum — Botany, Vol. I. 



1895-96. Paulsen, Ove Wilhelm (1874), born at Aarhus (Den- 

 mark), March 22, 1874, studied botany in the University of 

 Copenhagen, and in company with F. Borgesen spent three 

 montlis (December, 1895-February, 1896) on St. Thomas. St. 

 John and St. Croix. From March, 1898, until November, 1899, 

 he accompanied First Lieutenant Olufsen on his expedition to 

 the Pamir Plateau. Paulsen is now assistant in the Botanical 

 Museum, Copenhagen. 

 Coll. : Bot. Museum, Copenhagen. 

 Lit.: Kiaersk. in Bot. Tidsskr. Kopenh. XXIII (igoo), p. 42; 



Urb. Symb. I, p. 14. 



1895-96. BoRG. OG Pauls. Dansk-vestlvd. Oer. — F. Borgesun 01, 



Ove Paulsen: On Vegetationen paa de Dansk-Vestindiske Oer 



(Botan. Tidsskr. Kjobenhavn, vol. XXII (1898), p. 1-114. 43 



figures, plates i-ii). 



One of the authors had previously visited the Danish West Indies 

 during February and ISIarch, 1892, expressly for the purpose of study- 

 ing the algal flora, without however neglecting the land vegetation. 

 When in 1895 the frigate " Fyen " made its trial trip to the West 

 Indies he, together with his colleague, Ove Paulsen, received per- 

 mission to accompany it in prosecution of his studies. As the result 

 of their investigations (from December 22, 1895, until February 2, 

 i8g6), the above publication appeared: Concerning the vegetation of 

 the Danish W'est Indies. 



In this work the halophytic vegetation was elaborated by Borge- 

 sen, and is divided into five groups. 



I. The sea vegetation, which notices both the sea phanerogams 

 and some of the algal societies which occur in that region. 2. The 

 strand vegetation which is .subdivided into the littoral herbaceous 

 plants of the Pescaprae society, and the more remote from the sea, 

 Coccoloba-Manchinil society, which includes Coccoloba uvifera. Hip- 

 pomane Mancinella and a large number of shrubs. 3. The costal 

 cliff vegetation, with Baccharis dioica as a typical plant. 4. The 

 mangrove vegetation, to which the author felt justified in adding 

 besides Rhizophora, Avicennia and Laguncularia, at least so far as 

 the West Indies are concerned, Anona palustris and Conocarpus 

 erecta, while he excludes Bucida buceras. In the case of the indi- 

 vidual species, as under group 2, the various morphological, biologi- 

 cal and anatomical characters, especially the pneumatophores, are 

 noticed. He also enuinerates the plants of the slimy soil under the 

 mangroves. 5. The vegetation of the saline clay plains, with Sali- 

 cornia ambigua and many other species, which, however, also occur 

 for the most part on the beach, for types. 



The copse and forest vegetation is described by Paulsen: (i) the 

 vegetation of Orkanoen, a small island on the west side of the harbor 

 of St. Thomas, whose plant-covering consists for the most part of tall 

 bushes; (2) St. Thomas, and (3) St. John with their richer forests; and 

 finally (4) St. Croix, whose Croton-thickets, which occur chiefly on 

 the east side of the island, are treated in detail. He also enumerates 



