2 ARKIV FOR BOTANIK. BAND 13. N:0 15. 



Herbarium. At first, I intended to publish some corrective 

 remarks to Gleason's Revision, but I soon made up my 

 mind to give a full account of all West Indian species of Ver- 

 nonia, worked out upon a basis of type specimens available 

 in European herbaria. In the course of my work I have been 

 able, through the kindness of the curators of the Regnellian 

 funds, to visit the following herbaria: 



Berlin. The herbarium of the Konigliches Museum 

 contains the types of the species described by Lessing, Will- 

 denow, and Sprengel, further, the rich collections of the 

 Krug-Urban Herbarium, which through the courtesy of 

 Prof. Ign. Urban have been sent to me on loan, and are 

 the main basis of my studies. 



Brussels. The herbarium of the Jardin Botanique 

 is of especial interest to students of the South American Ver- 

 noniae, as it contains the types collected by Manso, Lind- 

 berg, and others. 



Geneva. The Prodromus Herbarium contains the 

 types of De Candolle. In the Delessert Herbarium I have 

 found duplicate specimens of the types of some French and 

 Spanish botanists, viz. L. C. Richard and La Llave et Lex- 

 arca. The Boissier Herbarium contains a very good series 

 of Wright's Cuban plants. 



London. The Kew Herbarium possesses the tj-pes 

 of Gardner. 



Munich. Here the types of Martius are kept, described 

 in the Prodromus by De Candolle. 



Paris. The collections of the Museum d'Histoire Na- 

 turelle are of the greatest importance, containing the types 

 of Lamarck, L. C. Richard, Humboldt-Bonpland-Kunth, 

 Cassini, and others. The Cosson-Durand Herbarium, which 

 is kept apart, contains the types of Schultz-Bipontinus. 



I have, further, had on loan some material of Vernonia 

 from the British Museum and the Museums of Copenhagen, 

 Florence, Gottingen (of especial interest, containing the 

 types of Grisebach), Lund, St. Petersburg, Upsala, and 

 Vienna. I beg to render my sincerest thanks to the di- 

 rectors of all herbaria now mentioned. 



When quoting the specimens, I have indicated, in 

 parenthesis, in which herbarium they are to be found. The 

 letters in parenthesis signify: 



