EUROPEAN HERBARIA. 13 



Besides the herbaria already mentioned, there are two 

 others in London of more recent formation, which possess the 

 highest interest as well to the general as to the American 

 botanist, namely that of Professor Lindley, and of Mr. Bent- 

 ham. Both comprise very complete sets of the plants col- 

 lected by Douglas in Oregon, California, and the Rocky 

 Mountains, as well as those raised from seeds or bulbs, which 

 he transmitted to England, of which a large portion have from 

 time to time been published by these authors. Mr. Bentham's 

 herbarium is probably the richest and most authentic collec- 

 tion in the world for Labiatce, and is perhaps nearly unri- 

 valled for Leguminosce, Scrojihularinece, and the other tribes 

 to which he has devoted especial attention ; it is also particu- 

 larly full and authentic in European plants. Professor Lind- 

 ley's herbarium, which is very complete in every department, 

 is wholly unrivalled in Orchidaceous plants. The genus-covers 

 are made of strong and smooth hardware paper, the names 

 being written on a slip of white paper pasted on the lower cor- 

 ner. This is an excellent plan, as covers of white paper, in 

 the herbarium of an active botanist, are apt to be soiled by 

 frequent use. The paper employed by Dr. Lindley is 8£ 

 inches in length and 11 h inches wide, which, as he has him- 

 self remarked, is rather larger than is necessary, and much too 

 expensive for general use. 



The herbarium of Sir William J. Hooker, at Glasgow, is 

 not only the largest and most valuable collection in the world, 

 in the possession of a private individual, but it also comprises 

 the richest collection of North American plants in Europe. 

 Here we find nearly complete sets of the plants collected in 

 the arctic voyages of discovery, the overland journeys of 

 Franklin to the polar sea, the collections of Drummond and 

 Douglas in the Rocky Mountains, Oregon, and California, as 

 well as those of Professor Scouler, Mr. Tolmie, Dr. Gaird- 

 ner, and numerous officers of the Hudson's Bay Company, 

 from almost every part of the vast territory embraced in their 

 operations from one side of the continent to the other. By an 

 active and prolonged correspondence with nearly all the bot- 

 anists and lovers of plants in the United States and Canada, 



