BRAZILIAN REGIONS. 



39 



ing in marshes ; and two species of Amaryllis that seemed really epi- 

 dendric. growing only on the trunks of trees. 



The specimens we collected in Brazil were prepared by Mr. Brack- 

 enridge, and were not reviewed by myself; but immediately after 

 leaving in the Vincennes, I made from memory a List of the Plants 

 as seen growing, which List when first drawn up was examined 

 together by Mr. Brackenridge and myself. As given below, the List, 

 like most of those inserted in this volume, is compiled from two sets 

 of notes ; my original rough notes, and the revision of them entered 

 on my Journal. Some incidental notices in my memorandum books 

 have supplied further material ; but all additions made subsequently, 

 during the continuance and after the close of our voyage, are dis- 

 tinguished by being included in parentheses or rounded brackets, ( ) . 



For the mimhering of the species, a geographical order has been 

 adopted : commencing with Easter Island and the coral islands in the 

 Pacific, and proceeding Westward through the East Indies and Tropi- 

 cal Asia and Africa to the Cape Verd Islands in the Atlantic ; thence 

 in the Southern Hemisphere from Chatham Island and New Zealand, 

 Westward to Australia and Austral Africa; thence in the Northern 

 Hemisphere, from the Azores and Madeira, Eastward through Europe, 

 Asia, and Northwest America to our Atlantic States. By this 

 arrangement, the Eastern Continent with all its appendages is kept 

 separate from the American ; and the numbers making the circuit of 

 the globe, the experience of our whole voyage is in general applicable 

 at every step in our description of the countries visited. In the follow- 

 ing List, therefore, of the plants we observed in Brazil, No. 1 marks 

 genera that did not make their appearance in the above-described cir- 

 cuit ; Tropical America being now for the first time reached : 



Davilla rugosa, Poir. ; (No. 1). A woody vine, bearing some general resemblance to 

 Celastrus scandens ; not seen in flower ; the berries unilocular. Rather frequent.* 



Anona palustris, (No. 2). A small tree, intermingled with the mangroves; and with them 

 and other submaritime trees, forming a regular forest, about twenty feet high, through- 

 out the brackish swamps along the Estrella estuary. 



* Throughout this volume, the plants not indigenous, are enumerated by themselves in 

 notes at the base of the pages. It should be observed, however, that during our visit to 

 E-io Janeiro, I paid very little attention to the introduced plants, except to avoid them. 

 The notices here given are therefore to be regarded as merely incidental. 



