330 PROCEEDINGS OP THE AMERICAN ACADEMY 



under the name of/?, lutea nigra. It was afterward (in 1825) more 

 correctly described by Liudley, with a good figure, in the Botanical 

 Register (t. 976), and is readily identified with a western species 

 otherwise unnamed. Lindley also described in the Monugi'aphia his 

 R. acicularis, a Siberian species which is now known to occur in 

 Alaska, and is closely allied to R. blanda. He states that R. hlanda 

 had been collected on the Northwest Coast by Menzies, who was with 

 Vancouver upon the island which bears that navigator's name, and 

 who there doubtless found the common species afterward named by 

 Presl R. Natkana. 



In the same year with Liudley 's monograph appeared that of Rafi- 

 uesque, who follows Pursh, with the addition of R. Ecratina and his 

 own early R. enneaphjlla, and descriptions of fifteen new species from 

 east of the Mississippi. These it is unnecessary to enumerate, though 

 they were taken up by Seringe, and, following him, by Don and 

 Dietrich, and are even discussed by Crepin. 



In 1823 was published James's account of Long's expedition to the 

 Rocky Mountains, in which a description is given by Bradbury of a 

 rose collected by Dr. Baldwin near the mouth of the Missouri River, 

 under the name of R. mutahilis. Beck soon after identified this with 

 Michaux's R. setigera, and correctly, as is shown by the original speci- 

 men preserved in the Torrey herbarium. 



In 1823 also appeared Trattinnick's Rosacecs, with a detailed ac- 

 count of the Roses, based, however, solely upon the descriptions and 

 figures of previous publications. lie found occasion to substitute 

 R. Solandri for R. fraxinifoUa as understood by Lindley, It. Raffi- 

 nesquejana for Rafinesque's R. Jlexuosa, and R. Sprengeliaiin for a 

 form of R. Carolina in German gardens, which Sprengel had named 

 R. Virginica ; but otherwise admits nearly every American species 

 that had come to his knowledge, — twenty-four in all. The revisions 

 in 1825 by Sprengel in the sixteenth edition of the Systema Vegeta- 

 bilinm, the less complete one of Loiseleur in the Nouveau Duhamel, 

 and even that of Seringe in De Cundolle's Prodromus, are of little 

 more critical value. Sprengel follows Lindley, substituting 7?. Lind- 

 Icyi for R. laxa (as a preoccupied name) ; Loiseleur refers Michaux's 

 R. Pennsylvanica to the European 7?. majalis, as a variety, and his 

 R. seligera to R. arvensis ; Seringe follows Sprengel, but drops R. 

 gemella, refers R. pendulina to R. alpina as an American variety, 

 and places 7?. hlanda under R, fraxinifoUa, which he confines to the 

 Northwest Coast. lie also substitutes R. Rafinesquii for R. nivea, 

 one of Rafinesque's new species, all of which are given by him. 



