Rydberg: Notes on Rosaceae 497 



Sprengel's Anleitungen,* 1817. Then comes the question which 

 was the earlier, Purshia DC. or Purshia Spreng. Fortunately, 

 Sprengel himself when proposing Kuntzia gave under Purshia DC, 

 which he replaces, a reference to the Supplement to Lamarck's 

 Encyclopedie Methodique.f where Poiret publishes Purshia for 

 De Candolle, the year before its technical publication by De 

 Candolle in the Transactions of the Linnean Society. There is, 

 therefore, no question concerning Purshia DC. antedating Purshia 

 Spreng. But how about Purshia Raf.? I have been unable to 

 find it mentioned in any of Rafinesque's writings of 1813. The 

 Kew Index gives the publication of Purshia Raf. as "Am. Month. 

 Mag. (18 1 9) 191." At the place referred to we find only the 

 following remarks under Onosmodium: "Sprengel has since given 

 it the name Purshia, which had already been applied to another 

 genus." Nobody can tell if this refers to an earlier Purshia Raf. 

 It may just as well refer to the earlier Purshia DC. Apparently 

 the first appearance of Purshia Raf. was in Journal de Physique! 

 in 1819. It is evident that Purshia DC. can not be thrown out 

 on any other ground than by regarding Burshia Raf. (1808) an 

 error in orthography. It was not a misprint, for Rafinesque 

 states that it was named after Mr. Bursh and on the unpublished 

 plate of Rafinesque's, the original spelling is Burshia. 



CHAMAEBATIA 



Chamaebatia australis (Brand.) Abrams has been . collected in 

 Lower California by Orcutt and Miss Irish and in southern Cali- 

 fornia by Pringle in 1882 and by Chandler, no. 5214. 



CERCOCARPUS 



Cercocarpus macrophyllus C. K. Schneider is the most common 

 of the Mexican species of Cercocarpus. Most of the material 

 labeled as C. f other gilloides belongs to this species. Some of the 

 specimens are cited below. 



Vera Cruz: Orizaba, 1892, /. G. Smith 199; Cuerta de San 

 Juan del Estada, Liehman 17 19. 



Hidalgo: Pachuca, 1905, Purpus 1139. 



* Ed. 2, 2: 450. 1817. 

 f v. 4: 623. 1816. 

 X 89: 257. 1819. 



