398 Rydberg : Notes on Rosaceae 



it from its publication until it was used in the Pflanzenfamilien. 

 If the choice had been only between Sorbaria and Basilima there 

 might have been another reason why the former should be pre- 

 ferred ; the latter was proposed by the erratic Rafinesque, who did 

 things only by halves. But Schizonotus^zs, proposed by Lindley, 

 one of England's most prominent botanists. Perhaps the fact that 

 Rafinesque applied the name Schizonotus to a different genus had 

 something to do with it ; but Rafinesque never intended to name 

 a new genus ScJiizonotus, when he used it as generic name for 

 Spiraea discolor Pursh. He simply thought that he was using it in 

 the same sense as Lindley. It was simply a matter of wrong 



identification, 



Chamaebatiaria 



This genus has been supposed to be monotypic. There ex- 

 ists, however, a second species, although it seems to be very rare 

 and of a rather restricted distribution. C. Millefolium resembles the 

 genus Chamaehatia in general habit and has often been mistaken for 

 it, but this likeness is still greater in Chamaebatiaria glutinosa. 

 Even to a trained botanist, who knows both, it would be hard, with- 

 out flowers or fruit, to distinguish the latter from CJiamaebatia 

 foliolosa. The oldest specimen known of C. glutinosa, viz., its type, 

 was sent to Dr. John Torrey, who wrote the following remarks on 

 the sheet : " Given to me by Dr. Bolander, in San Francisco, Sept., 

 1872. The only specimen he had ever seen. We both supposed it 

 might be a n. sp. of Chamaebatia, but it proves to be a Spiraea, 

 nearly allied to my 5. Millefolium. 4-5 feet high." 



Besides the type, only the following specimens have been seen 

 by the writer : 



California : 1855, Neivberry. 



Nevada: Ward; iZZ^, Mrs. Clements. 



PORTERANTHUS 



This genus was first published under the name of Gillenia 

 Moench in 1802. There is, however, an older Gillena Adans.* 

 named for the same person and properly published, as it was 

 based on Volkameria P. Br.f and Tinus L.J 



*Fam. PI. 2 : 166. 1763. 

 t Hist. Jam. 214. 1756. 

 ISyst. loio. 1759. [Ed. 10.] 



