60 RyDBERG: NOTES ON ROSACEAE 
29. Rosa WILLIAMsII Fernald 
30. ROSA JOHANNENSIS Fernald 
This and the preceding species have been discussed by their 
author,* and nothing more needs to be added. 
31. ROSA SPINOSISSIMA L. 
This is the earliest name for the Cinnamon Rose. Linnaeus 
probably included in the original description two different species, 
or at least cited also synonyms belonging to R. pimpinellifolhia. 
Many authors have applied the name R. spinosissima to the 
latter species. It is evident that Linnaeus principally had in 
mind a native rose of Sweden, which could be none but the Cin- 
namon Rose. 
Crépinf has shown that the original Rosa cinnamomea L., 
of the first edition of the Species Plantarum, which was based 
wholly on a plant from Switzerland and described by Haller and 
Bauhin, is the same as R. pendulina L. In the first edition 
Linnaeus gives as a synonym under R. cinnamomea, “Rosa 
sylvestris, odoratissimo rubro flore. Bauh. pin. 483.’’ Under 
the same name, in the second edition, he cited, ‘‘Rosa, odore 
cinnamomi, simplex. Bauh. pin. 483," which shows that R. cin- 
namomea L. of the first edition was not the same as that of the 
second. The first was evidently what in the tenth edition of his 
Systema and in the second edition of his Species Plantarum is 
called R. alpina, which is the same as R. pendulina L. 
The R. cinnamomea of the second edition is the plant usually 
known under that name. As stated before, the oldest name of this 
is evidently R. spinosissima L. Not that that name should be 
entirely equivalent to R. cinmnamomea of the second edition, for 
Linnaeus evidently had two species confused. He gave two 
references under it, one to his Flora Suecica and the other to 
Bauhin’s Pinax. The latter may well be R. spinosissima as usually 
understood, i.e, a form of R. pimpinellifolia; but the former 
must be something else. R. pimpinellifolia is not found, even as 
an escape, in the part of Sweden where Linnaeus reported his R. 
spinosissima. In his Flora Suecica, he gave the vernacular name 
* Rhodora 20: 94,95. 1918. 
ft Bull. Herb. Boiss. §: 135-138: 1897. 
