RYDBERG: NOTES ON ROSACEAE 69 
Old World and are represented in this country by a few intro- 
duced species. 
1. ROSA RUBIGINOSA L. Mant. 2: 564. 1771 
The sweet brier is often cultivated and has escaped in many 
places in this country. In some parts of the eastern United States 
it is thoroughly naturalized. On the western coast it has estab- 
lished itself in several places in Oregon and Washington, but the 
writer has seen herbarium specimens only from one place in 
California. On account of its stout prickles it has been confused 
with R. nutkana, to which it has no close relationship. 
CALIFORNIA: Yreka, 1910, Geo. D. Butler 1427, 1802. 
II. CINNAMOMIAE. This group is represented in Cali- 
fornia and Nevada only by species of the true Cinnamomiae, 
i. €., species with infrastipular spines usually present. 
2. ROSA NUTKANA Presl, Epim. Bot. 203. 1849 
Although an easily distinguished species, except from the next 
two species, it has been mistaken for R. fraxinifolia Borkh. (i. e., 
R. blanda Ait.) and R. Woodsii Lindl. It has also been named 
R. caryocarpa Dougl. and R. Lyalliana Crépin, but these names 
have not been published except in synonymy. R. aleutensis 
Crepin is probably an unarmed form of this species. R. nutkana 
is distributed from Alaska to northern Wyoming and Oregon. 
It has also been reported from northern California, but the writer 
has no definite locality cited. Perhaps the record is based on 
specimens belonging to either of the next two species. 
3. ROSA MURICULATA Greene, Leaflets 2: 263. I912 
This species is closely related to R. nutkana and perhaps not 
specifically distinct. It differs in the thicker and smaller leaves 
densely glandular-muricate beneath and in the often corymbose 
inflorescence. It ranges from British Columbia to northern 
California. . 
Cattrornia: Mad River, Humboldt County, 1878, Violet 
Rattan; Arcata, Humboldt County, 1899, Dudley. 
