RYDBERG: NOTES ON ROSACEAE 83 
to three achenes are developed, it remains so even at maturity, 
but if more achenes develop the fruit becomes pear-shaped or 
globose. The form of the fruit is, therefore, no specific character. 
R. apiculata Greene and R. piscatoria are forms of this species. 
The former will be discussed in a subsequent paper. The latter 
represents a strong more bristly form of R. prionota. 
Rosa prionota is more common in California than the typical 
R. gymnocarpa. 
33. ROSA DASYPODA Greene, Leaflets 2: 260. 1912 
This is perhaps a good species. I had segregated out the same 
as such, although I had assigned as the type a Californian specimen 
which shows the characters better than Dr. Greene’s type. The 
flowers are nearly always corymbose, i. e., two to four together and 
leafy-bracted, the leaflets thicker and not with semi-pellucid veins, 
the teeth broader and more rounded, and the fruit is larger, 6-8 
mm. instead of 4-6 mm. in diameter. 
It ranges from British Columbia to northern California, where 
it is represented by the following specimens: 
CALIFORNIA: Siskiyou County, waaay: [Baker’s distribution - 
number] 3874. 
34. Rosa BripcEsiI Crépin, Bull. Soc. Bot. Belg. 15:54. 1876 
This is a good species and is the same as R. gymnocarpa pubes- 
cens S. Wats.* and R. crenulata Greene.t Crépin gave this species 
a short description, but later, after seeing Watson’s treatment of 
the same, retracted and reduced it to a variety. I was a little 
doubtful whether the name R. Bridgesii belonged to this species 
or to R. sonomensis or to some related species, but Miss Eastwood, 
who has seen the type of R. Bridgesii, has told me that it is the 
same as R. gymnocarpa pubescens S. Wats. The following speci- 
mens have been seen from California: 
CauiForNiA: Bridges 95; Pine Ridge, Fresno County, Chandler 
171; Baker 5500; Silver Mountain Pass, Brewer 1915; Havelock, 
Kern County, Grinnell 217; Tuolumne Big Trees, 1911, Abrams 
4701; Shut Eye Pass, 1912, 4928; Yosemite Park, 1915, 5407. 
* Bot. Calif. 1: 187. 1876. 
+ Leaflets 2: 255. 1912. 
