66 RyDBERG: NOTES ON ROSACEAE—XIV 
arkansanoides. All these names are superfluous, however, for 
the plant is the same as R. suffulia Greene. Besides these names 
several varietal names have been proposed. R. dulcissima 
Lunell is apparently based on a more luxuriant and less bristly 
form of this species. 
13. ROSA ALCEA Greene 
This species stands somewhat in the same relationship to 
R. suffulta as R. Lunellhii does to R. arkansana. The plant 
is described as having prickly hypanthium, but this is not 
always the case. The upper part of the plant, especially the 
upper stipules and the bracts, are densely glandular, the glands 
often extend to the pedicels and hypanthium, the stalks of the 
glands sometimes become indurate and hence the hypanthium 
is prickly in fruit. This is sometimes also the case in R. suffulta, 
which form was described as R. pratincola setulosa by Cockerell. 
SASKATCHEWAN: Milk River Ridge, 1895, Macoun 10541; 
Moose Jaw, Spreadboro 10625; also Macoun 10539; Regina 1903, 
Fowler; Indian Head, z; Prince Albert, Macoun 12767 (?). 
SoutH Daxota: Deadwood, Carr ro. 
14. Rosa ConyuNcTA Rydberg 
This is related to R. suffulta and R. subglabra on the one 
hand, and to R. virginiana on the other. It differs from the 
Jast in the lack of glandular hairs on the hypanthium; in the 
pale green leaves with sharper toothing; in the absence of 
infrastipular spines; and in the insertion of the achenes, which 
is on the inside walls as well as in the bottom of the hypanthium. 
From R. subglauca it differs in the leaves pubescent beneath 
and in the reflexed sepals. It resembles R. suffulta in habit and 
pubescence, but the leaflets are more acute at the apex and 
cuneate at the base and glaucous, and the sepals are reflexed 
or spreading after anthesis. As the plant has been confused 
with R. suffulta and R. arkansana, this latter character caused 
the error in Britton’s Manual, in which R. arkansana (which 
then included R. suffulta) was described as having spreading 
sepals. I am responsible for the error. R. conjuncta might be 
a hybrid of R. suffulta and R. Lyoni or some other species of the 
Carolina group, but none of the species of that group or of the 
Cinnamomea group (except the high northern R. subglauca) has 
