RYDBERG: NOTES ON ROSACEAE 55 
each tooth usually ending in a distinct gland. In the South it is 
more common than R. carolina, but extends as far north as 
central New York and Wisconsin. It is the same as R. parviflora 
glandulosa Crépin, and also as his var. setigera, at least in part. 
19. Rosa NITIDA Willd. 
This is well understood. It is distributed from Newfoundland 
to Massachusetts, near the coast, and has likewise been collected 
in Connecticut. 
20. RosA BICKNELLII Rydberg 
This species is probably most closely related to R. virginiana 
but differs in the smaller and less numerous flowers, the obovoid 
fruit acute at the base, the smaller, thinner, and not shining 
leaflets. It may be the same as R. acuminata Raf., but the 
leaflets are by no means ‘“‘acuminate,’’ and the distribution, as 
far as known, is quite different. The following specimens belong 
to it: 
Nova Scotia: Purchell’s Cove, Halifax Harbor, Howe & Lang. 
MASSACHUSETTS: Coscati and Wauwinet, Nantucket Island, 
and Chappaquiddick Island, Bicknell. 
New York: Long Beach, East Rockaway and Lawrence, 
Long Island, Bicknell; Lone Hill and Peconic River, N. Taylor. 
VI. CINNAMOMIAE 
Infrastipular prickles not present; branches unarmed or 
bristly, not prickly. 
Inflorescence corymbose, terminating the stem; plant 
more or less suffruticose; stem very bristly, mostly 
dying back to the ground in the winter; leaflets 
usually 9-11. 
Leaves glabrous or nearly so. 
Leaves densely pubescent, especially beneath. 
Inflorescence of solitary or few corymbose flowers ending 
lateral branches; plant shrubby; leaflets usually 
5 or 7 (or 9 on the new shoots only). 
21. R. arkansana. 
22. R. suffulta. 
Leaflets comparatively thin, neither rugose nor 
strongly reticulate; branches and prickles 
: cee! a A llincnia 
es Sie eC ee = = ’ 
acute at the base, with a distinct neck at th 
top. 
23. R. acicularis. 
