BICKNELL: FERNS AND FLOWERING PLANTS OF NANTUCKET 451 
As compared with Rosa virginiana typical examples of this 
associated rose differ in their more slender, straighter, and longer 
infrastipular spines and less numerous prickles; numerous often 
crowded leaves, smaller and narrower more membranous stipules 
and leaflets, the latter more narrowed to the base and finely serrate 
with very acute teeth, dark green and shining above, pale or lighter 
green beneath; flowers fewer and less clustered, commonly I-3, 
not large, spreading about 5 cm., the petals deeply emarginate; 
fruit lighter red, more or less pyriform, or tapering into the 
peduncle, contracted or narrowed to a smaller orifice and with 
thicker walls; calyx lobes densely glandular, often much elongated, 
narrow, in fruit often widely ascending or suberect, commonly 
lobed much as in Rosa humilis. 
*ROSA CINNAMOMEA L. 
Several scattered plants along an old field south of the town, 
June 12, 1908, just in flower. 
RosA RUBIGINOSA L. ; 
First observed in 1904, a clump over five feet high in an old 
field north of the town, where it must have been established for 
many years; fence corner west of the town; two clusters in a 
field southwest of Millbrook Swamp (1908); a single bush on the 
county fair grounds (1909). 
*Rosa ruUGOSA Thunb. 
Straying energetically from cultivation and sometimes ap- 
pearing far from planted-grounds. A single plant by the roadside 
north of the town, first observed in September 1899, had become a 
conspicuous growth in 1904. Up to that time this rose had not 
been noticed elsewhere outside of cultivation exeept in a neglected 
lot above the “Cliff,” where it had long been established and where 
it has spread extensively in recent years. In 1908 it had sprung 
up in several places by fence borders in the neighborhood of the 
town and was observed on the bluff at Siasconset. The following 
year single clusters were found at Shawkemo and at as remote and 
desolate a spot as among the sand dunes in the southwestern ex- 
tremity of the island. An even more remote station was the sandy 
shore of Tuckernuck, where a fine cluster in full flower was ob- 
served on June 17, 1911. In 1910 an isolated patch flowered in a 
meadow below the “Cliff.” First flowers June 1, 1909, June 3, 1911. 
