112 BICKNELL: FERNS AND FLOWERING PLANTS OF NANTUCKET 
tate, purplish glands; flowers 6-16, their pedicels glandular, short, 
slender, spreading or ascending, unarmed or with occasional weak 
prickles; sepals green, lanceolate-attenuate, pubescent and glan- 
dular to glabrate; flowers small, the petals 1~1.5 cm. long, obovoid- 
oblong, sometimes tinged with crimson; fruit small, ovoid or sub- 
globose, of rather small drupelets. 
Met with at only two stations on the borders of low thickets 
near Shawaukemmo Spring. First flowers June 4, 1909; in full 
flower June I1, 1908; young fruit June 26, 1910. 
The form of this plant, here particularly described, is dis- 
tinguished by lanceolate, tapering, sharply denticulate-serrulate 
leaflets and small, narrow racemes, thickly invested with short- 
stipitate glands, unarmed pedicels, and rather small flowers, some- 
times so brightly tinged with crimson as to have the appearance 
of apple blossoms. 
At two places on Nantucket, plants were collected which are 
similar to this plant in general form and leaf shape but differ in 
their villous-pubescent almost non-glandular inflorescence, longer 
pediceled flowers, and sparse armature throughout. Similar 
plants occur on Long Island, in which the subterete purple stems 
are sometimes nearly unarmed and the inflorescence may be with 
or without stipitate glands even on the same specimen. In this 
form the racemes tend to be sessile and appressed along the upper 
part of the stem. Other specimens from Long Island are un- 
mistakably referable to the typical Nantucket plant, even showing 
a tendency to crimson tinted flowers, but often differing by broader, 
more acuminate, and less irregularly cut leaflets. 
* RUBUS ALLEGHENIENSIS X FRONDOSUS. 
Stems of the first year erect, 0.75-1.5 m. high, often bearing 
scattered and deciduous stalked glands, sometimes remaining 
erect the second year, but more often recurving and declined or 
even partly trailing, simple or sparingly branched, purple, smooth, 
often terete or subterete, sometimes very sparsely armed, but com- 
monly bearing remote or scattered, more rarely rather numerous 
prickles; prickles simple often broadened only at the extreme base, 
erect, straight or slightly curved, mostly 4-7 mm. long; primary 
leaves 5-foliolate or the lower 3-foliolate, on slender petioles 6-12 
cm. long; petioles thinly pubescent to villous-tomentulose, bearing 
either scattered or numerous stalked glands; leaflets thin and soft, 
pale green, appressed-pubescent on the upper surface, paler and 
* aor 
