BICKNELL: FERNS AND FLOWERING PLANTS OF NANTUCKET 117 
widely branched, the branches declined or trailing; prickles usually 
numerous, hard, rigid, slenderly very acute, straight or somewhat 
petioles and petiolules; primary leaves ascending, their petioles 
often 7-10 cm. long, 5-foliolate except low on the stem; leaflets 
usually rather light green, of firm texture, lanceolate-oblong to 
elliptic or more or less rhombic, often narrowly cuneate at the base, 
acute to narrowly acuminate at the apex, frequently subcondupli- 
cate, the terminal one often broader and somewhat rounded at 
the base ona stalk 1-3 cm. long; lateral leaflets on petiolules 5—15 
mm. long, or rarely subsessile; upper surface of the leaflets sparsely 
appressed-pubescent to glabrate, the lower surface appressed- 
puberulent with silvery hairs; marginal pattern finely and acutely 
serrate or serrulate or sometimes more deeply and irregularly ser- 
rate, the teeth firm and very acute; flowering branchlets pubescent, 
angled, mostly 5-15 cm. long; inflorescence racemose-subcorym- 
bose, usually bearing from one to several narrow unifoliate leaves; 
pedicels slender, divergent, mostly 1-3 cm. long, pubescent, non- 
glandular, usually bearing slender, somewhat decurved prickles; 
calyx lobes mostly lanceolate with narrow subfoliaceous termina- 
tion, pubescent, often strongly 3-nerved; flowers medium-sized 
to rather large, 2-3.5 cm. broad; petals oblong to obovate-oblong 
narrowed into a claw; fruit medium-sized of rather few juicy 
drupelets. : 
The above description is drawn mainly from specimens col- 
lected in the neighborhood of Hewlett, Long Island, and from 
other well established colonies in low grounds of southwestern 
Long Island, at Lawrence, Woodmere, and Rockville Centre. 
On Nantucket a solitary plant only was met with. It was strongly 
established and trailing widely at the foot of the railroad embank- 
ment near the second mile, where it was in flower on June 19, 
1908, and June 23, 1910, and bore ripe fruit on August 7, 1906. 
This plant is of more prostrate habit than any example observed 
on Long Island, and differs further in its broader, shorter, more 
dentate-serrate leaflets, which are also more pubescent and of 
darker color. 
* RUBUS ARGUTUS X FLAGELLARIS. 
Erect and recurved, ascending, or becoming prostrate and 
trailing, often branched; stems purplish, becoming rigidly flex- 
uous, sometimes terete but commonly angled and striate; prickles 
scattered or numerous, hard, short and stout from a broad base, 
