. 
BICKNELL: FERNS AND FLOWERING PLANTS OF NANTUCKET 129 
7-foliolate; middle pair of leaflets mostly narrowed and entire 
towards the base, often rhombic-lanceolate and subfalcately at- 
tenuate; basal leaflets narrowly oblong, often much deflexed; 
flowering branchlets often numerous, or clustered, thinly spreading- 
pubescent, unarmed or with a few small prickles, their leaflets 
oblong to narrowly lanceolate-attenuate, openly dentate with 
rather coarse acute teeth to appressed-serrate; inflorescence a few- 
flowered corymbose raceme, either short and terminal or the flowers 
descending in the axils of the trifoliolate leaves, commonly bracted 
with one or two.oblong or lanceolate unifoliate leaves; pedicels 
very slender, erectly ascending, mostly 2-6 cm. long, loosely 
pubescent, unarmed or with a few minute prickles; calyx lobes 
ovate-oblong, herbaceous-apiculate to short-caudate, often softly 
appressed-pubescent; flowers medium-sized; petals narrowly 
oblong to obovate-oblong, 1-2 cm. long; fruit ovoid or subglo- 
bose, of medium size, the drupelets sparsely pilose. 
Frequent about patches of low thickety growth in dry open 
places. First flowers June 7, 1908, June 9, 1909; last flowers June 
26, 1910. 
* RUBUS FLAGELLARIS X PROCUMBENS. 
Prostrate and long-trailing; stems branching towards the end 
and rooting at the tip, rather coarse, soft, greenish and subherba- 
ceous, terete, in great part unarmed but here and there bearing 
scattered, very short, broad-based and decurved, rather blunt 
prickles; primary leaves large, trifoliolate, on glabrate or thinly 
pubescent petioles, which are 5~7 cm. long and armed with scat- 
tered decurved prickles; leaflets very broad, becoming 8 cm. wide 
and 8-10 cm. long, the odd one orbicular or orbicular-obovate, 
rounded or abruptly narrowed to the base, short-acuminate at the 
apex, on a petiolule 2-3 cm. long; lateral leaflets mostly cuneate- 
obovate, often inequilateral and somewhat lobed on the lower 
margin, subsessile or on short petiolules; leaflets all coarsely and 
acutely dentate or irregularly cut-dentate, the teeth fewer and 
passing into appressed serratures towards the entire base; upper 
surface hispidulous, the lower surface minutely pubescent; flower- 
ing branchlets often clustered, 10-20 cm. long, green and herba- 
ceous, striate, glabrate or puberulent, unarmed; inflorescence an 
irregular long-pediceled, racemose cyme; peduncles often rather 
stout and clavate above, puberulent, unarmed, the lower axillary 
from trifoliolate leaves, the upper often subtended by one or more 
unifoliate bracts; leaflets of the flowering branchlets mostly 
cuneate-obovate and deeply and irregularly serrate-dentate or 
laciniate; calyx lobes somewhat villous-pubescent, slender-caudate ; 
