TALL BLACKBERRY. 164 
ing in his lands, although it offers some amends 
for the intrusion by the abundance and fine 
flavour of its fruit. It is commonly called tall or 
high blackberry in distinction from the R. trivia- 
lis or low blackberry, which it greatly resembles 
in the quality of its fruit. It is in flower in June 
and its fruit is ripe in August and September. 
For the generic character, it has a jive-cleft 
calyx ; five petals ; and a compound berry com- 
posed of one-seeded acini.—This species is pubes- 
cent, bristly and prickly, the leaves in threes or 
jives, leafets ovate, acuminate, serrate, pubescent, 
with the petioles prickly ; flowers racemed. 
Class Icosandria, order Polygynia ; natural or- 
orders Senticose, Lin. Rosacee, Juss. 
This shrub has a tall, branching, prickly 
stem, which is more or less furrowed and angu- 
lar. Leaves mostly in threes on a channelled, 
hairy petiole. A few are solitary and some qui- 
nate. Leafets ovate, acuminate, sharply and une- 
qually serrate, covered with scattered hairs above, 
and with a thick soft pubescence underneath. 
The terminal leafet is pedicelled, the two side 
ones sessile. The petiole and back of the mid- 
dle rib‘are commonly armed with short recurved 
prickles. The flowers grow in erect racemes 
with a hairy, prickly stalk. The pedicels are 
21 
