| 
. 
: 
ROSACE. 195 
A very prickly plant, with more numerous gland-tipped sete 
than the other Rubi ceesii. Professor Babington states that the 
prickles of R. tuberculatus are from an oblong tuberculiform or 
oval cushion-shaped base; while in R. altheeifolius they are from 
an oblong compressed base; and he also states that the foliage of 
the latter has a pale glaucous tint not found in the latter. In both 
forms the larger prickles have proportionately longer bases than 
the smaller ones. Both occur with ternate leaves and have the 
leaflets on the barren stem generally hairy only on the veins, 
while the ternate leaves of the flowering-shoot seem to be always 
felted beneath. Professor Babington has not stated in the fifth 
edition of the Manual what he now considers «, 6, y of his 
former KR. nemorosus. 
Tubercular Bramble. 
Sup-Srecies XLI.—Rubus ceesius. Linn. 
Prate CCCCLVI. 
Bab. Man. Brit. Bot. ed. v. 
Barren stem prostrate, glaucous, sub-glabrous or sparingly 
hairy; prickles numerous, very small, unequal, weak, deflexed, 
rather long, from a compressed base; aciculi and setze few. Leaves 
ternate, with the lateral leaflets entire, or more rarely 2-cleft, or 
rarely pinnate, from the terminal leaflet being divided into 3; 
leaflets thin, green on both sides, uneven above, paler and more 
or less hairy or even slightly felted beneath, often lobed, doubly 
or unequally serrate; terminal leaflet ovate or rhomboidal-ovate, 
sometimes 3-lobed; lateral leaflets not overlapping the terminal 
one. Flowers in a nearly simple often small and sub-corymbose 
panicle, with the pedicels usually rather long. Jachis and 
peduncles thinly felted with short hairs, and more or less numerous 
aciculi, sete, and slender declining prickles. Sepals ovate-lan- 
ceolate, with aciculi and gland-tipped sete, applied to the fruit, 
which is covered with a glaucous bloom, and is composed of a few 
large drupes. 
“a, agrestis. 
R. cesius, a aquaticus and f agrestis, W. & VW. Rubi Germ. PI. xuvu. a. 
“Stem very slender; prickles few, small. Leaflets flat, lobate- 
serrate, rather pilose on both sides; terminal leaflet rhomboidal- 
ovate, acuminate, rounded below. Panicle often nearly simple, 
or its branches rarely more than once divided, but often very 
long. 
