BOTANICAL EXCHANGE CLUB, 
15 
Warwicksliii’e plant. I am of Professor Babingtoii’s opinion, and 
regard li. Ba(jnalli as essentially the same as the Plymouth 
Brujgsii, and would, moreover, lump them together as a variety 
under/asc•o-rt^^!/■. — T. Pi. A. B. 
Ruhus pyramidali'i, Bab., “ off the type." Exposed hedge, near 
Calstock Church, E. Cornwall, September 12, 1876. Quite a 
common woodland species about Plymouth ; occurring in numerous 
places in both Devon and Cornwall. — T. Pi. A. B. I do not see 
that this is ‘ off the type,’ for I have seen plenty like it in N, Wales, 
It is very interesting to find that the plant is so abundant near 
Plymouth. — C. C. Babington. 
H. ccenius, Linn,, ‘ a. wiihrosuft,’ Prof. Babington. — St. Devereux, 
Herefordshire, August 22, 1876. — Augustin Ley. 
Ilosa involiita, Sm., (form of). Near Alstonfield, Staft’ordshire, 
July 10, 1876, &c. Said by Baker to be a hitherto undescribed 
form, having perfectly naked peduncles and calyx-tube, whereas 
Smith describes his plant as aboumhng in setie. The plant rarely 
flowers, and I had not obtained well-formed fruits until last season. 
W. H. PURCHAS. 
II. kibe mica, Sm., var. Crrovesii, Baker. Barnes Common, 
Surrey, 1875-76. — H. & J. Groves. Mr. Baker has cLawn up the 
following description of this hitherto-undescribed Kose, and for- 
warded it for insertion here : — EosiE hibernica, var. (h-ocesn, Baker. 
An erect compact bush, from 3 to 5 feet in height. Prickles of the 
barren stem more slender and less hooked than in canimi, -|-in. 
long, with a scar f-in. long, passing down by gradual transitions 
into a few subulate, straight, slightly- declining aciculi, none of 
which are gland-tipped. Leaves of the barren shoot 3-4 in. long, 
glaucous, glabrous ; stipules glabrous, Avith a few glands on the 
edge; common petiole with 4-6 minute aciculi, none of Avhich are 
gland-tipped ; leaflets oblong, f-lj in. long, sharply, h-regidarly, 
but not distinctly, doubly dentate ; teeth rarely gland-tip])ed ; end 
leaflets 1-1^ in. long, in. broad, broadly rounded at the base. 
Flowers (1-3) usually solitary; peduncle naked, in. long; 
calyx-tube broad oblong, naked; segments -J— | in. long, naked on 
the back, with a distinct leafy point, some simple, some sparingly 
i)innate. Corolla milk-white, 18-21 lines across when expanded; 
petals an inch long. Styles densely pilose. Fruit broad ovoid, 
in. long, turning colour at the end of August, deep crimson - 
red, the spreading sepals fully persistent, still remaining attached 
in October. Connects hihemica ylahra Avith canina, A’-ars. mh-cristata, 
Sc/iultzvi, and Hailstoni.—J. G. Baker. 
II. inoUissijila, Willd., b. cccrulra, Woods. Currie, Edinburgh, 
August 24, 1876. Perhaps not fully Avliat Mr. Baker limits the 
name to, but I think very near Avhat Woods meant. — F. M. Webb. 
11. moUvisima, forma. BetAveen Burntisland and Aberdour, Fife. 
September 10th, 1876. — F. M. Webb. A remarkable form of this 
Piose, having the mature fruits ovate rather than globular, the 
primordial someAvhat narrowed into the peduncle. The Kev. 
A. Ley sends a less extreme, but someAvhat similar, form from 
a “ hedge, Llanthony, Monmouthshire, August 29, 1876,” and 
