138 
NEW AND RARE PLANTS. 
an additional singular advantage of the present design, which they will not fail 
to observe upon a cursory examination of the plate, — that four ornamental struc- 
tures may be seen from the centre of the trellis- work, while one or more of these 
artificial ornaments may be viewed from every point of the radiating walks. 
NEW AND RARE PLANTS, 
FIGURED IN THE LEADING BOTANICAL PERIODICALS FOR MAY. 
CLASS I. — PLANTS WITH TWO COTYLEDONS (DICOT YLEDONEJE ). 
THE CACTUS TRIBE (Cactacea). , 
Echinocactus eyeriesii ; var. glaucus. Glaucous sweet-scented Porcupine 
Cactus. A very showy, and, apparently, free-flowering plant, which Dr. Lindley 
considers a distinct variety, as it differs from the original species in the more acute 
and less undulating angles of the plant, the spines being more attenuated, and 
rather darker in colour, the tube of the corolla shorter, of a pale green colour, and 
destitute of that remarkable shagginess which is so conspicuous in the old species. 
It may be cultivated in a dry stove, by potting it in poor soil, and watering with 
caution ; increasing tardily by the usual method of cutting off the summit, or more 
readily by seeds, when they can be procured. Bot. Reg. 31. 
THE CATCHFLY TRIBE (Silenacece). 
Dianthus bisignani. Prince Bisignani's Tree Pink. This is an ornamental 
species of Dianthus, of a shrubby character, native of the coasts of Calabria and 
Sicily, where it is found on rocks, and in the fissures of chalk cliffs, near the sea. 
It flowers in the autumnal months in this country, and requires the protection of a 
greenhouse or other structure during the winter, and, indeed, is said to thrive best 
when kept entirely in the greenhouse. Bot. Reg. 29. 
THE FIG WORT TRIBE (Scrophularinece). 
Pentstemon gentianoides. Gentian-like Pentstemon. This beautiful species 
is a native of the cold mountainous districts of Mexico, where it was first observed 
by those eminent naturalists Messrs. Humboldt and Bonpland, 11,500 feet above 
the level of the sea. In the Glasgow Botanic Garden it grew to the astonishing 
height of four feet in the open ground, and was a most attractive object for a great 
length of time. Bot. Mag. 3661. 
THE EPACRIS TRIBE (Epacridece). 
Epacris micropiiylla. Small-leaved Epacris. A very neat and pretty 
species, allied to E. pulchella, and differing from it chiefly in its branches being- 
more slender and erect, the young shoots hairy, and the flowers being collected 
together at the extremities of the shoots. It flowers in the spring, at the same 
time as most of the other species ; and its slender graceful habits, and pretty 
pinkish-white blossoms, render it an interesting little plant. Bot. Mag. 3658. 
