THE JERUSALEM ARTICHOKE. 
319 
It flowers there in November and December. 
G. cerina is perennial, with a branching pros- 
trate stem, and broad obtusely spathulate 
leaves. The flowers are white, and grow in 
leafy panicles at the ends of the shoots. The 
leaves and flowers of this beautiful plant have 
a peculiarly pellucid and waxy appearance. 
It is found near the sea, on rocky islets in 
Rendezvous harbour, Lord Auckland's group. 
Dr. Hooker remarks, in connexion with these 
plants, " that although the species of Gentians 
•are seldom white-flowered, yet these are de- 
cidedly so, with red, or red-purple, at the base 
of the segments of the corolla, and veins 
of the same colour. The pure blue of the 
European species," continues Dr. Hooker, 
" is unknown amongst those of these regions, 
or of the higher latitudes of South Ame- 
rica. Indeed, I think that few genera 
display so full a series of colours in the 
flowers as this does ; red, blue, yellow, and 
white, are all exhibited in it, with many of 
the intermediate compound tints. Yellow and 
white are rare in the regions of the Gentians; 
blue almost invariably present; the red species 
are nearly confined to the Andes of South 
America, and New Zealand." Dr. Jameson 
remarks, that of sixteen species known to him, 
" one-half are red, four purple, two blue, one 
yellow, and one white." 
riNGUICULA OnCHIDIOIDES. 
(Alphonse (/-■ CandoHe.J 
THE ORCHIS-LIKE IIUTTKIIWORT. 
Tins plant, as will be seen from the en- 
graving, is one of very interesting appearance, 
a good deal resembling our native butterworts fn 
general appearance, but far more ornamental. 
It is a perennial plant, having two kinds of 
leaves, which grow in little tufts, in the way 
of an Auricula. Those nearest the ground 
(that is, the outer ones) are small, of an acutely 
ovate figure, and are closely imbricated (that 
is, lying one over the other, like the tiles of a 
roof), resembling little scales. The others, 
which are produced from within the circle of 
these scale-like bodies, are fewer, much larger, 
and are obovate-spathulate, a little concave ; 
they are of a pale glaucous green colour. 
From among the leaves rise the flower-stems, 
or scapes, as they are termed when they rise 
at once from the ground, and bear the flowers 
at the summit. They are from four to five 
inches high, and each bears one handsome 
purple flower, which consists of five nearly 
equal spreadinglobes, with a long curved cylin- 
drical spur. The two upper lobes of the 
corolla are situated close together, forming 
the upper lip of the flower, the three lower 
ones forming the lower lip. The flowers are 
purple, with a whitish throat, marked with a 
few reddish-purple lines. 
Plants of this very pretty little Pinguicula 
were sent by Mr. Repper from the Real del 
Monte, in Mexico, to the Botanic Garden of 
Kew, where they flowered during the latter 
part of the winter of 1845-6. They were 
then kept in the cool stoves, and were growing 
in pots plunged in sphagnum and other 
mosses ; and, treated in this manner, they 
were found to flourish as well as if they had 
been growing on their native mountains in 
Mexico. 
The Pinguiculas have a singular organiza- 
tion, and serve very forcibly to exhibit the 
analogy existing between buds and bulbs. 
During the growing season, they appear like 
ordinary herbaceous plants, the leaves forming 
a little tuft close to the ground. Towards 
autumn, the leaves gradually decay, and small, 
round, leafy buds, about half an inch in dia- 
meter, called hybernaculas, are all that remain, 
until the growing season returns, when new 
leaves and flowers spring forth. They belono- 
to the natural order Lentibularieaj. 
They are all bog plants, and should, there- 
fore, be potted in soil of which chopped moss 
forms a principal ingredient ; the remainder 
may consist of small lumps of peat soil. The 
pots, too, should stand in feeders of water. 
The native ones grow well if kept in frames ; 
and P. orchidioides would certainly succeed 
in a greenhouse, if covered by a hand- 
glass, so as to retain a close atmosphere 
about it. 
THE JERUSALEM ARTICHOKE. 
Tm: Jerusalem Artichoke (HelianthuH tii- 
bero&us) is a native of South America. It is 
