48 
ON THE CULTIVATION OF SARRACENIADS. 
last, and is perhaps not so easy to manage. The flowers are elevated on larger stalks, 
are of a darker crimson colour, and the leaves more like those of S.flava in form; 
but beautifully veined with crimson veins. It is a native of Georgia and Florida, and is 
probably confined to the southern United States. It was originally introduced in 1786, 
and has been called S. psittacina ; but it would appear from recent observers, that this is 
a very different plant. 
S. variolaris is not unlike flava in habit ; but is at once distinguished from that 
species by its smaller size ; spreading, not dependent petals ; and the diaphanous spotting 
at the upper part of the back of the tube of the leaf. It is a native of the open swamps of 
North Carolina and Florida, where it grows in sandy soil. The flowers are geenish yellow. 
It is the 8. adunca of Smith's Exot. Bot., and was introduced in 1803. 
Although the whole of these are found inhabiting the low swamps of North America, 
they do not thrive in the open air in Britain generally ; there have, however, been instances 
in which they have grown well for a time in such situations. They are found to do best in 
a frame placed in a w 7 arm and shaded situation, or in a shady part of the stove, where the 
heat is not very strong. 
All the species should be planted in pots, filled with pieces of peat at the bottom upon 
the drainage, and sphagnum at the top, with the pots placed in pans of water ; they also do 
very well planted in moss, without pots, in a frame ; but either way they must be kept 
moist, and quite shaded. Our plants at Chatsworth are potted as directed, and stand in 
pans of water, near the glass, on the east side of the large conservatory, where they grow 
freely, and flower every season profusely, during the months of June and July. In winter, 
when the plant is in a state of torpidity, a less quantity of moisture is requisite. 
The generic name was given by Tourneforte, in honour of Dr. Sarrazin, a French 
physician, resident in Quebec, who sent this genus to him from Canada. 
Heliamphora nutans is the only species known of this new and singular genus. It 
was discovered by Mr. Schomburgk on the mountain of Roraima, on the borders of British 
Guiana, where it grew in a marshy savannah, at an elevation of about six thousand feet 
above the level of the sea. 
The habit, roots, pitchers, and general structure, are the same as in Sarracenia ; but the 
scape of Heliamphora , instead of being single-flowered as in Sarracenia, bears a loose 
raceme of from two to six nodding flowers, borne on short pedicels. The floral organs 
differ chiefly from those of Sarracenia in the great reduction in the number of parts. 
Instead of three distinct series of floral envelops, Heliamphora has but four, five, or six 
leaflets altogether, of which the external are somewhat thicker and more herbaceous than 
the more internal ones, though all are, to a certain degree, petaloid and coloured. The 
stamens are indefinite, and placed as in Sarracenia ; the ovary is only three celled instead 
of five ; in other respects, the number, arrangement, and structure of the ovules agree with 
Sarracenia. The style is erect and cylindrical, and has no tendency to that remarkable 
foliaceous expansion observable in the Sarracenia. 
The name is derived from helos , a marsh, and amphoreus, a pitcher. 
The only method at present practised to increase these plants, is division of their roots. 
