258 OBSERVATIONS ON THE CULTURE, &c. OF THE GENUS ISOPOGON. 
1816, but was afterwards lost, and was re-introduced some seven years back through a 
gentleman in the neighbourhood of Hull. It is a plant of very considerable beauty, 
producing blue and white flowers, and when well grown is a very remarkable and 
rich-looking plant. We have had plants which produced leaves two feet long and 
proportionately broad, and flower-stems four feet high; and when in bloom they 
were very remarkable objects. These were grown in stove-heat, and very rapidly j 
but, as has been remarked previously, the leaves soon became shabby when kept in 
a lower temperature. 
This plant requires the same treatment as to temperature as S. arbor ea , and the 
same soil and potting. A nice healthy plant at this season will make an exhibition 
specimen by July, and will continue to bloom until the autumn. It is not 
advisable to permit the plants to produce flowers until they are thoroughly 
established in twelve or thirteen-inch pots, and then they will produce a splendid 
head of bloom. After the flowers get shabby, the stem must be removed, and 
through the winter the plants should be kept in the temperature of the inter- 
mediate house. 
This species is propagated, but not very freely, by the side branches, treating! 
them in the same manner as 8. arbor ea. It also produces suckers occasionally 
from the lower part of the stem ; and some of the strong roots, if they are severed ! 
from the parent plant and turned up'* in the way of a cutting, will generally 
produce a shoot, and may then be removed from the pot, of course protecting them 
until they are thoroughly established. 
(To be continued.) 
OBSERVATIONS ON THE CULTURE &c. OF THE GENUS 
ISOPOGON. 
This genus belongs to the diversified order of Proteads (Proteacea). All the 
species are handsome evergreen shrubs, with a stiff neat habit of growth, all natives 
of Australasia. About twenty kinds have been introduced ; all are very desirable in 
unique collections of plants. 
The following descriptions and selection of those most ornamental will be of 
service, especially where only a few can be allowed to be cultivated. 
I. anemonefolius . — This was the first species brought to this country, being intro- 
duced so long since as 1791. It is a pretty plant of dwarf growth, and produces its 
yellow flowers freely during the summer months, during which time it may be 
placed out of doors, but it requires the shelter of a greenhouse in winter. — A native 
of New Holland. 
I. anethifolius was introduced in 1796, and is found, generally, in old collections 
of plants ; its flowers are pale rose-colour, rather showy ; the plant grows to about five 
or six feet high. — A native of New Holland. 
