June 3, 1905. 
bf the lower leaves, the cuttings should be in¬ 
serted firmly in sandy soil in pots and covered 
w ith a bell-glass in the greenhouse until 
tooted. The after treatment of young plants 
consists merely in giving a slightly larger pot 
when this becomes necessary, and this may 
proceed year by year until the plants are in 
t he largest pots permissible. Considering that 
the plants have to stand so long in the same 
pots, the drainage should bo very carefully 
placed each time, but especially in the largest- 
sized pot. The illustration shows simply a 
branch or spray taken from a pot-grown plant. 
A. Garden-raised Orchid (Odontoglossum 
mirificum). 
For many years Orchid growers were of 
opinion that hybrids could not bo produced 
between species of Odontoglossums, but more 
recently it has been proved that they hjbiidise 
freely, even when crossed artificially. iManj 
supposed natural hybrids bad been introduced, 
and, although the parents could readily be 
guessed, gardeners continued to wonder why 
they should not respond to artificial crossing 
under cultivation. After all, it lias merely 
been proved that it was a question of raising 
the seedling rather than the production of 
good seed that was at fault. 
At first the seeds were sown on pots or pans 
of soil prepared in the usual way, and which 
was supposed to be suitable for Orchids. The 
i seed did not, however, give rise to seedlings, 
and it was supposed that the seed was oad, 
whereas the gardener had not then understood 
the requirements of seedling Odontoglossums. 
In order to get the seeds of this particular 
group of Orchids to germinate freely, they 
must bo sown on the top of pots n vsr.ich. 
plants of their own kind are already growing. 
This would mean that the microscopic organ- 
1 isms which assist, the roots in collecting food 
are absent from the pots of soil specially pre¬ 
pared. 
After the old plants have been growing a 
little time in pots, tlie organisms which assist 
the roots have had time to establish themselves 
and multiply. The seedling Orchids have 
more particular need of this assistance than 
the old plants, because they have not yet a 
reserve of food in their own structures upon 
which they can fall back until a fresh supply 
can be produced. Since gardeners have un¬ 
derstood this fact, a large number of garden- 
raised Odontoglossums have been reared, 
flowered, and brought before the public. 
The seed parent of O. mirificum was 0. 
luteo-purpureum sceptrum, and the popular 
i 0. crispum supplied the pollen, usually 
spoken of as pollinia because the pollen grains 
are fixed together in masses, instead of being 
like loose powder or dust, as in Roses, Pop¬ 
pies, or Crocuses. 
The seed parent is naturally a small- 
flowered variety, but very compact and cir¬ 
cular, owing to the shortness of the overlap¬ 
ping sepals and petals. The progeny named 
0. mirificum has derived its size and splendid 
colour from the pollen parents. As will be 
seen by the illustration, the sepals have three 
or four from which purple-chocolate blotches 
often unite together in one or two masses on a 
white ground. The petals are also white with 
a group of smaller circular brownish-purple 
spots over the centre. The • lip is much 
fringed and pale yellow with a large horse¬ 
shoe-shaped, rich brown blotch in front of tire 
crest. 'It will thus be seen that the colours 
consist of a combination of those of the two- 
parents, and the yellow lip more particularly 
suggests the seed parent as named above, in 
having a yellow ground colour. It was raised 
at Oakwood, Wylam-on-Tyne. 
THE GARDENING WORLD 
The Large Wood Lily (Trillium 
grandiflorum). 
Of llio numerous species of Wood Lily that 
have been introduced from time to time, that 
under notice is certainly the best for general 
cultivation. Several other's are well worth 
growing, but they are subsidiary to the large- 
flowered Wood Lily in ornamental effect. The 
three petals are of snowy whiteness and equal 
in number the various other parts of the plant, 
as the uninitiated may be interested to learn 
when they come to examine a live specimen. 
Besides the root and short stem, the plant 
consists of three leaves, three sepals, three 
petals, three plus three stamens, and three 
carpels, constituting the seed vessel in the 
centre. 
The plant is perfectly hardy, and, as the 
name would suggest, a slightly shaded situa¬ 
tion is best for it in the warmer and drier 
parts of the British Isles. The soil may con¬ 
sist cf peat or loam and leaf mould with a good 
percentage of sand. The soil is really a 
matter of secondary consideration provided a 
cool and moist medium can be provided for 
the plant. 
In the northern part of Britain, where the 
atmosphere is relatively cool and moist 
throughout the summer, this splendid Wood 
Lily will grow in the open border in a sandy 
soil without any special preparation beyond 
what is given to herbaceous plants in general. 
When once established, the plant flowers 
freely year after year, and if a cool situation 
is selected for it in the south, either on the 
rockery or any other part of the garden, pro¬ 
vided the soil is naturally moist and cool with 
the aid of a little shade, there is no difficulty 
in growing it in the warmest part of the island. 
The illustration shows plants in a pot, but 
that was merely to enable them to be placed 
in a cool house during the time they were in 
flower. 
A Garden-raised Rhododendron 
(R. Luscombei). 
The parents of this garden hybrid were R. 
Fortune! and R. Thomsoni, the former being 
the seed-parent. A very large proportion of 
the finest hardy Rhododendrons are really 
garden-raised hybrids, the greater portion of 
them being from R. ponticum and R. cataw- 
biense. 
To understand the beauty of the hybrid 
under notice, it would be well to make allusion 
to the parents. R. Fortunei is a native of 
China and has drooping fragrant pale rosy 
flowers of bell shape and large size. Indeed 
they vary from 3 in. to 5g in. in diameter. R. 
Thomsoni conies from the Himalayas and pro¬ 
duces six or eight large flowers in a truss, 
these flowers being deep blood-red with a 
smooth and glossy lustre and spotted at the 
base of the upper segments. 
The garden hybrid under notice is inter¬ 
mediate between the parents in its various 
characters. By referring to our illustration 
it will be seen that it makes a large spreading 
bush furnished with oval leaves of large size. 
The flowers are produced in large trusses, and 
both in size and their drooping habit recall 
the influence of R. Fortunei. The individual 
flowers are amongst the largest to be seen 
amongst hardy Rhododendrons growing in the 
open air, and are cf a beautiful rose or sliell- 
pink, with a group of red spots at the base of 
the upper segments. In all these characters 
the habit quite departs in general appearance 
from the habits of R. ponticum. 
Our illustration was taken towards the end 
of April in the Rhododendron Dell at Kew. 
where an old plant has developed splendid 
proportions. Some of the Himalayan hybrids 
46f 
may be seen flowering there quite early in ti- 
year, but they are liabie to be overtaken by 
severe frost, whereas the cultivator can depend 
more upon having this one in full beauty 
owing to its flowering more near the time wb-n 
the climate can be depended ujxni in this 
country. 
Those who would succeed with large- 
flowered Rhododendrons of this type should 
select a position that is sheltered from strong 
wind from any quarter. The immense size of 
the flowers necessitates shelter in this way, 
and usually it can be secured by planting in 
open spaces amongst trees. Light and air are 
necessities, but situations can be selected 
where the bushes will not be overhung by trees 
in any way though sheltered by them. In the 
size of its flowers, this hybrid in a measure 
recalls Pink Pcwrl. For the illustration of 
this Rhododendron see page 453. 
A Rose Garden. 
(See Supplement.) 
There is practically no limit to the effect? 
which may be produced in a Rose garden, as 
it depends so much upon the size of the 
garden, its situation and surroundings, ant 
the ingenuity and taste displayed by the cultj 
vator as well as planter. 
Our supplementary illustration this week 
represents the Rose garden of the late Spencer 
Charrington, Esq. In the foreground a rustic 
fence may he noticed, over which Roses have 
been trained, but have not yet had time to 
entirely cover their supports. The principal 
feature, however, is the arch of rambler 
Roses, showing what may be done not only 
with the Crimson Rambler, but with various 
other Roses of climbing or rambling habit that 
flower freely and may be used in this way. 
Besides being put up in the form of arches, 
they could also be grown against pillars con¬ 
nected by iron chains after the style of an 
Italian Rose garden. In this case the Roses 
are planted against supporting pillars, trained 
to the top of the latter, and then trained 
along the chains as they grow. When two 
neighbouring Roses have met very flue effects 
are produced. It may be here pointed out 
that Roses on chains would produce an arch 
of a different kind to that shown in the 
picture, as the chains droop in the middle, 
making practically a counterpart to the arch 
shown. 
Much might he said with regard to this 
style of growing Roses, but not the least 
interest would attach to the effect produced 
by looking through these arches into a Rose 
garden or on to an open grassy space pro¬ 
tected, as in this instance, by a hedge with » 
background of evergreen and deciduous trees. 
It will be seen that borders have been utilised 
for the planting of bush and standard Roses, 
while immediately through the arch are some 
pillars covered with climbing or rambler Roses. 
This is merely one of many examples which 
we hope to present our readers with in the 
future, showing what effects and amount of 
variety may be produced by Roses in conjunc¬ 
tion with other subjects forming the frame¬ 
work or surroundings, as they may be termed. 
The Sxowhall-teee is now in the height of 
its glory, and is one of the most handsome 
subjects in the garden or pleasure grounds. 
The native wild form has the large flowers con¬ 
fined to the outer margin of the truss, but 
in the sterile form or Snowball-tree all the 
flowers are enlarged and white. 
