August ro, 1907. 
THE GARDENING WORLD 
THE ORANGE 
533 
% 
Primula cockburniana. 
[Maclarcn and Sons. 
arnations were Miss Maud Sullivan, 
trs. Robert Morton, Cecilia, Miss Wil- 
iot, Lady Hermione, and Glowworm. 
Mr. A. F. Dutton, Bucks, also had a 
roup of border and American Carna- 
ons. 
Mr. S. Mortimer, Row-ledge, Farnham, 
urrey, staged Enchantress, Harry Fenn, 
Lady Bountiful, and other American Car¬ 
nations. 
Messrs. William Cutbush and Son, 
Highgate, London, had an extensive 
group of Malmaison and border Carna¬ 
tions set up in three half pyramidal 
mounds, all connected in one group by 
Carnations and fine foliaged plants. 
[Maclarcn and Sons. 
The Round-leaved Rest-harrow (Ononis rotundifolia). 
Primula 
(Primula cockburniana.) 
The leaves of this new species are some¬ 
what similar to those of P. cortusoides, 
and the habit of the plant is similar to 
that of P. japonica on a small scale. The 
flower stems rise up to a height of 9 in. 
to 12 in., and bear about three whorls of 
flowers one above the other. The corolla 
is of a rich orange similar to the rays of 
the orange Hawkweed, and quite unique 
amongst Primulas as far as colour is con¬ 
cerned. It was collected in Western 
China by Mr. Wilson, who is now again 
in China collecting for the New York 
Botanic Garden. Our photograph was 
taken in the Alpine House at Kew during 
the fourth week of May. 
It is too early yet to deal upon the har¬ 
diness of this species, as it is still rare, 
and most of the plants we have seen have 
been grown in cold frames or cool houses. 
The stems are so densely mealy, as well 
as the outer parts of the flow'er, that they 
would be liable to get damaged in the 
open air in such a season as the past dur¬ 
ing May and June. It may, however, prove 
quite hardy and give satisfactory' results 
when grown upon a rockery. Time is 
necessary, however, for experiments to be 
made to prove its hardiness. 
Like most other Primulas, it will grow' 
in a compost of equal portions of good 
fibrous loam and leaf-mould, to w'hich 
some sand is added to ensure free drain¬ 
age. While making its growth it delights 
in a free supply of moisture, so that pots 
should always be well drained. After it 
has passed out of flower water should still 
be given while the leaves are healthy and 
green. Most Primulas make their best 
growth after the flowers are over, in pre¬ 
paration for next season's u'ork. They 
should, therefore, be w'ell looked after, 
although they cease to be ornamental. 
-f+4- 
THE ROUND-LEAVED 
Hest - harrow. 
Two or three species of Rest-harrow are 
natives to this country, and even they 
have pretty flowers, especially the upright 
habited one, when it flowers profusely. 
Some of the Continental ones have 
much larger flowers than ours, and are, 
therefore, more conspicuous as well as 
being pretty. One of the finest of these 
coming under our notice is Ononis ro¬ 
tundifolia, of which the accompanying il¬ 
lustration will give an idea. It is of up¬ 
right habit of growth, but rarely much 
exceeding 12 in. in height. It com¬ 
mences flowering some time in June, and 
continues to bloom most of the summer. 
Each stalk bears three rose-coloured, 
pea-shaped flow’ers, so that a well-fur¬ 
nished plant has a handsome appearance. 
The leaflets are roundish, hence the 
name. They make a beautiful setting 
for the flowers, being broader than in 
most other species of Ononis. 
