708 
THE GARDENERS’ 
CHRONICLE. 
[Jan 
with a genus of fungi called Diplocladium 
(fig. 103), and 95 in future, be called the Diplo- 
Tomato fungus, which 
T 
gelatinous examined under the micro- 
pe, it is seen to consist of myriads * 
crescent-shaped spores as shown in fig 
a represent the conidia of the second or 
rium stage of the fungus. 
t the mycelium that has produced the 
Diplocladium and Fusarium stages of the fungus in 
The resting-spore 
on the hyphæ W in the tissues of the decaying 
d plants before the een s are formed, 
sufficient to simply pull up the diseas 
all the rootlets should be removed, as t 
parts first attacked by the dency and en 
contain the most matured hypbæ, and being sur- 
rounded by soil, the usual conidial stages are not 
produced, consequently the resting-spores are deve- 
loped in greater quantities than in the above-ground 
parts of the 
It is somewhat remarkable, and contrary to the 
general rule, that the conidia of tbe rapidly matur- 
ing summer phases of the fungus—Diploel adium and 
Fasarium—whcse W rege is to effect the spread of 
the fungus, should 
tissues of the Tomato, “but 
producing the Fusarium, the hyphæ finally — 
resting spores in the soil, the Fastin conidia giving 
origin to its like and resting- spores on the hyphe; 
thus both es, after extending their area during 
the summer months, in producing resting- 
spores in the soil, which renew a cycle of develop- 
and attacking young Tomatos 
formation 
specime 
on decaying Tomator, but was not at that time con- 
nected with a 
From what has been said, it will have been 
ethane ae r the 
only condition of the fungus capable of attacking the 
Tomato; hence the characteristics of sl aa sense 
drooping of the leaves in succession fro e base 
of the plant upwards, and the . of the 
wood in the root— horoughly 
R . 
quick-lime, which =e any mycelium or resting- 
spores left i 
Spraying w with a ag ota is of no avail, as the 
roots are tacked, and the parasite is internal, 
As much lime as the plants will allow should be 
mixed with the soil in which! Tomatos are grown, 
re especially if the plants are grown during 
Ms sireenit . da e beds. If the plants 
in a house are badly eee, all the soil should be 
removed, es the walls, &c., sterilised by applying 
a wash o 
Fin ree: a infected soil removed from a bed 
should not be thrown out at random, but should be 
sterilised by mixing with quicklime, otherwise the 
resting · spores present might find some other suitable 
nd unexpected 
centre for t he 
figures are magnified 450 times. G. Massee 
NOTES. 
Tux Rocxery IX May.—To those interested in 
hardy species of plants sistas for planting o 
rockeries, a visit paid to the Royal Gardens ‘uring 
KEW 
instructive and of much interest. Mention of a few 
of the most striking features that I saw there recently 
may enable some readers of the Gardeners’ Chronicle 
to add a few notable plants to their present collec- 
tion of these plants, there is such an advantage in 
looking over the rockery at Kew as compared with 
ardens in the matter of names, the 
10 many other 
lants being so 1 la 
might be supposed, the Saxifrage family is 
many interesting species were 
are fully 1 foot high; the petals are of a dull white, 
with minute pink spots on each of the five petals, 
S. Cotyledon, with its handsome . — raceme of 
white flowers on footstalks 1 to 14 foot high, is a 
very effective plant; £ 8. altissima is of tall growth, 
attractive ness; S. cuneifolia subintegra is inter- 
esting; S. hypnoides (Eve’s cushion), where low 
golden-yellow foliage of Lamium maculatum um 
formed a striking object, be N 
although generally regarded as a somewhat common 
i here, well worthy of a place ona 
R. grandifolius with its single 
flowers of a rich yellow colour, was 3 feet high. 
mass of blood-red foliage, 1 foot in height, revealed 
Polygonum spzrostachyum. Symphyand ri 
resemblance to Canterbury Bells in the 
shape of its flowers; its height is about 9 inches, 
and the mauve- purple coloured flowers are produced 
80 as orm a mass. Mertensia sibirica, reach- 
ing 15 inches high, with its pale blue ni vag is 
decidedly showy subject. Chrysogonum vir- 
ginianum, with flowers of orange-yellow rl set 
on petioles 1 h, was „ as 
seen in a mass, iums are capital zu 
for the rockery, especially 7. with foliage richly 
Nica Var ere acranthum and E. 
e former growi g 6 prain high, and the 
red a “ids higher, and very showy with ite golden- 
tched leaves edged with dull red. Spi wa 
thie t urea produces a rich patch of 99 
in the midst of pe i en by its lea 
Geum miniatu ving orange-red atin ta on stalks 
1} foot ee is a —— plant. Especially varied in 
the colour of the flowers was a group of Primula 
japonica hed seg one of the damper parts of 
the rockery. P. involucrata, pare white, with 
flower- stems 1 foot in height, was likewise a con- 
spicaous object. 
its pure white flowers, 
growing but 4 inches high, has the foliage of an 
Arenaria, a capital plant where low or 
is a ee „ 
e counterpart 
habit se Aeg a" wal of re 
‘ni * of n latter, which is pure y! 
form howy effective group. Hel 
N is a bene wing rock 
flowers. Campanula excisa 
thick mass, alikonga at one time 
thought not to be hardy. Cheirsath 
with its bronze-yellow flowers 
xiana, a Candian 
is just the plant for suspending over a p 
its dense evergreen leaves 
effective setting for the pure white flowers, As 
the habit of growth is dwarfer. 
of the dwarfest species, and plants of it 
smothered with rich yellow coloured b 
it an effective plant for the rosia 4 
Visitor, 
TREES AND ù T 
ROSA SPINOSISSIMA SIMA Vas A 1 
merely of the Scotch Rose, R. i 
that species it differs chiefly in habit, be 
stronger growth, and inste an 
bushy form of the ordinary Scotch Rose, 
atout sucker-growths toa some D 
feet. 8 it may lose in 
in freedom grace, f 
beautifulof allthe earlier flowering single: 15 
is a group of plants in the 
ing several square 5 ards, all of which bes” 
crowded with add and make & 5 
picture. The bloss are from 2 The 
and of slightly e yore: 
those of the Scotch Rose, are 
re but are much larger, and * 
een, ak mirable 
m an ad 
the flowers. Like nearly all the 
Roses, this only flowers once dur 
Somme Van Hore 
the 
both of which are of hybrid 
these is now out of flower, — 
in fall beauty. It was raised 
— 8. 3 Seager 
Ht 
whilst it differing paghe 2 Mt may be e. 
