566 
THE GARDENING WORLD. 
May 8, 1897 
portions can be entirely removed they should be 
burnt forthwith as soon as observed. Severe and 
untimely pruning should be avoided. The trees 
should be encouraged to ripen their wood early by 
means at the gardener's command. The soil should 
be well-cultivated and well fertilised to encourage a 
healthy and vigorous growth to enable the trees to 
grow out of the disease, as gardeners term it. 
Erysiphe Tuckeri—Most cultivators of Grapes 
are more or less familiar with the mildew or disease 
of Vines. Many recognise it under the name of 
Odium Tuckeri; but science now makes it out to be 
merely a stage of a fungus to which the name 
Erysiphe is given. The malady is more prevalent 
and destructive in the vineyards of France and 
Spain than it is in this country. It belongs to the 
same order as the Maple Mould, the latter being 
black and the former white or gray. The mildew of 
Vines is by far the more destructive of the two, and 
should be vigorously kept in check by means of flowers 
of sulphur or something containing a large percentage 
of sulphur in its composition. Although the Vine 
mildew is so common and widely distributed.it has 
never been known to produce sporocarps as a result 
of fertilisation. 
Podosphaeria pannosa.—This fungus produces 
the mildew of Roses and allied plants. It is one of 
the simplest of the family to which it belongs, and 
produces a web-like white felt that rapidly spreads 
over the surface of the leaves of its host plants. 
Sooner or later the hyphae produce specialised 
cells—the antheridium and carpogonium, which are 
functionally equivalent to the stamens and pistils of 
flowering plants. When climate and temperature 
favour this mildew, it is difficult to cope with, par¬ 
ticularly in the open air, where atmospheric condi¬ 
tions are not so well under control. The carpo¬ 
gonium divides into two cells, one of which becomes 
an ascus or sack containing eight ascospores. 
Sulphur is a good remedy owing to the iact that the 
mycelial threads live on the surface of the leaf. 
- ——- 
PLANTS RECENTLY CERTIFICATED, 
The undermentioned awards were made by the 
Royal Horticultural Society on the 27th ult. 
Orchid Committee. 
Odontoglossum crispum Hkliotropijjm, Nov. var. 
—The flowers of this beautiful variety are of medium 
size, with broad, well imbricated segments. The 
sepals and ovate, toothed petals are of a deep rose, 
ornamented with a cluster of crimson spots on the 
centre of each. The lip is small and white, with a 
large yellow disc, and a few small spots in front of 
the crest. The rich rose hue of the flowers is the 
most striking feature of this grand variety which 
ranks amongst the best of the species. First-class 
Certificate. R, Brooman White, Esq., Arddaroch, 
Gaerlochhead, N.B. 
Odontoglossum excellens Lowae, Nov. var. 
—In this we have one of the finest varieties of O. 
excellens, which is a natural hybrid. The sepals 
are golden-yellow with a few large, dark chestnut 
blotches distributed all over the surface. The petals 
have more numerous, but smaller spots, and a white 
area towards the base. The lip is white with a few 
large blotches in front of the yellow crest. Alto¬ 
gether it is a richly coloured variety. Award of 
Merit. Messrs. Hugh Low & Co., Upper Clapton, 
N E. 
Flora' Committee. 
Rhododendr in rlperbissimum. —The leathery 
leaves of this h\ L..J are elliptic, woolly at the edges 
and beneath, and 2 in. to 2\ in. long. The flowers 
are 4 in. to 5 in. in diameter, wide open, and white, 
with a cluster of greenish-yellow spots at the base 
of the upper segment. They are borne in clusters at 
the apex of the shoots; and the plant is dwarf, 
branching and bushy. First-class Certificate. 
Messrs. J. Veitch & Sons, Ltd., Chelsea. 
Lomaria ciliata grandis. —An Award of Merit 
was accorded to this handsome variety on the 9th of 
March last, and having been brought before the 
committee again it was accorded a First-class Certi¬ 
ficate. The fronds are of great breadth and 
infinitely superior to those of the type which used 
to be cherished in collections twenty to thirty years 
ago. The fertile fronds are nearly erect, with 
narrow pinnae, but the barren ones are drooping. 
with very broad pinnae. Mr. H. B. May, Dyson’s 
Lane Nursery, Upper Edmonton. 
Lomaria ciliata major. —The fronds of this 
variety are similarly broad as those of the above 
named ; but both the fertile and barren ones are much 
more spreading, so that the plant presents a dwarfer 
appearance. Award of Merit. Mr. H. B. May. 
Alkanna tinctoria.— This is the true Alkaoet, 
being much used for colouring oils, wax, wines, &c. 
in the south of France, where it is grown for the 
purpose. It was introduced to this country in 1596, 
and is recorded in various books under the came of 
ADchusa tinctoria. It has various other names, in¬ 
cluding Lithospermum tinctorium, under which it 
was shown by J. T. Bennett Poe, Esq. (gardener Mr. 
Downes). It is perennial, and hardy, with stems 
about 9 in. to a foot high, and linear-lanceolate, 
gray, hairy leaves. The flowers have been recorded 
as white, purple, and purple-blue, no doubt being 
variable, especially under cultivation. Those of the 
plant shown were bright sky-blue and very pretty. 
It is figured in Reichenbach’s Flora Germanica, 
XVIII, t., 1,316 under the name of Alkanna 
tinctoria. Award of Merit. 
Primula Trailli. — This is closely allied to P. 
involucrata, of which it may be considered a form 
with larger, drooping white flowers, and a faint tint 
of lilac externally. The leaves are oblong, dark 
green, smooth and almost remind us of the leaves of 
Rumex acetosa. It is one of the prettiest of hardy 
Primulas, a native of the Himlayas, and a valuable 
acquisition for rockwork or even pot culture. Award 
of Merit. G. F. Wilson, Esq., F.R.S., Weybridge 
and Wisley. 
Tropaeolum Mrs. Sanderson. —The flowers of 
this beddiDg variety are of a rich maroon-crimson, 
and produced in great profusion. The leaves are of 
a much lighter green than those of the well known 
Empress of India. A little group of plants in pots 
and which had been grown in a greenhouse, was 
shown by Mrs. Sanderson (gardener, Mr. J. R. 
Wood), The Mount, Ealing, W. As a bedding plant, 
it flowers as profusely, remains dwarf, and owing to 
the greenness of the foliage is quite distinct from 
the well-known, dark variety above named. Award 
of Merit. 
Auricula Fred Knighton. —The flowers of this 
alpine variety are of large size and produced in large 
trusses. The large eye is golden-yellow, and the 
ground colour maroon fading to a purple-red margin. 
The flowers are handsome and produced in large 
trusses. Award of Merit. Mr. R. Dean, Ranelagh 
Road, Ealing, W. 
Morus alba pendula.— This is a weeping variety 
of the White Mulberry, and requires to be grafted 
on upright stems so as to display the gracefully 
drooping habit of the branches. The leaves are 
lobsd and quite distinct from those of the Black 
Mulberry (Morus nigra). Award of Merit. Messrs. 
Paul & Son, Cheshunt. 
Fruit and Vegetable Committee. 
Tomato Royal Windsor. —The fruits of this 
variety are of medium size, slightly flattened, 
golden-yellow and more or less heavily flushed with 
orange, particularly on the top. Award of Merit. 
Mr. Owen Thomas, The Royal Gardens, Frogmore, 
Windsor. 
Apple Hillier’s Easter Orange.— This re¬ 
sembles a small Cellini in shape. The skin is yellow, 
more or less suffused with red and striped with a 
deeper hue on the exposed side. The variety keeps 
well, but the flesh is now getting soft, and of course 
is past its best. As a dessert Apple it would seem 
to be of some considerable value. Award of Merit. 
Messrs. Hillier & Son, Winchester. 
The undermentioned Dwarf or French Beans have 
been grown in pots in the gardens of the Royal 
Horticultural Society, at Chiswick, in order to test 
their suitability for early forcing. They are only six 
out of a large number of sorts which have been 
grown on trial, and each of the six had the Award of 
Merit, given at Chiswick, confirmed at the meeting 
on the 27th ult. 
Ne Plus Ultra. —The pods of this variety are 
4 in. to 5 in. long, shapely, and smooth; and the 
variety is in every way worthy of extended culture 
for forcing and early use, on account of its proflic 
character, earliness, and the flavour of the pods. 
Messrs J. Veitch & Sons, Ltd., Chelsea ; and Messrs. 
Watkins & SimpsoD, Exeter Street, Strand. 
Osborn's Forcing. — The pods are broader, if 
anything, than those of Ne Plus Ultra, and more 
straight, but similar in length. Messrs. Damman 
& Co., Naples, Italy; and Messrs. Watkins & 
Simpson. 
Mohawk Improved. —This is a longer-podded 
variety than either of the above, also broader and 
smooth. It is highly suitable for early work, and 
might be more often used. Earl Percy (gardener, 
Mr. Geo Wythes), Syon House, Brentford. 
Emperor William.— The pods in this instance 
are almost as broad as those of a Scarlet Runner, 
and rather undulated in outline. But though it will 
be of no service for exhibition purposes, it is very 
early, bulks well, and will be serviceable on that 
account when it becomes better known. Ernest 
Benary, Erfurt, Germany. 
Golden Wax Pod — The pods in this instance are 
6 in. long, and broad in proportion. As forced they 
are smooth, light yellow, and sometimes tinted with 
green. It is therefore very distinct, and is of 
excellent quality. Messrs. Barr & Sons, 12 and 13, 
KiDg Street, Covent Garden. 
Veitch's Early Favouritb. —The p:ds of this 
variety are long, fleshy, very tender, and delicate in 
flavour. The plant is dwarf, very early, and prolific. 
Messrs. J. Veitch & Sons, Ltd. 
Narcissus Committee. 
Narcissus Niad.— This is a very beautiful hybrid 
between N. poeticus and N. triandrus, and is inter¬ 
mediate between the two. The segments are while, 
resembling those of N. poeticus. The cup is very 
shallow, wide open, and of a charming and delicate 
lemon of the palest shade. It is well worthy of 
being included in collections. First-class Certificate. 
Rev. G. H. Engleheart, Appleshaw, Andover. 
-- 
VEGETABLE CALENDAR. 
A careful examination of the early sown seed beds 
of all the Brassicas will be necessary to detect 
failures ; and where the stock of young plants is not 
equal to the requirements, fresh sowings should be 
made without delay. Any plants strong enough for 
transplanting should be pricked out 2 or 3 ins. apart 
on firm ground. This will keep the plants stocky, 
and greatly increase the fibrous roots, which will be 
found a great advantage when the plants are moved 
into their permanent quarters. Weeds should be re¬ 
moved by hand in their earliest stages of growth, in 
all seed beds sown broadcast, and in the cas^ of 
Onions and other crops sown in rows the surface 
between the rows should frequently be stirred with 
the hoe, to promote quick growth. 
Peas. —Two or three liberal sowings of the best 
Marrow varieties should be made during the next 
month or six weeks, to ensure a full supply during 
the hottest part of the summer. These mid-season 
sowings will give the best results when sown in 
trenches, prepared with a liberal allowance of well- 
rotted duog mixed with the soil in the bottom of 
the trench, making the whole firm with slight 
treading Draw drills at least 6 ins. wide, and sow 
thinly at this season, otherwise the plants will 
spindle away, and be in the worst possible condition 
to stand against a trying spell of hot dry weather. 
All crops advancing should be staked before there is 
danger of the plants falling on one side in the rows, 
as this often induces a fresh growth from thebottomof 
the stems and is detrimental to a full crop on the prin¬ 
cipal growths. When the earliest are in pod, liberal 
supplies of liquid manure will be of great assistance 
during dry weather, in prolonging and adding to the 
weight of the crop. 
Cauliflower. —A sowing of these at the present 
time, and another a month hence, will ensure a 
supply of plants for filling up vacancies in the 
vegetable quarters, and an abundant crop during the 
autumn months. Every encouragement should le 
given the earliest crop to form good htads. These 
will stand strong doses of liquid manure, and there 
is nothing more stimulating for this crop than nitrate 
of soda. A few applications of this manure at 
intervals will add much to the size of the heads. 
Another stcck of young plants should row be in con¬ 
dition for transplanting to succeed the autumn sown 
plants. These may be planted between rows of Peas 
or other crops that will give a slight shade ; but 
wherever planted at this season the ground should 
be rich and deep. 
Leeks. —Another sowing should be made for a 
late crop. A somewhat shaded position will be an 
