JOURNAL OF HORTICULTURE AND COTTAGE GARDENER. 
[ July 31, 1890. 
92 
it was the opinion of the Committee that it was far too serious a matter, 
-and they were unanimous in counselling instant destruction of every¬ 
thing growing in the house. The following process was suggested and 
will be carried out at once:—1, Syringing the whole of the interior of 
the fabric as well as the ground and Vines with water, then to burn 
sulphur, the presence of the water being desirable in order to absorb the 
sulphurous acid gas ; this process is to be repeated. 2, To burn every 
part of every plant as well as to calcine the soil thoroughly. 3, To 
remove and burn all rotten or defective wood that may be in the house; 
and lastly, 4, to have the whole of the woodwork well scraped and 
repainted. It is hoped that these suggestions will be useful and followed 
out elsewhere should the phylloxera appear in other gardens. 
Vines, Atrophied Foliage of. —Mr. Morris showed specimens of a very 
common condition of Vines, several occurring in the house above men¬ 
tioned, in which the lateral shoots were dwarfed, the leaves being only 
about an inch across. It has been a source of great trouble to Vine 
growers for many years. Dr. M. Ward undertook to examine into the 
-c luse. 
Tomatoes Diseased. —Mr. Morris showed specimens from the gardens 
at Chiswick attacked by Phytopthora. As this appears to infect the 
Tomatoes when growing in the open, it is suggested that whenever 
possible they should be at once transferred indoors to a warmer and 
drier atmosphere, Tomatoes requiring a warmer climate than the average 
English summer to ripen properly. This treatment appears to invigorate 
them, and renders them not only less susceptible to the disease, but has 
"been known to check the further growth of the fungus at once. 
Hetercecismal Fungi.— The following communication was received 
'from Mr. Plowright, accompanied by specimens :— 
Puccinia Festucce , n. sp.— This species occurs on Festuca ovina and 
E. duriuscula. The tecidiospores occur on the common Honeysuckle. 
After a long series of unsuccessful cultures upon various grasses and 
other plants, extending over a period of eight years, I was this 
year induced to try the effect of placing the spores of iEcidium peri- 
clymeni on Festuca duriuscula and ovina. In both cultures the Uredo 
was produced. I also succeeded in producing the iEcidium on Lonicera 
periclymenum from the germinating teleutospores. The last named are 
in shape somewhat similar to those of P. coronata, with which species 
they have previously been confounded. The material from which the 
iEcidium was produced is on the table, as well as the artificially pro¬ 
duced uredospores and the accidiospores from which they were pro¬ 
duced. 
Puccinia Agrostidis, n. sp. —The eecidiospores of this species have 
long been known under the name of AH. Aquilegias. Mr. J. H. A. Jenner 
was kind enough last August to conduct me to a secluded spot in 
Abbott Wood, near Lewes, where he had for several years previously 
found the .Ecidium on the wild Columbine. We carefully examined 
the grasses in the vicinity, and came to the conclusion that the teleuto¬ 
spores probably occurred on Agrostis alba. Material was brought 
home to Lynn, and from it this year the HScidium was produced on 
Aquilegia vulgaris. In May of this year Mr. H. T. Soppitt conducted 
me to a spot on the east shore of Lake Windermere where the iEcidium 
Aquilegim occurs. Specimens were obtained from which both Mr. 
Soppett and myself produced the uredospores on Agrostis alba and vul¬ 
garis. The material used for these cultures is on the table. 
Puccinia Digraphidis, Soppitt.—Mr. Soppitt’s discovery that the 
iEcidium on Lily of the Valley is connected with a Puccinia on 
Phalaris arundinacea is very interesting—the more so when we remember 
that this Grass is known to be the host plant of several other Puccinias— 
viz., P. sessilis, which has its mcidiospores on Allium ursinum, P. Pha- 
laridis—which has its recidiospores on Arum, P. maculatum, and a form 
of P. coronata—the life-history of which is at present uncertain. The 
Lily of the Valley, on which I produced the AUcidium from P. Digra¬ 
phidis, has been growing in my garden at King’s Lynn since the year 
1879, and has hitherto been free from any iEcidium ; but eight days 
after the germinating recidiospores of P. Digraphidis were applied to it 
’the Lily leaves began to show signs of the presence of the parasite, which 
in due course developed into the perfect iEcidium. This culture was 
done at the request of Mr. Soppitt, in order that his discovery of host 
plant bearing the teleutospores of the Lily of the Valley iEcidium might 
be confirmed by an independent observer. The iEcidium produced and 
the material used for producing it are on the table. 
Uromyces maritima, Row.—The life history of the iEcidium on 
Olaux maritima was unknown until the present year. In August last 
Mr. Peake, jun., of Hull, was kind enough to conduct me to only 
known British locality for this iEcidium—on the banks of the Humber. 
From an examination of the surrounding plants I came to the con¬ 
clusion that the iEcidium on Glaux was due to the Uromyces on Scirpus 
maritimus. A supply of the Uromyces was collected, and this spring 
applied to Glaux maritima in my garden at King’s Lynn. In due 
-course the recidiospores were produced ; these in turn were applied to 
healthy plants of Scirpus maritimus and the Uredo produced. The 
specimens used in their culture are exhibited. 
JEcidium on Black Currant Leaves. —This funcus was found by my 
-friend the Rev. Canon Du Port, on the Norfolk Broads, in June, 1890. 
Its life history is at present unknown, although I have visited the spot, 
-and hope to be able to work it out from material collected. Whether it 
be the s ime species as occurs on Gooseberry pretty commonly in various 
parts of the country experimental research alone can determine. 
Melampsora vernalis on Saxifraga granulata. —This fungus, which 
is doubtless the teleutospore form of the so-called Creoma Saxifragre, 
was found by Mr. James Taylor of Clarkfarquhar, is also exhibited. 
Melampsora on Salix repens .—The uredospores of this were this year 
produced on a plant of S. repens, that has been growing for three or four 
years in my garden, by applying to it the spores of Cseoma Orchidis. 
It is, probably a distinct and undescribed species, as no effect was 
produced on S. caprea and viminalis by the Cseoma spores. C. Orchidis 
has been the subject of many cultures made by me during the past nine 
years. The infecting material and the uredo produced are exhibited. 
Potato Disease .—It would be highly desirable if some simple experi¬ 
ments could be conducted this year. The long-continued rains will 
doubtless induce the disease, and as such experiments could very easily 
be made it seems a pity the opportunity should be let slip. The effect 
of high moulding of alternate rows of some variety fairly suspeetible is 
all that is required to show the protective influence of an efficient earth 
covering on the tubers ; but the recent experiments in France and in 
America showing how powerful are the restraining influence of copper 
dressings applied to the foliage of the plants upon the development of 
the Phytophthora certainly ought to be tried. Now that we know the 
mycelium of the Phytopthora is localised, and that it does not extend 
“ down the stems and along the roots,” it is obvious that the spread of the 
disease takes place only by the enormously prodigious production of the 
conidia, hence it follows that any agent which can arrest this develop¬ 
ment, and also sterilise such conidia as may alight upon the healthy 
foliage, must have a powerful influence for good in checking the spread 
of the disease. The power that copper dressings have limiting the spread 
of the Peronospora on the Vine has been known in France for many 
years.” A vote of thanks was given to Mr. Plowright for his valuable 
communication. 
In accordance with Mr. Plowright’s suggestion a sub-Committee was 
appointed consisting of Dr. M. T. Masters, Mr. C. B. Plowright, and 
Rev. G. Henslow (with power to add to their number) to carry out 
investigations at Chiswick upon the value of high-moulding, as well as 
of the use of sulphate of copper and sulphate of iron in preventing or 
arresting the Potato disease. Dr. Masters reminded the Committee that 
most valuable results were almost accidentally obtained in 1888, when 
of two rows most deplorably attacked by Phytopthora one was earthed 
up with but little hope of its being any use to protect the tubers. The 
results, however, were most astonishing, as follows* :—“ Out of fifty 
tubers taken from the row moulded in the ordinary way thirteen were 
found diseased, or 26 per cent. Out of fifty taken from the high- 
moulded row five only were noted as diseased, or 10 per cent. Subse¬ 
quently twenty-five tubers from each row were put aside for future 
examination. Of the twenty-five taken from the row earthed up in the 
usual way thirteen were diseased and twelve sound. Of the twenty- 
five taken from the row earthed up in the Jenseniau manner on August 
10th, when the haulms of both rows appeared to be equally rotten 
wdth disease, all che tubers were sound.” 
Events of the Week. —To-day (Thursday) the Royal Horticul¬ 
tural Society’s Floral Committee will meet in the Chiswick Gardens at 
2 p.m. On Friday, August 1st, the B. S. Williams Memorial Committee 
meet in the offices of the Gardeners’ Benevolent Institution, 50, Parlia¬ 
ment Street, Westminster ; and the Gardeners’ Orphan Fund Committee 
meet at the Horticultural Club, Hotel Windsor, at 6 p.m. on the same 
day. On Saturday, August 2nd, the Southampton Show will open, 
continuing until Monday night. On Tuesday, August 5th, the Leicester 
Summer Show will be held in the Abbey Park ; and the British Fruit 
Growers’ Association will hold a Conference in the Show ground on the 
same day, James Ellis, Esq., M.P., in the chair. 
- The Weather. —In the Metropolitan district the weather has 
been much more settled and favourable during the past week than we 
have had for some time. Many have taken advantage of the first oppor¬ 
tunity to get in their hay. Flower beds and borders are brightening up 
a little, and it seems possible that a glimpse of summer may now be 
obtained. 
-A meeting of the British Fruit Growers’ Association 
was held last Thursday in the Horticultural Club room, T. Francis 
Rivers, Esq., in the chair. ‘The principal business was concluding 
arrangements for the Conferences at Leicester, the Crystal Palace, and 
Brighton, on August 5th, September 5th, and September 11th 
respectively. It was stated that the Exhibition at Leicester is expected 
to be a large one, and with fine weather the attendance is always good, 
* From “ Gardeners’ Chronicle,” Nov. 17th, 18S8, page 572. 
