500 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
Novelties in War-time. By Hortulus (Le Jard. vol. xxx. p. 36; 2 figs.). — 
Lemoine has brought out the following new plants : Hydrangea hortensis ' Etin- 
celant,' ' Satinette,' and ' Trophee.' All bear beautiful heads of flower. ' Etin- 
celant ' is brilliant carmine, ' Satinette' is bright satin carmine, and ' Trophee' is 
deep carmine, probably the deepest red of all the Hydrangeas. 
Philadelphus ' Girandole ' is not so large as P. ' Virginal,' but excels it in 
shape and in the beauty of its milk-white flowers. 
P. ' Fleur de neige ' resembles P. grandiflorus ; the shrub is covered with pure 
white semi-double flowers. P. ' Coupe d'argent ' bears immense white flowers 
with a pleasant odour. — S. E. W. 
Novelties in War-time. By M. Houssy (Le Jard. vol. xxx. pp. 352, 353; 
3 figs.). — ' Le Poilu ' is a hybrid rose with Wichuraiana Mossu and Muscosa 
japonica for parents. It forms a robust shrub with hairy branches ; the 
peduncles, sepals, and ovaries are very mossy. The large flowers are borne in 
clusters ; they are double and of a good shape. Their colour is satin rose, changing 
to lilac-pink. The dwarf polyantha rose ' La Marne ' is the offspring of ' Madame 
Norbert Lavasseur ' and ' Comtesse de Cayla.' The dark-green glossy foliage 
is disease-proof. The flowers are semi-double, the petals are pale pink at the 
base and bright salmon-pink at the tips. This rose is very floriferous ; the 
flowers appear early and may last for a month, changing from bright pink to pale 
pink and finally to white. 
The chrysanthemum ' Victoire de la Marne ' is of dwarf habit and very 
floriferous. The flowers are of good shape and are bright red in colour, like a 
geranium. 
The peach ' Franco-espagnole ' bears large fruit of excellent flavour, which is 
ripe in mid August. 
The strawberry ' Erige de Poitou ' is a vigorous grower. Its fruit is held 
well above the soil. 
The pear ' Beurre d'Avril ' is vigorous and fertile. The fruit is ready in 
March ; it is sweet and of good flavour. 
Syringa Sweginzowi, from Central China, is very floriferous. In June it is 
covered with flesh-coloured sweet-scented flowers. 
Alyssum maritimum compactum lilacinumis easily raised from seed. In June 
it is covered. with sweet-scented lilac-coloured flowers. It flowers again in 
August or September, and continues to do so until cut down by the frost. 
5. E. W. 
Nursery Stock, Dusting for Control of Leaf Diseases. By V. B. Stewart 
(U.S.A. Exp. Stn., Cornell, Civc. 32, Jan. 1916). — Based on results in Bull. 369 
of this station ; see these Abstracts : Apples, Dusting and Spraving Experiments 
with. — F. J. C. 
Nursery Stock, Some Important Leaf Diseases of. By V. B. Stewart (U.S.A. 
Exp. Stn., Cornell, Bull. 358, April 1915, pp. 165-226; 28 figs.). — This bulletin 
gives a general account of the life-history, symptoms, and control measures 
for the commoner fungoid diseases, causing leaf-spot in various fruit trees. 
The list includes apple and pear scab (Venturia inaequalis and V. pirina) ; 
apple powdery mildew (Podosphaera leucotricha) ; yellow leaf-disease of the 
cherry and plum (Cylindrosporium Padi) ; powdery mildew of the cherry (Podo- 
sphaera Oxyacanthae) ; Anthracnose of currants and gooseberries (Pseudopeziza 
Ribis) ; Septoria leaf-spot in currants and gooseberries (Septoria Ribis) ; the 
gooseberry mildew (Sphaerotheca mors-uvae) ; leaf-blotch of horse-chestnut 
(Lae stadia A esculi) ; peach leaf-curl (Exoascus deformans); leaf-blight of pear 
and quince (Fabraea maculata) ; Septoria leaf-spot of pear (Mycosphaerella 
sentina) ; black-spot of rose (Actinonema Rosae) ; and rose and peach mildew 
(Sphaerotheca pannosa). — A. B. 
Oenothera gigas, nanella, A Mendelian Mutant. By Dr. Hugo De Vries 
(Bot. Gaz. lx. p. 337) . — The author's object was to " show that the dwarf character 
which in so many instances complies with the formulas of Mendel, but behaves 
in a different way in crosses of the derivatives of 0. Lamarckiana, may, at least 
in one instance in this group, follow that law as exactly as in any other pure 
Mendelian case." 
The author first gives a table of ten seed-bearers, derived from "some good 
biennial specimens of the third generation." Of the ten plants, one had 2 
dwarfs ; four had only 1 ; four had o, while one had 34, giving 17-8 per cent. 
In another table, of 9 offspring of biennials, six had o ; one had 1 ; while one 
had 25, and another 19, these two giving 15-7 and 15*0 respectively per cent. 
