560 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
when an appropriate remedy, and better still a means of prevention, can 
be suggested. 
Fungi claim manv victims in a close-grown spruce crop. For example, 
Trametes radiciperda seems to attack the healthiest and best-developed specimens. 
This fundus is always present in the plantations, and sporophores are freely 
produced in burrows, and on the sides of open drains. The spruce needle-rust 
(Chrysomyxa Abietis) is found in different localities here, but seems confined to 
old . mature trees or stunted suppressed specimens. Alongside one of these 
mature infected spruces a small area was planted two years ago with five different 
species of Picea, but as yet no signs of susceptibility to this fungus have been 
shown. Lophodermium macrosporum is somewhat virulent on the needles of 
a pure spruce crop of thirty-eight years of age. The foliage of individual trees 
becomes quite red, and on shaking the tree the needles fall in showers to the 
ground. On many of the spruce needles the conspicuous black perithecia are 
present. A part of this wood was felled for pit-wood, and this disease was 
alarmingly prevalent. It had been the direct cause of the death of many 
flourishing trees. — A. D. W. 
Foxglove, A Smooth-stemmed Form of the. By Miss E. R. Saunders (Jour, 
Genetics, vol. vii. pp. 215-22S, May 1918). — Two forms of the common foxglove 
are known, both breeding true, the one with hairy grey steins, the other with green 
polished stems, pubescent only among the flowers. The latter form {nudicaulis) 
is donunant when crossed with the former (pubescens), and segregates in a 3:1 
ratio in F. The glabrous form is thus probably the original, and the pubescent 
one has probably mutated from it. The rare occurrence of thickened sepal 
margins with structures resembling rudimentary ovules is noted, and peloria 
and heptandry are noted as inherited independently and both recessive to the 
normal. — F. /. C. 
Fragaria, A Further Note on the Genetics of. Bv C. W. Richardson (Jour. 
Genetics, vol. vii. pp. 167-170; May 191S). — Pink-flowered Fragaria vesca X 
white- flowered gave pink-flowered ; these selfed produced 20 pink, 57 pale pink, 
10 white (including 3 quite white) or nearly so. Double x single (both ways) 
gave singles segregated in about 3 : 1 ratio in F a . Hairy stems and front of leaf 
appeared in Fi virginiana x chiloensis, and in F 9 segregated into a 3 to 1 ratio. 
A few figures with regard to sex inheritance are also given. — F. J. C. 
Garden, The Home, in the South. By H. C. Thompson (U.S.A. Dep. Agr. y 
Farm. Bull. 647, March 20, 1915 ; plates). — A plea for more widespread cultiva- 
tion of green food for their families by the cotton-growing community, for reasons 
of health, pleasure, and even of profit. It contains a body of information for the 
inexperienced on vegetable-growing, and gives a descriptive list of the vegetables 
most suitable and likely to succeed under the local conditions. — M. L. H. 
Gipsy Moth in America, Food Plants of the. By F. H. Mosher (U.S.A. Dep. 
Agr., Bur. Ent., Bull. 250, July 24, 191 5 ; 39pp., 6 plates). — Describes laboratory 
experiments and field observations for the purpose of ascertaining what species 
of trees and shrubs are preferred as food by the gipsy moth. The trees and 
shrubs tested have been arranged in four classes, according to their susceptibility 
to attack. Among forest trees, oaks and birches predominate over miichof the 
area infested, and these are specially susceptible. Among the horticultural crops 
most likely to be affected is the apple. In moderate infestations, arsenate of 
lead (10 lb. to 100 gallons of water) is recommended, applied as soon as the trees 
come into full leaf. — F. G. A* 
Gipsy Moth Work in New England. By A. F. Burgess (U.S.A. Dep. Agr., Bur. 
Ent., Bull. 204, May 21, 1915, 32 pp. ; 5 plates, 6 maps, 3 figs., 5 tables). — Field 
work, consisting of application of hand methods for controlling these insects, 
as well as inspection of plant products from the infested area, is to some extent 
preventing the spread of the gipsy moth, but, on account of the enormous area 
infested, it is impossible to cover much of the woodland. Experimental work, 
including introduction of parasites and natural enemies, together with careful 
studies of the food plants and other factors, has helped materially in decreasing 
the amount of infestation, and will probably become more potent in the future. 
The importance of bringing forest lands into a growth which is unfavourable to 
the development of the gipsy moth cannot be too strongly urged. — F. G. A. 
Gladiolus, Hard Rot Disease of. By L. M. Massey (U.S.A. Exp. Stn., Cornell, 
Bull. 380 ; Sept. 191 6 ; figs.). — The first symptoms of this disease are 
minute brown or purplish-brown circular spots on foliage usually in July or 
