248 
Pilzkrankheiten der Pflanzen 
were mummified in the eharacteric. way. Field observations have also 
shown that the fungus enter the ovary as a rule through the stigma. 
On the other hand, these conidia applied to apple flowers produced no 
effect. 
Sclerotinia cinerea occurs on Hokkaido in the blassoms of apricot, 
Prunus Munie and P. tomentosa and on the fruits of cherry and 
apricot. 
A. fructigena is quite common in Japan on the fruits of apple 
and pear. It also appears on the ripe fruits of quince, cherry, 
apricot, peach, plum, Prunus Mume, P. Pseudo-Cerasus , grape 
and Elaeagnus macrophylla. In an instance, the fungus was found forming 
typical tufts of conidiophores upon a dead twig of apricot, — a pheno¬ 
menon indicating that the fungus is capable, under certain conditions at 
least, of producing the twig blight of the apricot. The author has 
also ascertained that the fungus occasionally attacks the blossoms of pear 
and Pirus spectabilis in Hokkaido. S. fructigena occuring on the fruits 
of Actinidia polygama growing wild in the vicinity of Sapporo was 
first collected by J. Hanzawa and later by M. Kasai. 
As a means of identifying various Monilia -fungi on different hosts, 
the author studied their behaviour on culture media, and so for in Japan 
Sclerotinia laxa is yet unknown, while S. fructigena and S. cinerea are 
known only in their conidial form. 
In addition notes are given on the vitality of the apple blossom 
blight-fungus and S. cinerea and on some other topics. 
Y. Takahashi (Sapporo). 
CRAIGHEAD, F. C., Insects contributing to the control of the 
Chestnut blight disease (Science, N. S. 1912, 36 , 825 [13. Dec.]). 
Investigations by the Bureau of Entomology during the summer of 
1912 on the spread of the Chestnut blight show that certain insects 
destroy many of the pycnidia and perithecia of the Endothia. 5 species 
are noted, among which is Agrilus bilineatus , the Chestnut borer. In 
some localities 50 to 75% of the pustules were eaten, and on certain 
badly diseased trees practically all were destroyed. The author believes 
that the insects are acquiring a taste for the fungus which may play an 
important part in controlling the disease. Nothing is said, however, as to 
the role they play in carrying the spores about on their bodies. 
C. J. Humphrey (Madison, Wise.). 
DARNELL-SMITH, 0. P., Notes on certain plant diseases met with 
during the year 1911 (Sec. Rep. Govern. Bur. Microbiol. N. S.-Wales 
1912, 171—172). 
Von den Mitteilungen sei hier kurz erwähnt, daß Urocystis Tritici 
in Neusüd wales mehr und mehr auftritt. — Phoma citricarpa zeigte 
sich trotz systematischen Spritzens sehr häufig auf Citrus- Früchten. 
Riehm (Berlin-Dahlem). 
T OBLER-W OLFF, G., Die Sy n c hy tri en. St u d i e n zu einer Mo¬ 
nographie der Gattung (Arch. f. Protistenk. 1913, 28 , Heft 2, 
141 — 238, Taf. 10—13. Auch separat. Jena, G. Fischer). 
