334 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
the fruit, and converts a portion of the non-protein nitrogen of the host 
into protein nitrogen in its own mycelium. Nitrites could not be 
detected. A. L. S. 
Wojnowicia graminis on Wheats in the United States. — H. H. 
McKinney and A. G. Johnson ( Phytopathology , 1921, 11, 505-6). The 
writers were investigating the occurrence of take-all, Ophiobolus graminis , 
on wheat, and found the pycnidia of another fungus infecting the same 
spots. It has been surmised that the two fungi are genetically connected, 
but the writers of the paper have not yet come to any conclusion on that 
subject. A. L. S. 
Cercospora Leaf-spot on Egg-plant.— Colin G. Welles (. Phyto- 
pathology , 1922, 12 , 61-5, 2 figs.). This rather serious attack on leaves 
was discovered in the Philippine Islands at the Experiment Station for 
the Agricultural College. It resembled outwardly the damage done by 
Phyllosticta hortonm, but was proved to be caused by Cercospora 
melongense. It injures the plant by reducing the photosynthetic tissue 
of the leaves. A Siamese variety of the egg-plant with round yellow 
fruit was not so seriously attacked. Bordeaux mixture checked the 
disease. A. L. S. 
Septobasidium on Pinus Strobus. — Walter H. Snell ( Mycologia , 
1922, 14, 55-60, 3 pis.) The fungus grew on the bark of white pine. 
It is a northern form of Septobasidium, most of the species being tropical 
or subtropical. It was found in New Hampshire, and the writer has 
worked out the development by cultures. Other species of Septobasidium 
grew on scale insects, and examination of the pine bark showed that the 
present species, S. pinicola, was also associated with such insects. 
A. L. S. 
The Take-all Disease of Cereals and Grasses. — R. S. Kirby 
(Phytopathology , 1922, 12, 66-88, 3 pis., 3 figs.). The disease due to 
the fungus Ophiobolus car iceti has been found on wheat, doing consider- 
able damage. None of the forms or varieties of Triticum have been 
found to be immune. Investigation proved that seeds from diseased 
plants did not carry the disease, nor did soil carry the disease after 
eight months, but bits of infected straw were very effective inocula, and 
were still effective after eight months. The fungus in culture requires 
a certain amount of alkalinity, so the use of lime is deprecated. Other 
means of warding off disease are removal of diseased plants, rotation of 
crops, etc. A. L. S. 
Brown Rot of Apricots. — W. L. Howard and W. T. Horne 
( Univ . California Publications, Bull. No. 326, 1921, 73-88, 5 figs.). 
The disease is due to the fungus Sclerotinia cinerea fructigena, and to 
the conidial stage Monilia fructigena. It has been frequently described, 
but the present pamphlet deals somewhat exhaustively with the methods 
employed for overcoming the disease. It attacks the flowers, fruit and 
twigs, chiefly in moist weather, and in California occurs only in districts 
near the sea. It was found that spraying either with lime-sulphur or 
Bordeaux mixture was effective, when applied at the time when the 
