Fungi. Myxomyceten, Pathologie. 121 



the only disease which is attracting any attention is the crown gall. 

 Co-operative experiments are being carried on with the United 

 States Department of Agriculture, Perley Spaulding. 



Hedgcoek, G. G., The crown-gall disease of the grape 

 vine. (Bull. New Mexico Agric. Expt. Station. LVIII. p, 30—31. 1906)_ 



This disease has been known for a long time in Europe and in 

 California but seems to have been introduced into New-Mexico 

 from the latter State as it occurs rarely upon vines which have been 

 raised from the Mission stock of the vicinity. The disease drains the 

 vitality of the plant since the sap is often lost to a considerable 

 extent through the loose tissues of the gall. The galls die every 

 Winter where freezing weather occurs and the woody tissues beneath 

 also die. The next spring a new gall growth is formed by the sur- 

 rounding tissues and in the course of a year or two in susceptible 

 varieties the whole stock is encircled and dies. Badly diseased vines 

 bear poorly and are of little value. The following California 

 varieties are subject to the trouble: Mission, Mtiscat of Alexandria, 

 Flame Tokay, Rose of Peru, and Black Prince. The following varie- 

 ties are freeest from the disease: Sidtana\Seedless , Feher Zagos, White 

 Sweet Water, Lenoir, Zinfandel and Black Malvoise. The only method 

 of coping with this trouble seems to be that of securing resistant 

 varieties. Diseased vines should be destroyed and none planted in 

 the same field for a number of years. Water should not be allowed 

 to run from a diseased field into one uninfected. Great care should 

 be exercised in getting new stock. Perley Spaulding. 



Kaufifman, C. H., Cortinariiis as a mvcorhiza-producing 

 fungus. (Bot. Gazette XLII. p. 208—214. Sept. 1906). 



The fungus Cortinarius ruhipes sp. nov. was found by the writer 

 to be connected as a symbiont with the roots of red oak, sugar 

 maple, and Celastrus scandens. The fungus did not seem to be asso- 

 ciated with any Single species. Examination showed that the mycorhiza 

 is truely ectotrophic. The fungus is described in another publication. 



Perley Spaulding. 



Longyear, B. O., A new apple rot. (Bull. Colorado Agric. Exp. 

 Station. CV. p. 1 — 12. Nov. 1905). 



An apple rot caused by Alternaria has been known since 1902 in 

 Colorado. It has also been found in Michigan and in apples from 

 California. Pears have also been found to be affected. Spraying 

 with Bordeaux mixture will probabh^ control the disease. 



Perley Spaulding. 



Massee, George, A fungus parasitic on a moss. (Torreya VI. 

 p. 48—50. March 1906). 



A brief account of a fungus Epicoccum torquens sp. nov., occurring 

 as a parasite upon the moss Weisia viridiila from Thomasville, 

 Georgia. This attacks the capsule or fruit where it forms minute, 

 dark-colored warts. Perley Spaulding. 



