Fungi, Bacteria und Pathologie. — Lichenes. 279 



(Pers.) Rehm, Bulgaria rufa Schw., and B. inquinans Fries, Urnula cra- 

 terium (Schw.) Fr.' Hedgcock. 



Sheldon, John L, Diseases of Melons and Cucumbers 

 du ring 190 3 and 190 4. (West Virginia Agricuitural 

 Experiment Station Bulletin. XCIV. p. 120—142. 5 pl. 

 16 fig. Dec. 1904.) 



Brief descriptions are given of the diseases produced by Cercospora 

 citniUina Cooi<:e on the watermelon, Plasmopara cubeiisis (B. and C.) 

 Humphrey on the muskmelon, Macrosporinm ciimmerinnm E. and E. on 

 the muskmelon. and a dumping off disease of cucumber seedlings ascri- 

 bed to Fusarium sp. 



The results are given of careful study of the anthracnose of the 

 watermelon and its cause Colletotrichum lagenarium (Pass.) E. and H. 

 This was the most destructive disease of the watermelon in the State in 

 1904. The fungus was isolated and grown on artificial media in pure 

 cultures. and spores from these, and also those grown naturall_y in the 

 rind of the watermelon were used in inoculating the seedlings of the 

 watermelon, muskmelon, pumpkin, squash, gourd, and wax bean, the 

 more mature plants of the cucumber and wax bean, and the fruits of the 

 watermelon, cucumber, muskmelon, squash and wax bean. Inoculations 

 with pure cultures of the fungus were successful in producing the dis- 

 ease upon the seedlings of the watermelon, muskmelon^ and gourd, and 

 the fruits of the cucumber, but failed or were doubtful when inoculated 

 upon the seedlings of the pumpkin, squash and wax bean, and the fruits 

 of the wax bean. Cultures taken direct from the rind of the watermelon 

 succesfully inoculated fruits of the plants of the watermelon, cucumber 

 and muskmelon, and gave doubtful results in case of those of the squash. 



Hedgcock. 



Snyder, Harrv, Rusted Wheat. (Bull. Minnesota AgricI. 



Expt. Station. XC. p. 228—231. 1905.) 



Nearly all the glutenous material which should have gone _ into the 

 grain was still retained in the straw, making it better for feeding than 

 ordinary clean straw. The intensity of the rust is almost proportional 

 to the excess of protein in the straw. The rusted grains contained a 

 higher percentage of protein, fibre, and ash than did sound grains. 



Perley Spaulding. 



WiLCOX, E. Mead., Diseases of the apple, cherry, peach, 



pear, and plum,with methods of treatment. (Bull. 



Alabama AgricI. Expt. Station. CXXXII. p. 75— 142. 1905.) 



In this paper are given the general results of various workers with 

 the following diseases: bitter rot, black knot, blight, canker, fly speck, 

 hairy root. rust, scab, and sooty blotch of apple; black knot, brown rot, 

 gummosis, and leaf spot of cherry; brown rot, crown gall, gumniosis, hairy 

 root, leaf curi, rosette, and yellows of peach; blight, leaf blight, and scab 

 of pear; black knot, brown rot, canker, gummosis, leaf spot, and plum 

 pockets of plum. A discussion of the usual fungicides follows. 



Perley Spaulding. 



Britzelmayr, M., Lichenologisches. (Hedwigia. Bd. XLIV. 

 1905. p. 199—217.) 



Die Arbeit zerfällt in 4 Capitel, deren jedes ein eigenes Thema 

 behandelt. 



I. Verf. hat die beiden in den Bayerischen Alpen liegenden 

 Berge Hochfella (1671 m) und Hochgern (1745 m.) besucht und 

 nach Lichenen untersucht. Die Berge werden aus Kalk und Lias-Ho;;- 



