1000 EXPERIMENT STATION RECORD. 



the early crop was the most productive. It is believed that for the 

 average season late planting is the most profitable, in spite of the fact 

 that the plants must be sprayed to protect them against the late 

 blight. 



Potato scab (pp. 100-102). — Brief notes are given on the cause of 

 potato scab and recommendations given for its prevention. The author 

 advises the use of clean seed, phuitiug in clean soil, and the use of 

 clean fertilizers. Where the seed potatoes are not known to be free 

 from the scab it is suggested that they be soaked in a solution of cor- 

 rosive sublimate before planting. After such a treatment the yield of 

 merchantable potatoes in one of the author's experiments increased 

 more than 50 per cent in 1894. 



New species of parasitic fungi, S. M. Tkacy and F. S. Earle (Torrey Bui., 22 

 {1S95), No. 4, pp. 174-179). — Descriptions are given of tlie following new species of 

 parasitic fungi: Puccinia notahiUs on Pluchea borealis (?), P. paspali on Paspaluvi 

 virgatum, Ustilago crus-gaUi on Panicum crus-galU, U. tonglinensis on Ischcemum ciliare 

 from India, U. ornafa dn Leptochloa mucronata, U.perUisa on Setaria macrochcBta from 

 Queensland, U. pustulata on Panicum proUferum, Dimerosporium inagnolice on Magnolia 

 virginiana,A8teridiumillicii on Illiciumfloridanum, SphoereUa andromedmon Pierisnitida, 

 Lembrosia angustiformis on Ilex coriacea, L. prinoides on the same, L. illiciicola on 

 Illicium floridanum, Vermicularia stachydis on Stachys affiiiis, Diplodia minuta on Tecoma 

 radicans, D. sassafras on Sassafras officinale, Hendei'sonia tapltrinicola on blisters of 

 Taphrina on Quercus virginiana, Pestalozzia cliftonice on Cliftonia ligustrina, P. brevi- 

 aristata on Tecoma radicans, Scolecotrichum punciiilatum on Iris pabularia, Cercospora 

 flexuosa on Diospyros virginiana, C. graminicola on Phleum pratense, C. hibisci on Ilibisciis 

 esculentus, C. mississippiensis on Smilax glauca and S. rotundifolia, and Tetraploa 

 divergens on Panicum agrostidiforme. 



Grain smuts and potato scab, A. Nklson ( Wyoming Sta. Bui. 21, pp. 24, figs. 

 4). — Popular illustrated notes are given on the cause and distribution of grain smuts 

 and potato scab. Directions for the hot water and copper sulphate treatments are 

 given and the former recommended as the more efficient treatment for the preven- 

 tion of grain smut. For the potato scab soaking the seed tubers iu corrosive subli- 

 mate is advised and the precautions to be observed in such treatment are mentioned. 



Root rot of beets, Hiltneu {Sachs, landw. Ztschr.; abs, in landw. Centbl. Poseu, 

 23 {1895), No. 14, pp. 79, SO). 



The drooping disease of tomatoes, G. Abbey {Jour. Hort,, n. «., 1895, No. 774, p. 

 S60). — A disease due to a slime fungus, Plasmodiophora tomati, is described. The 

 treatment is the same as for club root of cabbage. 



Diseases of the cherry, L. H. Pammel {Trans. loioa Hort. Soc. 1893, pp. 24S- 

 253). — An account of the spot disease {Cylindrosporium padi), cherry and plum scab 

 (Cladosporium carpopliilum), cherry powdery mildew {Podosplwra oxacantha), and 

 black knot {Plowrightia morbosa), the descriptions being in sufficient detail to be of 

 value to working horticulturists. 



Brunnisure of the vine, U, Brizi {Staz. Sper. Agr. Ital., 28 {1895), No. 2, pp. 112- 

 128, pi. 1). 



A root rot of cyclamen, P. Sorauer {Ztschr. Pfianzcnkrnnl'., 6 {1895), No. 1, p. 

 18). — A disease caused by the mycellium of a fungus, probably Thielavia basicola, in 

 the soil. 



A disease of the violet ( U. S. Consular Rpt. 1895, Jan., p. ISO). 



Parasitism of Agaricus melleus on oak roots, Hartig {Bot. Centbl., 52 {1895), 

 No. 2, p. 48). 



Plant diseases, M. C. Cooke {Card. Chron., 17 {1895), pp. 496, 497).— A lecture on 

 Dlant diseases, their cause and means of repression. 



