354 EXPERIMENT STATION^ EECOED. 



scribed, said to be suggestive of roncet iu some respects, but to lack some fea- 

 tures of the latter. A schizomycete is found in constant association with the 

 trouble. 



Notes on Cephaleuros, N. Thomas (Ann. Bot. [London'], 27 {1913), No. 108, 

 pp. 781-792, pi. 1 ) . — ^A report is given of a study of Ceylon and Barbados speci- 

 mens of Cephaleuros, one of the species of which causes a very destructive dis- 

 ease of tea plants in India and elsewhere. The author's investigations of the 

 forms studied indicate that they were free from infesting fungal hyphse, which 

 most previous investigators have described. 



The importance and control of tumors on chrysanthemum and other 

 plants, R. Laubert (MdUcr's Dent. Gdrt. Ztg., 28 (1913), No. 1,1, pp. 1,86-1,88, 

 figs. 4). — Giving a brief account of some infection experiments with root tumors 

 or crown gall of Chrysanthemum fi-utescens, the author recommends destruction 

 or radical pruning of the plants affected, and discusses briefly various other 

 measures intended to prevent the spread of the disease. 



A disease of narcissus bulbs, G. Massee {Roy. Bot. Gard. Eeiv, Bui. Misc. 

 Inform., 1913, No. 8, pp. 307-309, pi. 1). — It is stated that a disease of narcissus 

 bulbs, which was first noted as becoming troublesome about three years ago, 

 has become serious, some growers losing a large proportion of their bulbs. A 

 study of the trouble has shown that it is due to Fusarium tulMgenum. The dis- 

 ease is first indicated by the presence of small, yellowish spots on the leaves. 

 Subsequently the mycelium passes downward into the bulb involving the fleshy 

 bulb scales, and later causes them to rot. The disease is spread through 

 slightly diseased bulbs containing the spores, or is introduced into sound bulbs 

 through infected soils. 



Wind as a pathological factor in regard to plants, F. J. Meyer {Naturw. 

 Wchnschr., 28 {1913), No. 38, pp. 599-606, figs. 5).— Illustrations and descrip- 

 tions are given of some effects of wind in destroying, deforming, or stunting 

 trees, or in affecting otherwise their normal development. 



A bibliography is appended. 



Polyporus dryadeus, a root parasite of the oak, W. H. Long {U. S. Dept. 

 Agr., Jour. Agr. Research, 1 {1913), No. 3, pp. 239-250, pis. 2; Phytopathology, 

 3 {1913), No. 6, pp. 285-287). — ^Attention is called to the rot attributed in Europe 

 to P. dryadeus. The author states that a study of materials indicates that the 

 fungus is undoubtedly identical with the heart-rotting fungus known in America 

 as P. dryophilus and that the rot and sporophore described by Hartig do not 

 belong to P. dryadeus but to P. dryophilus. 



Extensive field studies made in the forests of Arkansas, eastern Texas, Okla- 

 homa, Maryland, and Virginia showed that the fungus P. dryadeus is common 

 on many species of oak, where it produces a white sap rot and a heart rot in the 

 roots. The growth of the fungus seems to be limited to the underground parts 

 of the tree. In most cases only old or much suppressed trees were found at- 

 tacked by the fungus. The disease does not seem to spread to adjacent trees. 

 It is believed to be widely distributed both in America and in Europe, probably 

 being found in these countries throughout the range of the oak trees. 



A short bibliography is appended. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



[Game and fur-bearing animals in Indiana], G. W. Miles {Bien. Rpt. 

 Comr. Fisheries and Game, Ind.., 1911-12, pp. 229-267, pis. 15). — The papers 

 here presented relate to attempts to establish European game birds in Indiana 

 (pp. 234-236) with an illustrated account of H. A. Link (pp. 237-267) of The 

 Fur Bearing Animals of an Indiana Farm. 



