512 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
(Lists, according to hosts, /I species of smuts from Portugal and gives 
short notes on each.) 
72. Griffiths, D. Concerning some West American Eungi. Bull. Torr. Bot. 
Club, 29 : 290-296. 1902. 
(Gives notes on hosts, distribution, etc., of 11 species of smuts, of which 
Tilletia externa, T. Earlei, Ustilago elegans, Sorosporium Bigeloviae, S. 
Williamsii are described as new.) 
73. Griffiths, D. Diseases Injurious to Forage Crops. Bull. U. S. Dep. Agr., 
Bur. PI. Ind., 38 : 43-44. 1903. 
(Lists, with notes, Ustilago hypodijtes , U. Scolochloae , Tilletia fusca, Usti¬ 
lago bromivora, U. striaeformis, U. Mulfordiana, as injurious to the range 
grasses of the western States). 
74. Griffiths, D. Concerning some West American Smuts. Bull. Torr. Bot. 
Club, 31 : 83-88. 1904. Ulustr. 
(Describes as new Sorosporium contortum , S. Eriochloae, Ustilago lycur- 
oides, U. calcara, Tilletia Wilcoxiana, Ustilago Scolochloae , Thecaphora 
Tliornberi ; with notes on these and several other species.) 
75. Gruss, J. Biologische Erscheinungen bei der Cultwirung von Ustilago 
Maydis. Ber. Deut. Bot. Ges., 20 : 212-220. 1902. Ulustr. 
(Gives results of studies with enzyin produced by this fungus in artifi¬ 
cial cultures.) 
76. Harper, R. A. Nuclear Phenomena in certain Stages in the Develop¬ 
ment of the Smuts. Trans. Wise. Acad. Sci., Arts, Lett., 12 : 475-498. 
1899. Ulustr. 
(Describes nuclear phenomena in germination of Ustilago Scabiosae and 
Ustilago anther arum; each cell of the pro mycelium and each sporidium 
has a nucleus derived by mitotic division; fusion of sporidia does not 
lesult in fusion of nuclei; describes methods of fixing, staining, etc.; 
notes different methods of non-sexual fusions found in plants.) 
77. Harwood, P. M. Smut in Oats and Wheat. Bull. Mich. Agr. Exp Sta 
87 : 1-10. 1892. 
(Gives populai account of loose smut of oats and stinking smuts of 
wheat and-their prevention by hot water treatment; notes that culms 
infected by Tilletia foetens are taller than those infected by T. Tritici.) 
78. Hays, W. M. Smut in Wheat. Bull. Minn. Agr. Exp. Sta 46 • 362- 
368. 1895. 
(Gives results of successful experiments in preventing stinking smut of 
wheat by seed treatment with copper sulphate and hot water.) 
79. Hecke, L. Vorversuche zur Bekampfung des Brandes der Kolbenhirse. 
Zeits. Landw. Ver. Oesterr., 1902 : 933. 1902. 
(Gives results of treatment with hot water, formalin, corrosive sublimate, 
and copper sulphate on germination of Ustilago Crameri and U. Panici- 
miliacei.) 
80. Hennings, P. [In Hedwigia and other German botanical periodicals has 
described, in the past few years, many of the new species of Usti- 
lagineae.] 
81. Hennings, P. Beitrage zur Pilzflora Siidamerikas. Ustilaginaceae. 
Hedw., 35 : 212-223. 1896. 
