166 
caused great loss (p. 280). In tlie government of Tiflis the common diseases 
are Erysiphe, Peronospora, and Sphaceloma (p. 281). (J. F. J.) 
(See also Nos. 342, 348, 424, 453, 455, 456, 459, 461, 468, 469, 470, 476, 507, 
509, 511, 549, 632, and 633.) 
D. —DISEASES OF FOREST AND SHADE TREES. 
442. Anderson, Robert. The canker of the larch. Jour. Roy. Agric. Soc., 3d ser., 
vol. 2, part 3, London, Sept. 30, 1891, pp. 643-644. Discusses treatment ad¬ 
vised by Carruthers and thinks cutting out would be successful, but that 
there is no substitute for the larch. (M. 13. W.) 
443. Carruthers, J. 13. The canker of the larch. Jour. Roy. Agric. Soc., 3d ser., 
vol. 2, part 2, London, June 30, 1891, pp. 299-311, fig. 8. A description 
tion of Dasyseypha Willlcommii ( Peziza WilUcommii ) and its injuries to the larch 
with wood cuts illustrating its microscopic characters and distortions of the 
host. Discusses the nomenclature, history, and occurrence of the fungus 
in England. The author differs from Ward in that he thinks the germ tube 
from the spores is able to penetrate sound bark if young, so that a crack 
or wound is not necessary for the infection. Bark three or four years old is 
impervious to the fungus. Suggests keeping the fungus in check by cutting 
out and burning. (M. B. W ) 
444. Masters, M. T. Larch canker. Gard. Chron., 3d ser., vol. 10, No. 241, London, 
1891, p. 160, 1 col. Review of article in the Journal of the Royal Agricul¬ 
tural Soc. (See No. 443.) (M. B. W.) 
445. Mayr, Heinrich. Die Waldungen von Nordamerika, ihre Holzarton, deren Anbau- 
fahigkeit und forstlicher Worth fiir Europa ini Allgemeinen und Deutschland insbe- 
sonders. Miinchen (Riegerische), 1890, pp. 433-434. Enumerates the fungous 
parasites of forest trees of North America observed in autumns of 1885 and 
1887. He includes the following new species. Puccinidia abietis n. gen. 
and n. sp. on Abies concolor, Gymnosporangium Libocedri on Libocedrus de- 
currens, Chrysomyxa Libocedri on Libocedrus decurrens, JEcidium sp. ? on Frax- 
inus sp., JE. deformans on Pinus mitis, Exoascus quercus-lobatce on Quercus lo- 
bata, Sclerotium irritans on Chamcecyparis sphceroidea, Bhytisma punctiforme on 
Acer macrophyllum, Lophodermium (Hysterium ) baculiferum on Pinus ponde- 
rosa, P. resinosa, and P. laricio, L. abietis-concoloris on Abies concolor, L. in- 
fectans on Abies concolor, Dotliidea betulina on Birch sp., Microsphcera ( Ery¬ 
siphe) corni on Cornus florida, Fnsicladium sp. ? on Abies Fraseri, LLysteriop- 
sis acicola n. gen. and n. sp. on Picea Sitkcensis. Includes various other fungi, 
thirty-four in all, and figures numerous species. Notes effects of Trametes 
pirn. Podosphcera corni is figured as a Microsphcera and several species are 
very doubtfully determined. (D. G. F.) 
E.— diseases of ornamental plants. 
446. Halsted, B. D. An orchid anthracnose. Garden and Forest, vol. 4, No. 175, New 
York, July 1,1891, p. 309. Notes a species of Glceosporium on orchids, causing 
damage in greenhouses. Thinks species distinct from Glceosporium cinctum, 
B. & C., having spores double the latter’s size and being straight instead of 
curved. (D. G. F.) 
447. Halsted, B. D. Hollyhock diseases. Garden and Forest, vol. 4, No. 189, New York, 
Oct. 7,1891, p. 477, col. Enumerates five different fungous diseases of holly¬ 
hock: Cercospora althceina, Puccina malvacearum, Colletrichum malvarum, 
Phyllosticta althceina, and Septoria Fairmani. (D. G. F.) 
448 Halsted, B. D. Pelargonium blight. Garden and Forest, vol. 4, No. 187, New 
York, Sept. 23, 1891, p. 453. Notes, with popular description, a Colletotrichum 
and an Aschochyta. (D. G. F.) 
