Pflanzenkrankheiten. — Bryophyten. 
119 
disease caused by Rhizoctonia violacea. A bed known to be infected 
was divided into a number of plots, and was treated in March with 
one or other of the following fungicides: copper sulphate, iron sul- 
phate, Phenol, mercuric Chloride, Formalin, Sulphur, Petroleum or 
Quicklime. With the exception of that with Phenol no very marked 
success attended any of the experiments. In the phenol plot the 
plants were not only practically free from disease but they appeared 
in every way healthier than in any of the others. The phenol was 
nsed at the rate of 1 dz. hot gallon of water, and 40 gallons were 
applied to the plot which measured 19 ft. by 9 ft. A. D. Cotton. 
Stockdale, F. A., Fungus diseases of Cacao and Sanitation 
of the Cacao Orchards. (West Indian Bulletin. Vol. IX. N°. 2. 
p. 166—189. 1908; also as Pamphlet, n°. 54.) 
A review of all the fungus diseases of Cacao in the West In- 
dies together with suggestions as to sanitation of the Cacao planta- 
tions. Some eleven diseases are dealt with which are grouped under 
three headings, viz. those affecting 1) the root, 2) the stem and 3) 
the pod. A stem-canker apparently caused by a species of Nectria 
is described in detail; two species of this genus are commonly 
found on the diseased bork, but the extent of their parasitism is 
not fully known. “Die back” caused by Diplodia cacaoicola , and a 
new disease apparently due to a species of Lasio diplodia are other 
stem diseases of importance. A. D. Cotton. 
Stoekdale, F. A., Root disease of the Sugar Cane. (West In¬ 
dian Bulletin. Vol. IX. N°. 2. pr T63—116. 1908.) 
A general account of the Sugar Cane Root disease which has 
of recent years caused heavy losses in the Westlndies. The fungus 
Marasmius Sacchari is still held to be mainly responsible for the 
trouble, though other fungi are also suspected of causing damage. 
In the section dealing with remedial measures the application of 
unslaked lime to the canefields, from the point of view of a fungi- 
cide, is strongly recommended. A. D. Cotton. 
Collins, J. F., Preliminary lists of New England plants* 
XIX. Addenda. (Rhodora. X. p. 71—72. April, 1908.) 
Several additional records of mosses for New England are 
here brought together. These relate to Buxbaumia indusiata Brid., 
Catharinaea Macmillani Holz., C. crispa James, Pogonatum alpinum 
var. arcticum (Sw.) Brid., Polytrichum commune var. perigoniale (Mx.) 
Bry. Eur., and P. gvacile Dicks. Maxon. 
Hagen, I., Fra E. Ryans Mosherbarium. (K. Norske Vidensk. 
Selskabs. Skrifter. N°. 1. 36 pp. Mit Bildnis. 1907.) 
Verf. liefert zuerst eine kurze Biographie und wissenschaftliche 
Würdigung des im Jahre 1905 gestorbenen norwegischen Bryologe 
E. Ryan, der gleichzeitig mit einer Anstellung als praktischer Che¬ 
miker sich in sehr fruchtbarer Weise mit der bryologischen Erfor¬ 
schung von Norwegen beschäftigt hat, um dann einen Bericht 
über den reichen Inhalt seines nachgelassenen Moosherbarium, 
