68 
Kew for investigation, and the number of reports issued, increases 
annually, The ‘exceptionally dry season has obviously favoured the 
growth and extension of many mildews. Wart disease of potatoes 
shows a decided tendency to attack above-ground parts of the plant, 
in addition to the tubers. The gooseberry * Cluster-cup "—Puc- 
cinia Pringsheimiana, Kiebahn—has been exceptionally abundant, 
especially in Scotland, where the fruit, as well as the foliage, has 
been attacke 
Attention has been given to the diseases attacking sweet peas, 
asters, &c. e somewhat obscure disease resulting in the death 
of rhododendron branches has also been investigated. 
Diseased material has also been received at Kew from Queens- 
land, New Zealand, Federated Malay States, Nigeria, &c. 
Additions to the Herbarium during 1911—More than 19,000 
os ave been received as donations or exchanges, and 
ut 7,000 have been purchased. The principal collections are 
envacarated below. 
UROPE.  Presented:—A. Jordan’s Herbarium, by Miss E. 
Willmott ; Fungi, by Abate G. Bresadola; Russia, by Mr. J. F. 
Duthie ; ‘ Kryptogamae Exsiccatae,” cent. xviii. and xix., by the 
Vienna "Hofmuseum : Herbarium Hieraciorum Scandinaviae,” cent. 
xxi. and xxiy., by Dr. H. Dahlstedt. 
Purchased Rav. S. Enander, “Salices Scandinaviae,” Nos. 
101-150 ; W. Transchel and J. Se rebrianikow, “ Mycotheca 
Rossica,” fase. 3-5; H. Sydow, “ Mycotheca Germanica,” fase. 
20-21; Dr. A. de Degen, “ Gramina Hungarica,” fase. 7. 
RIENT AND Norta Asia. Presented :—Siberia, (V. L. 
Komarov), through the ag Botanic Gardens, St. Petersburg ; 
North-west we ee y Mr. M. P. Price; Turkestan and the 
Caucasus (F. N, Mover, through the United States cae 
of Agriculture. 
Purchased :—Th. Strauss, Western Persia. 
CHINA AND JAPAN, oe :—Shensi and Kansu, by Sir 
Alex. Hosie ; Meet by J. Tutcher 
Purchased :—A. K, Schindler, China ; Pére E. J. Taquet and 
Dr. R. G. Mills, Core 
INDIA AND ees, Presented :—Sir a S. Gough’s Herb- 
arium, aby the ig Societ oh Col. R. H. L, Beddome’ 8 ete 
North-West India and Sikkim, by Mr. s. R. Drummond ; Banik 
y Mr. J. H. Lace; Siam, by Dr. A. F. G. Kerr; Malay 
a by Mr. H. N. Ridley ; Philippine — by) Mr. E. D. 
Purchased :-—A. D, E. Binios Philippine Isiands. 
AUSTRALASIA, Presented :—Western Australia, by Dr. Alex. 
Morrison ; New Zealand, by Mr. T. F. Cheeseman. 
Purchased :—Max Koch, Western Australia ; 3 Dr. F. Vaupel, 
amoa, 
