308 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Central America, and between November 1850 and September 1857 

 be netted parts of British Honduras, Guatemala, and Costa Rica. The 

 most important result of the mission was the enriching of the gardens 

 ol Europe with many beautiful plants previously unknown, belonging 

 ohiefly to the Orchid, Aroid, and Palm families, the last named being a 

 speciality of his. Among the best known and most appreciated of his 

 introductions, Ant/atrium ScJwr.zericuium indisputably takes a prominent 

 place. Two years after his return to Europe, he received an appointment 

 in the Berggarten at Herrenhausen, and in 1863, on the death of his 

 father, he succeeded to the directorate, which he retained till his decease. 

 Under his direction the Palm House in the Berggarten became one 

 of the most famous in Europe, and he was looked up to both by botanists 

 and horticulturists as one of the best authorities on Palms, a subject on 

 which he published several valuable treatises. The collection of Orchids 

 and stove plants in the Berggarten was also among the most extensive 

 and best cultivated in Europe. — A. H. K. 



Willows, New Asiatic. By E. Wolf (Engl. Bot. Jahrb. xxxiii. 1903, 

 pp. 275-9; 24/4/1903). — The author describes seven new species from 

 various localities in Central Asia. — A. B. B. 



Woolly Aphis or American Blight. By Walter W. Froggart, 

 F.L.S. {Agr. Gaz. N.S.W. pp. 18-25; January 1903). — An article deal- 

 ing with this familiar Apple-pest. It is well known under both the above 

 names, though several American entomologists have protested against 

 their country being credited with being its native home, and claim that 

 the term " American blight " is a misleading name, as it was known in 

 Europe long before it was noticed in America. It was first recorded from 

 Europe in 17<S7, and in the early part of the following century spread 

 over France, Germany, and Belgium. Fitch states that nurserymen 

 informed him in 1848 that it was prevalent in Virginia and Pennsyl- 

 vania. It appears, at any rate, to have been introduced into England by 

 way of America, for Sir Joseph Banks traced it, in 1789, to a London 

 nursery, whose owner had imported Apple trees from America, but it is 

 not improbable that it was previously taken to America from Europe, and 

 mi ported into England via that country. The writer gives details of the 

 manni c in which the pest attacks the different parts of the tree, and refers 

 to tin practical application of producing blight-resisting stocks, which is 

 (lu. to the experiments made in 1868-1870 by Messrs. T. Lang & Co., 

 th. Victorian nurserymen. Then follow observations of the life-history 

 oi thia pest, made by eminent entomologists in America, Europe, and 

 Australia. The article concludes with notes on various experiments that 

 h;i\e Ihm n carried out to combat the pest.— H. G. C. 



Woolly Aphis at the Roots. By Prof. L. H. Taft {Proc. Am. Pom. 

 Sue. 1901, p. 14). — To destroy this pest, work in large amounts of w r ood 

 ashefl or tobacco dust among the roots. — C. H. II. 



Yucca fllamentosa, Development of the Macrosporangium. 



|; .' 8. Bee i. i uiversity of Michigan (Bot. Gaz. xxxv. No. tf, p. 209).— 



