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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



of the insects in all stages being adequately described. The larvae of 

 both the insects cause considerable damage to a variety of trees, often 

 completely defoliating them, while the latter is troublesome on account 

 of the irritation to human beings caused by the hairs from the cater- 

 pillars. Both are introductions from Europe. The text of the Act for 

 their suppression is given ; and it is stated that the best method of 

 control of the gipsy-moth is to soak the eggs with creosote in autumn, 

 winter, and spring; and of the brown-tail moth, to cut off and burn the 

 webs made by the caterpillars in winter. — F. J. C. 



Hippeastrums. By J. Douglas (Gard. Chron. No. 1106, p. 145 ; 

 March 7, 1908). — This paper gives an interesting account of the history, 

 cultivation, &c. of this genus, which was known for so many years as 

 A marylUs, a much more euphonious and pleasing name. — G. S. S. 



Japanese Chestnut, the Immunity of, to the Bark Disease. 



By Haven Metcalf (U.S.A. Dep. Agr., Bur. PI Industry, Bull. 121, 

 part iv. 1908). — The contents of this pamphlet are of considerable interest, 

 dealing as they do not only with this fast-spreading fungoid disease 

 (Diapiorthe parasitica), but with a Japanese form of the chestnut which, 

 so far, has been found to be immune from the disease. Castanea crenata 

 does not produce fruit of equal value to the commonly cultivated species, 

 yet it is particularly valuable in being able to ward off the fell disease 

 which has killed out such large numbers of the original tree in the 

 Atlantic States. 



The newly introduced tree is said to attain to a height of 50 or 60 feet 

 in Japan. — A. D. W. 



Julianiaeeae. By W. Botting Hemsley (Gard. Chron. No. 1103, 

 p. 98, fig. 42 ; February 15, 1908). — This proposed new family is very 

 fully described and illustrated in a recent number of the " Philosophical 

 Transactions of the Royal Society." " As far as is known at present the 

 genus Juliana consists of four species, all Mexican : they are tortuously 

 branched, dioecious, resinous shrubs or small trees, having alternate 

 unequally pinnate leaves of three to eleven leaflets, and very similar to 

 those of certain species of Blius." Then follows a detailed description 

 of the genus.— G.S.S. 



Liparis tabularis. By R. A. Rolfe (Bot. Mag. tab. 8195).— Nat. 



ord. Orcliidaceae, tribe Epidendreae. Penang. Pseudo-bulbs conical, 

 8 5 inches long ; leaves 3—5 \ inches long, nearly 2 inches broad; flowers 

 large reddish purple, lip orbicular denticulate, '\ inch broad. — G. H. 



Malvastrum hypomadarum. By T. A. Sprague (Gard. Chron. 

 No. 1121, p. 394, fig. 176; June 20, 1908).— This plant, though it has 

 been cultivated in Britain for the last fifty years, has not previously been 

 described. It is a free-flowering shrub, two or three feet high, with long 

 slender branches which are densely pubescent ; the leaves are usually 

 8-lobed, but show considerable variation in size, shape, and cutting. The 

 flowers cure white, with a rose-purple blotch at the base of each petal. 



