256 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Hemp (Canjiabis sativa) is grown for fibre in Europe, Ghiiia, Jupan, 

 and the United States. 



The hitter use all they grow and import more besides. Hemp is a 

 crop that requires bottom moisture with a rich, alluvial, or loamy 

 soil in wdiich nitrogen and lime are present. 



After sowing (broad cast and rolled) it requires no further attention 

 till harvesting. 



It takes 110 days for its growth, and should produce about 

 1000 lb. of fibre from an acre. 



The average cost per acre is $30, and gross returns about $50. 



C. H. L. 



Hop Flea-Beetle, by F. H. Chittenden, Sc.D., and The Life 

 History and Control of the Hop Flea-Beetle, by Wilham B. 



Parker (U.S.A. Dep. Agr. Bur. Entom., Bull. 66; part vi., and 82, 

 part iv. ; May 1909-10; illustrated). — These bulletins give very full 

 accounts of the hop flea-beetle (Psylliodes punctulata Melsh), which 

 is a native American species, quite distinct from any species found on 

 hops in England or on the Continent. 



The beetle feeds freely on rhubarb, sugar beet, and certain truck 

 crops, but was not known as a serious pest until it began its depreda- 

 tions in the hop fields of the Chilliwack and Agassiz Valleys of British 

 Columbia a few years ago. — V. G. J. 



Houlletia Sanderi {Bot. Mag. tab. 8346). — Nat. ord. Orchidaceae; 

 tribe Vandeae. Peru. Herb; pseudobulb broad-oblong; leaves 

 12 inches long; scape erect, 12 inches long, 2-3 flowered; flowers large, 

 pale-yellow; petals nearly orbicular. — G. H. 



Hydrangreas, New. By E. Eouhard (Rev. Hort. August 16, 

 1910; pp. 386-7; one illustration). — A descriptive list of several 

 obtained by Lemoine et fils, Nantes. Amongst others there are note- 

 w^orthy ' Dentille ' (figured), dw^arf and very floriferous ; * Bouquet 

 Rose,' large flow^ers passing from pink to red rose; 'La Lorraine,' 

 enormous corymbs, similar colours; 'Fraicheur,' enormous corymbs, 

 white, rose-tinted, mauve centre, spotted greenish; 'Avalanche,' fine 

 wdiite; ' Ornement,' rose lilac; ' Innocence,' cream-white petals, 

 undulate; ' Mont Rose,' immense branched panicles flowering succes- 

 sively; ' Mousseline, ' nearly flat panicles, mauve with cream centre; 

 and 'Radiant,' nearly hemispherical corymbs, deep-rose carmine, 

 deepest coloured of the group. — C. T. D. 



Ilex Pernyi (Gard. Mag., No. 2976; November 12, 1910, pp. 

 896). — An interesting holly from China. It appears to thrive under 

 the same conditions which suit the common holly, and attains a height 

 of 12 to 15 feet or more. The leaves are deep green, glossy, of thick 

 texture with spiny margins, small red fruits in axillary clusters. It 

 has a distinct appearance. Seedlings are said to exhibit some varia- 

 tion.— E. B. 



