NOTES AND ABSTRACTS. 



809 



Salvia yatens comipacta nana, very floriferons, dark blue flowers. 

 Phlox 'europa,' snow-white with silver-white eye. P. 'America,' 

 salmon-pink with carmine eye. P. ' Asia,' lilac-pink and carmine 

 eye. P. ' Africa, ' carmine-purple with dark blood-red eye. New 

 perennials: Anemone ja'ponica 'Alice,' an improvement on * Konigin 

 Charlotte,' Papaver orientale ' Prinzess Victoria Luise,' and 

 Rudbe'ckia ' Goldstrahl ' are useful for cutting. Dahlia ' Eiese von 

 Stuttgart,' with enormous blood-red blooms. Three new lilacs are 

 ' Frau Wilhelm Pfitzer,' 'Kate Harlin,' and * Perle von Stuttgart.' 

 Prunus Cerasus ' Schnee ' is a cross between acida and Avium. 

 Worthy of notice are the derivatives of Begonia semferflorens — viz. 

 improved Erfordia grandifiora, pink; ' Lachskonigen,' salmon; and 

 ' Pfitzer 's Triumph.' 'Bote Lubeca Wiirtembergia, ' and 'Gracilis 

 dunkelrot ' are valuable for carpet bedding. Salvia splendens * Feur- 

 ball ' is a splendid pot plant. — S. E. W. 



Nymphaea Rehneltiana Henkel. By F. Henkel {Gartenflora, 

 vol. lix. pt. vii. pp. 154-156; 1 fig.). — This water-lily from North 

 Australia bears numerous lovely blue flowers, which have an odour of 

 violets. It succeeds best in water at 68^-860 F., planted in a mixture 

 of peat, loam, and sharp sand. Manure in the form of guano, bird- 

 dung, or horn-shavings, should be placed some distance from the roots. 

 The cut flowers last eight to ten days in winter. — ;S'. E. W. 



Onion Eel-worm. By W. Laidlaw and 0. A. Price (Jour. Agr. 

 Vict. March 1910, pp. 163-171). — Eecommendations : (1) Destroy all 

 affected plants ; (2) Eemove all weeds that might afford the worms a 

 subsistence ; (3) Eemoval of the first three inches of the surface soil ; 

 (4) Deep and thorough ploughing which turns the soil exactly bottom 

 side up ; (5) The promotion of a rapid growth of the plants cultivated ; 

 (6) Sowing the infested land thickly with rye, and reaping it while 

 young; (7) Injection of carbon bisulphide into the soil, the injections 

 to be shallow and numerous ; (8) Good system of drainage. 



No good is obtained by chemical insecticides, fertilizers, change of 

 seed, or burning, and little reliance can be placed on transplanting. 

 Good barley can be grown on diseased land, and can be followed by one, 

 sometimes two, good crops of onions ; then barley must be sown again. 

 Soil fertility has little to do with the presence of eel-worm. 



G. H. H. 



Onion Fly {Anthomyia antiqua or .4. ceparum). By M. Lebl 

 {Oester. Gart. Zeit. vol. v. pt. iii. pp. 104-105). — The fly hatches and 

 breeds in April. The female lays her eggs on the leaves of the plant 

 near the ground. Sprinkling with soot is a preventive. If some plants 

 are left unsprinkled they serve as traps for the grubs. — S. E. W . 



Onion Growing'. By J. Troop and 0. G. Woodbury {U.S.A. 

 Exp. Stn. Purdue, Girc. 15, May 1909, and U.S.A. Exp. Stn. New 

 Mexico, Bull. '74, Jan. 1910). — The fiist of these contains complete 



