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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



being two or three weeks later than that of the varieties of C. Oxyacantha. 

 There are several other good thorns which should have attention when 

 those mentioned have become established, provided there is room for a 

 wider selection. 



The value of the lilacs has been considerably enhanced by the 

 additions that have been made to them during the past twenty or thirty 

 years. The best of the older forms have not, however, been surpassed, 



* 



and alba grandiflora, chinensis, ' Rubra de Marly ' (fig. 4), Louvainensis, 

 1 Charles X.,' and ' Dr. Lindley ' should be included in all selections of 

 single varieties. To these may be added with advantage coerulea superba, 

 'Louis van Houtte,' 'Prince Notgen,' and 'Souvenir de L6on Spiithe.' 

 Of the double varieties ' Alphonse Lavallee,' ■* La Tour d'Auvergne,' 

 'Madame Abel Chatenay,' 'Madame Lemoine,' 'President Carnot,' 

 ' President Gr<jyy,' and ' Virginite ' may be mentioned as possessing 

 much merit. The most important points in the cultivation of lilacs is 



