REPORT OF THE HORTICULTURIST 135 



SESSIONAL PAPER No. 16 



25. Thuya occidentalis luareana (T. occ. Sihirica). — Siberian arbor-vitse (Europe). 

 The Siberian arbor-vitse is a well known compact form with deep green, blunt leaves, 

 which keep their colour well in winter. 



LILACS. 



The many varieties of lilacs now offered for sale make it confusing for the 

 average person to know which kinds to purchase. In the Arboretum at the Central 

 Experimental Farm there is now a collection of 177 species and varieties, 148 of which 

 are forms of "the common lilac (Syringa vulgaris.) A list of twenty-five of the best of 

 these, with descriptions of the flowers, is given below in order to aid those who desire 

 to have the most beautiful of them. Many of the varieties are so nearly equal in 

 merit that it is difficult to choose aniong them, and opinions differ with diiferent 

 persons as to the relative beauty of each. The single flowered varieties appeal to some 

 persons, while by others those with double flowers are more admired, while still others 

 may like those with twisted or curled petals. 



In preparing the list given below the aim has been to have in it as great a range 

 of colour as possible, and also to have the different types represented. 



While the varieties of the common lilac are the most beautiful, there are some 

 very fine hardy species which bloom after the others are over. These include in order 

 of blooming, Syringa Bretschneideri, Syringa Josihcea, Syringa villosa, Syringa amu- 

 rensis, and Syringa japonica, bringing the blooming period to the month of July. 



SINGLE VARIETIES. 



Alha Grandiflora and Marie Legraye. — ^Panicles large, moderately loose; flowers 

 above medium size, single, white. Very free bloomers. These two varieties are very 

 similar and of about equal merit. 



Aline Mocqueris and Gloire de Croncel are much alike. Panicles large, rather 

 loose; flowers large, single, purplish-mauve, brighter in bud. 



Charles X. — ^Panicle medium size, compact; flowers medium size, single, purplish- 

 mauve, soon fading to lighter. A very free bloomer. Still among the best on account 

 of vigour and blooming habit. 



Congo. — Panicle large, rather loose; flowers large, single, purplish-mauve, brighter 

 in bud. Much the same colour as Gloire de Croncel and Aline Mocqueris but with 

 livelier shades. 



Delepin. — Panicle above medium size, moderately compact; flowers medium size, 

 lavender-blue, whitish about centre. Moderately free bloomer. The bluest lilac in the 

 collection. 



Jacques Caloi. — Panicle large, loose ; flowers large, single, purplish-mauve in bud, 

 violet-mauve when opened. A very attractive shade. 



Lovaniensis. — ^Panicle medium, compact; flowers medium size, single, light-lilac 

 with decided pink effect fading to almost white. A rare and attractive colour. One 

 of the best. Very free bloomer. 



Madame F. Morel. — Panicles large, loose; flowers very large, single, purplish- 

 mauve suffused with paler shades and almost white about centre. Free bloomer. A 

 very good one. 



Negro. — Panicle large, loose; flowers very large, single, bishop's violet. A free 

 bloomer. Not quite so bright in colour as Congo nor as rich as Toussaint L'Ouver- 

 ture, but flowers are larger. 



