CROSSINGS MADE AT NATURAL HISTORY MUSEUM, PARIS. 227 
10. Syringa Bretschneideri x persica (hybrid) x §. persica (L.). 
Cross of second degree. 
Object.—To accentuate the influence of 8. persica. 
1899. One inflorescence treated. Five fruits swollen, and in good 
condition (July 4, 1899). 
11. Syringa Bretschneideri x vulgaris (hybrid) xS. vulgaris (L.). 
Cross of second degree. 
(a) Cross with single-flowered varieties. 
Object.—To accentuate the influence of S. vulgaris. 
1899. Two inflorescences treated. Twelve fruits swollen and well 
formed (July 4, 1899). 
(6) Cross with double-flowered varieties. 
1899. Three inflorescences treated. Thirty fruits swollen, of which 
twenty-seven are well formed, and three smaller (July 4, 1899). 
12. Syringa Bretschneideri x vulgaris (hybrid) x §. pubescens 
(Turez.). 
1899. Two inflorescences treated. Eighteen fruits swollen and well 
formed (July 4, 1899). 
13. Syringa dubia (Pers.) xS. pubescens (Turcz.). 
Object.—To obtain something special from Syringa dubia, which, con- 
trary to what has been long believed, produces good seed sometimes. 
1890. One inflorescence treated. Result nil. 
14, Syringa Emodi (Wall.) x Ligustrina pekinensis (Regel). 
Object.—Experiment with a Ligustrina. 
1899. One inflorescence treated. Six fruits swollen. Result at 
present uncertain, fertilisation appearing to have operated too late. 
15. Syringa persica (L.) x Ligustrina pekinensis (Regel). 
Object.—To investigate Ligustrina. 
1895. Three inflorescences treated. Some seeds gathered, none 
germinated. 
16. Syringa persica (L.) x §. pubescens (Turcz.). 
1890. Three inflorescences treated. Results nil. 
1895. One inflorescence treated. Result nil. 
1896. Two inflorescences treated. Results nil. 
1897. One inflorescence treated. Result nil. 
1899. Three inflorescences treated. Results nil. 
17. Syringa persica (L.) x S. vulgaris (L.). 
Object.—Reconstitution of S. dubia (Pers.), considered to be a hybrid 
hy several botanists. 
1894. Three inflorescences treated. Four seeds obtained, three 
germinated. 
Q2 
