Book  (1936)  Page(s) 377.  
 
Jules César (bourbon) E. Verdier 1865; dark cherry, large, double, fine form, cluster-flowered, floriferous, growth 5/10.

Book  (1906)  Page(s) 80.  
 
5.161. Jules César, Ile-Bourbon, E. Verdier 1865 cerise

Magazine  (Jun 1902)  Page(s) 84.  
 
NÉCROLOGIE - EUGÈNE VERDIER
Rosiers Mis au Commerce par Eugène Verdier.
Jules César: Bourbon, 1865.

Book  (1885)  Page(s) 34.  
 
TRIBE ROSEÆ.
ROSA, Linn.; Rose.
Garden Varieties—
Jules Cæsar; hybrid perpetual. Plant in Brisbane Botanic Garden.

Book  (1882)  Page(s) 15.  
 
Jules César... Ile-Bourbon. E. Verdier. 1865 Rose cerise foncé. Fleur grande. Plante vigoureuse.

Book  (1880)  Page(s) Annex, p. 66.  
 
bourbon, JULES CÉSAR, deep cherry-pink, large, double, fine form, cluster-flowered, floriferous.

Website/Catalog  (1874)  Page(s) 31.  
 
Jules Caesar dark cerise rose, produced in clusters from five to eight, large, full and fine form. 

Book  (1873)  Page(s) 211.  
 
Bourbon. Jules César, large, very full and fine form, beautiful dark cherry-pink, cluster-flowered; very beautiful.

Website/Catalog  (1873)  Page(s) 38.  
 
Hybrid Perpetual Roses
Jules Cesar  Dark cerise rose, produced in clusters from 5 to 8; large, full, and of fine form.

Website/Catalog  (1868)  Page(s) 21.  
 
Rosiers remontants.
Ile Bourbon (nouveautés).—Jules César, le Florifère, Œillet Flamand, Madame Luizet.