Book  (Dec 2000)  Page(s) 289.  
 
Achille Constant
Hybrid Perpetual
Clémence Lartay 1853

Book  (1936)  Page(s) 169.  
 
Constant, Achille (HP) Lartay 1853; purple, shaded, medium size, very double, growth 7/10, lanky.

Book  (1899)  Page(s) 2.  
 
Achille Consatant, HR, Lartay, 1853, pourpre