Book  (1928)  Page(s) 259.  
 
Tree Peony Check List
†Marchioness of Salisbury. (Kelway, 1897.) 

† Never widely distributed.

Website/Catalog  (1897)  Page(s) 127.  
 
KELWAY'S NEW TREE PÆONIES for 1897.
Magnificent Introductions.
The fact that bald statements as to the colour and size of flowers gives no true idea of their actual living beauty is well known.  It is particularly true when such plants as these new varieties of Tree Pæonies are in question.  They certainly beggar description.
Marchioness of Salisbury, semi-double, pure white.  21/-