Book  (1907)  Page(s) 81.  
 
830. EXCELSIOR; P. arietina.
(1) 1899, Peter Barr & Son, Cat.
(2) 1900, Cyc. Am. Hort. p. 1191.
(3) 1904, Harrison's Paeony Manual, p. 44.
(4) 1905, Terry's Cat.
(5) 1906, C. & M. Wild Cat.
(6) Cornell Plot No. 70.

[Probably 2 distinct peonies under 1 listing]