Website/Catalog  (1908)  Page(s) 39.  
 
Pæonia Chinensis, Chinese Pæony. Japanese Single Varieties.
These single flowering varieties, with their large flowers, often six to seven inches across, are very showy. They form a distinct sub-group in this family.
Diana. Blush, with cream center.

Book  (1907)  Page(s) 70.  
 
705. *DIANA; P.
(1) 1904, Harrison's Paeony Manual, p. 53.
(2) Cornell Plot No. 480.
(3) *1905, American Florist, p. 989.

Book  (1907)  Page(s) 49.  
 
Japanese Peonies...
Diana. Blush, with creamy white center.

Magazine  (24 Jun 1905)  Page(s) 990.  
 
A Few Modern Peonies.
17. Diana (Isami-Jishi). I am investigating this one, the specimen photographed does not correspond either in color or form to the plant registered with the S.A.F. Peony Association. Should be pink and almost full to center, while this is a dark red and with only one row of guard petals.

Book  (1904)  Page(s) 53.  
 
The Japanese Peonys.
The nomenclature of this whole family is in a chaotic state, and the Paeony Society is hard at work naming and classifying them. I append Henry Dreer's list:
Diana. Blush, with creamy white center.

Website/Catalog  (1903)  Page(s) 24.  
 
Japanese Single-flowering Herbaceous Pæonies.
No other plant flowering at the same season can vie with the Single Pæony for beauty, and an established bed, when in full bloom, with the large, silky flowers measuring from 6 to 7 inches across, and appearing like immense single Roses, is simply gorgeous.
Diana. Blush, with creamy white centre.

Website/Catalog  (1901)  Page(s) 169.  
 
Japanese Single-flowering Herbaceous Pæonies.
The collection of twelve sorts offered below were selected for us by a reliable Japanese house, and we are assured contains the finest varieties in cultivation. 35 cents each; $3.50 per dozen.
Diana. Blush, with creamy centre.