Website/Catalog  (1909)  Page(s) 9.  
 
JAPANESE VARIETIES. The following varieties are others’ introduction.
Apollo, pink guards and golden center ...$ .75

Book  (1907)  Page(s) 25.  
 
166. APOLLO; P.
(1) 1904, Harrison's Peony Manual, p. 53.

Book  (1907)  Page(s) 49.  
 
Japanese Peonies...
Apollo. Deep pink, shading lighter toward the edges.

Book  (1904)  Page(s) 53.  
 
The Japanese Paeonys.
Thr nomenclature of this whole family is in a chaotic state, and the Paeonys Society is hard at work naming and classifying them. I have in all some thirty kinds. I append Henry Freer's list: 
Apollo. Deep pink, shading lighter toward the edges.

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.
Apollo. Deep pink, shading lighter toward the edges.

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.
Apollo. Beautiful clear rose.