Website/Catalog  (1931)  Page(s) 21.  
 
Single-blooming Chinese and Japanese peonies ...Paeonia sinensis Micado, dark velvety red, deep yellow stamens, 60 to 80 cm, June/July ....2,25 Mark [10] 20,-- [100] 175,--

Website/Catalog  (1927)  Page(s) 30.  
 
Japanese Peonies: The Japanese peonies resemble the single peonies in that they have wide guard petals but instead of a tuft of pollen bearing stamens in the center they have a tuft of narrow petaloids.
Mikado (Japan).  One of the best red Japs.  First exhibited in America at the Chicago World’s Fair in 1893 by the Japanese government.  Outer petals wide, dark crimson encircling a cushion of golden petaloids crimson edged and golden tipped.  Each $2.00

Website/Catalog  (1926)  Page(s) [7].  
 
The Japanese peonies are so called because the Japanese have given them more attention than any other people. They are the third stage of doubling. The yellow stamens have become thickened and are almost petals. They may be told from the singles by the fact that they never bear pollen, while the singles always do. They do make seed very freely.
Mikado, Fuyajo, and Some-ganoko are fine reds of different shades.

Website/Catalog  (1921)  Page(s) [6].  
 
Japanese Peonies
Mikado...$2.50

Website/Catalog  (1915)  Page(s) 43.  
 
Japanese Peonies
Including direct importations from Japan, and Kelway's "Imperial" and Hollis' New Seedling Japanese Peonies
A new race of Peonies of a distinct type, forming a separate class, intermediate between the single and the double types, and distinguished by their stamens being transformed into narrow petaloids. [...]
I have retained the Japanese names, with their translation, prefixed by the Amreicannames, which were given to this set by the Peony Society of the American Florists.
Mikado (Barr). Dark crimson, with narrow filamental petals crimson edged and tipped gold. $1.50.

Website/Catalog  (1912)  Page(s) 21.  
 
Japanese Flowered Peonies
603—Mikado. (Japan's Exhibit, Chicago, 1893). Deep red guard petals, enclosing a filigree cushion of golden petaloids. One of last to bloom and probably the best.

Website/Catalog  (1909)  Page(s) 9.  
 
JAPANESE VARIETIES. The following varieties are others’ introduction.
Mikado, deep crimson pink guards, a large flower, golden center ...$ .75

Magazine  (8 Jul 1899)  Page(s) 30.  
 
Societies and Exhibitions.
National Rose Show. July 1.
Miscellaneous.
Hardy Plants were in strong force on this occasion...Messrs. Wallace and Co., Colchester...Some very pretty Pæonies included the lovely Lemon Queen, the incomparable Margaret Attwood with its double row of snowy white petals, and the richly coloured Mikado.

Magazine  (13 Jun 1896)  Page(s) 454.  
 
Floral Committee.
First-class certificates were given to the following:
Pæony The Mikado.—A variety with deep carmine coloured flowers, the central portion orange and carmine; the petals being imbricated added to its appearance. From Messrs. R. Wallace and Co.