Book  (1928)  Page(s) 101.  
 
Descriptive List of Chinese Peonies
Grandiflora. (Richardson, 1883.) 8.8.
Double type; very large; very late. Bright pink, shaded old-rose and white, with some yellow at base of petals; fragrant. Tall; floriferous; weak stems. Heavy foliage.
Immense, flat flowers of attractive color. Useful for extending the season because it is one of the last varieties to bloom.
"I should call it bright rose-pink. It does not give the impression of having old-rose or white in it, or any yellow to speak of."—Saunders.
"I agree with Dr. Saunders. It has considerable blue. The petals have a tendency to roll up, giving a pointed effect like a pond-lily. It is a very distinct and beautiful flower."—Thurlow.

NB: Two of Richardson's peonies were called 'Grandiflora'; this likely accounts for the differing descriptions.

Website/Catalog  (1927)  Page(s) 16.  
 
Grandiflora (Richardson 1885) 
American Peony Society Rating of 8.8 (62 votes)
Bright shell pink overlaid with delicate shades of lilac and salmon.  Beautiful rose type.  Very late.  Each $2.00

Book  (1923)  Page(s) 18.  
 
A Third Selection of Choice Peonies
Alpheus Hyatt is one of John Richardson's fine seedlings. Less well known than Walter Faxon, Milton Hill, and Grandiflora, it is beginning to receive the appreciation which it deserves. Four years ago I bought it for one dollar a root. To-day I note that it is listed by some dealers at five dollars. Its soft rose-pink color is unusually lasting, even when unscreened in the garden. The flower is large, double, and flat. It equals—and in the opinion of many it surpasses—Elwood Pleas, a recently introduced variety which is much more expensive.

Website/Catalog  (1920)  Page(s) 11.  
 
Double Flowering Peonies
Alpheus Hyatt. (Richardson.) Large flower, uniform rose-pink. Rose type. Late....$2.00

Website/Catalog  (1918)  Page(s) 13.  
 
Paeonia albiflora: Richardson Seedlings.
The following Peonies are seedlings raised by the late Mr. John Richardson of Dorchester, Mass., who was well known as a very skillful horticulturalist. The Peonies that he originated include some of the finest known varieties.
Alpheus Hyatt. Beautiful rose pink, petals a uniform color throughout, very large, perfectly double, a flat flower and late. Extra. $1.00.
In my list published in 1916 I called this variety Grandiflora. As the name Grandiflora is in current usage in the trade for one of Mr. Richardson's seedlings which is totally distinct (see p. 14) last year I dropped that name for this variety and revived the name Alpheus Hyatt which I gave to it many years ago.

Book  (1907)  Page(s) 113.  
 
1236. HYATT. ALPHEUS; P. albiflora.
(1) 1904, Trans. Mass. Hort. Soc., part 1, p. 181.

Book  (1904)  Page(s) 3.  
 
Richardson’s Seedlings.
Grandiflora, bright flesh pink...$1.00

Magazine  (1904)  Page(s) 181.  
 
"John Richardson: His House and Garden." By Robert Tracy Jackson, Cambridge, Mass.
Presented for publication, October, 1904.
Description of Mr. Richardson's Seedling Peonies.
The following is a list with descriptions of the Richardson seedling peonies, with synonyms where such exist and the awards they have received; these awards were all made by the Massachusetts Horticultural Society, so that for the sake of brevity the name of the Society is not further mentioned. The date of blooming this year is given, and also the height. The height was taken in August, and measures the distance from the ground to the calyx of the flower; with the flower, therefore, some inches would be added as a maximum height. The whole set of eighteen varieties was exhibited this year before the Society either on June 5, 11, or 21-22.
Grandiflora. Named by Mr. John C. Hovey (synonym Alpheus Hyatt). Beautiful light rose pink, cupped in opening, quite flat when fully opened, petals nearly uniform throughout, very large, I have had flowers measuring nine inches in diameter. Flowers tend to bend over from their own weight and a not very rigid stem, perfectly double, no stamens or stigmas showing, a splendid flower. In bloom 15 Junr 1904, height to flower 43½ inches. Exhibited by Mr. John C. Hovey, 26 June 1883, when it received a First Class Certificate of Merit. Transactions of the Society for 1883, Part 2, p. 222 and 252. Named for its size, perhaps the greatest in diameter of any of the Richardson seedlings.

Website/Catalog  (1903)  Page(s) 4.  
 
DOUBLE HERBACEOUS PAEONIES ...Richardson Seedlings. $1.50 each
Grandiflora, bright flesh pink, fragrant.