The Gardening World Illustrated (10 Jun 1893)  Page(s) 642.  
 
Single Pæonies.
These are now mostly out of bloom, but in spite of the dry weather, they made a fine display during last month, and might have been seen at their best as early as the first week in May, in the nursery of Messrs. Barr & Son, Long Ditton, Surrey. [...]
There are several distinct varieties of P. arietina, differing chiefly in the size and colour of the flowers. P. arietina Purple Emperor has rich dark purple flowers; and in the case of P. arietina Diogenes, they are of a rich rose red.

The Gardening World Illustrated (10 Jun 1893)  Page(s) 642.  
 
Single Pæonies.
These are now mostly out of bloom, but in spite of the dry weather, they made a fine display during last month, and might have been seen at their best as early as the first week in May, in the nursery of Messrs. Barr & Son, Long Ditton, Surrey. [...]
There are several distinct varieties of P. arietina, differing chiefly in the size and colour of the flowers. P. arietina Purple Emperor has rich dark purple flowers; and in the case of P. arietina Diogenes, they are of a rich rose red.

The Gardening World Illustrated (10 Jun 1893)  Page(s) 642.  
 
Single Pæonies.
These are now mostly out of bloom, but in spite of the dry weather, they made a fine display during last month, and might have been seen at their best as early as the first week in May, in the nursery of Messrs. Barr & Son, Long Ditton, Surrey. [...]
There are several distinct varieties of P. arietina, differing chiefly in the size and colour of the flowers. Those of P. arietina Rosy Gem are of large size, deep rosy-purple, and consist of eight or nine petals.

A Peony Check-List (1907)  Page(s) 93.  
 
978. GEM, ROSY; P. arietina.
(1) 1893, The Gardening World, Vol. 9, p. 642.
(2) 1899, Peter Barr & Son's Cat.
(3) 1900, Cyc. Am. Hort., p. 1191.
(4) Cornell Plot Nos. 694, 1632.

The Gardening World Illustrated (10 Jun 1893)  Page(s) 642.  
 
Single Pæonies.
These are now mostly out of bloom, but in spite of the dry weather, they made a fine display during last month, and might have been seen at their best as early as the first week in May, in the nursery of Messrs. Barr & Son, Long Ditton, Surrey. [...]
The flowers of P. corallina are of a rich dark purple, and showy, but the ornamental character of the flowers is greatly augmented by the bright coral red colour of the stems, petioles and ribs of the leaves; the segments of the latter are broad, ovate or cordate and very distinct. 

The Gardening World Illustrated (10 Jun 1896)  Page(s) 642.  
 
Single Pæonies.
These are now mostly out of bloom, but in spite of the dry weather, they made a fine display during last month, and might have been seen at their best as early as the first week in May, in the nursery of Messrs. Barr & Son, Long Ditton, Surrey. [...]
The flowers of P. anemonæflora are rich crimson, with very numerous yellow anthers that are very prominent in the centre.

The Gardening World Illustrated (10 Jun 1893)  Page(s) 642.  
 
Single Pæonies.
These are now mostly out of bloom, but in spite of the dry weather, they made a fine display during last month, and might have been seen at their best as early as the first week in May, in the nursery of Messrs. Barr & Son, Long Ditton, Surrey. [...]
A floriferous and strong growing Pæony is P. decora, with rosy pink or purple, fragrant flowers. The leaves have long, linear-oblong segments that are decidedly glaucous, particularly beneath.

The Gardening World Illustrated (10 Jun 1893)  Page(s) 642.  
 
Single Pæonies.
These are now mostly out of bloom, but in spite of the dry weather, they made a fine display during last month, and might have been seen at their best as early as the first week in May, in the nursery of Messrs. Barr & Son, Long Ditton, Surrey. [...]
The flowers of Pæonia Sabinii are brilliant red, and consist of about eight petals. 

Kelway's Pæonies, Langport, Somerset (1927)  Page(s) 26.  
 
May-Flowering Herbaceous Pæonies, Single and Double
The dates of flowering are approximate only.
Officinalis splendens (or fulgens), single, deep-glowing, oxblood red (R. de C. 94). A very rich, full, dark crimson colour. Large gold anthers, linear foliage; third week in May. 3/6 each. 

Revue Horticole (1 Jun 1900)  Page(s) 294.  
 
Les Plantes Nouvelles au Concours Temporaire du 23 Mai à l'Exposition Universelle
M. Dessert, horticulteur à Chenonceaux (Indre-et-Loire) avait supporté une superbe collection de Pivoines herbacées. [...] Une mention spéciale est due aux fleurs simples d'une espèce du plus beau rouge de Chine orangé exposée sous le nom de Pæonia lobata. Nous avons eu le regret de ne pouvoir l'identifier, car le nom de P. lobata est un simple synonyme qui a été quatre fois répété: par Boissier pour le P. corallina; par Desfontaines pour le P. officinalis; par Pallas pour le P. anomala; par Reichenbach pour le P. peregrina. Nous reverrons la plante en mielleures échantillons; elle pourra peut-être servir à de nouvelles hybridations.