Magazine  (1854)  Page(s) 300.  
 
[From "Les Pivoines herbacées", d'après M. William Wood, Horticulteur, à Holdgate]

La classification horticole des pivoines est basée sur le temps de leur floraison :
Le premier groupe comprend les plantes qui fleurissent depuis la seconde semaine d'avril jusqu'en mai;
Le seconde groupe est formé des plantes en fleur de la première semaine de mai jusqu'en juin;
Le troisième groupe renferme les pivoines en fleur de juin jusqu'en juillet.

PREMIER GROUPE : Fleurs ouvertes de la seconde semaine d'avril jusqu'en mai.
1. Paeonia paradoxa simplicifolia.
2. » » fimbriata.
3. » arietina oxoniensis.
4. » » peregrina compacta.
5. » » décora.
6. » » Andersoni.
7. Pæonia arietina Grevillei.
8. » mollis.
9. » tenuifolia.
10. » » flore pleno. 
11. » hybrida.
12. » moutan (arborea).

Ces pivoines se distinguent de celles des autres sections par leur allure moins robuste et parleur croissance plus droite et plus compacte; elles n'ont guère , la plupart, qu'un pied et demi à deux pieds de hauteur.....
Le Paeonia hybrida. C'est une élégante variété, d'une taille moyenne; ses feuilles sentent le fenouil , ses fleurs terminales sont pourpres mais simples.

Book  (1840)  Page(s) 12.  
 
Paeonia hybrida, Pivoine hybrida. Rouge. Mai.

Magazine  (1828)  Page(s) tab 1208.  Includes photo(s).
 
Paeonia* Hybrida. Hybrid Paeony....

* So named by the ancients in memory of Peeon, the physician whom Homer records as having cured Pluto with this herb, when he was wounded by Hercules. We presume its virtues are altogether reserved for such august occasions, they having never been made manifest on any other, as far as we know. The παιονια of Dioscorides evidently appears, by his very particular description, to be our plant. What he distinguishes by the gratuitous appellation of male and female, are now acknowledged to be two species, though Linnaeus considers them as varieties of one, by the name of P. officinalis. — Smith in Rees' Cycl.

P. hybrida; herbacea, folliculis recurvatis pubescentibus, foliis multipartitis: laciniis linearibus acuminatis glabris, flore cernuo foliis longiore.
P. hybrida. Pall. fl. ross. 2. p. 94. t. 86. Willd. sp. pl. 2. 1223. Ait. Kew. ed. 2. 3. 316. Smith in Rees, in loco, no. 10. Decand. syst. 1. 393 ; prodr. 1. 66. Bieb.fl. taur. cauc. 2. 11. et 3. 367.
This is the most beautiful of the cut-leaved Paeonies, from all which it differs strikingly in the deeper red of its flowers. At the time of publishing the Monograph of Paeonia in the Transactions of the Linnaean Society, no other knowledge was possessed of this than was to be gathered from the figure and account given of it by Pallas in his Flora Rossica; and from these imperfect materials it was referred to P. tenuifolia, as a mere variety.
Within a few years roots have been obtained by the Horticultural Society from several quarters, and the study of them in a growing state has now made it evident that it is a genuine species. At least, we have Mr. Sabine's
authority to say that such is his opinion; and this, in the genus Paeony, must have great weight.
From the observations of the same gentleman, we learn that the characters which can be certainly depended upon in distinguishing P. hybrida from P. tenuifolia, are, firstly, the nodding flower of the former, as contrasted with the erect flower of the latter; secondly, the greater length of the peduncle, by which the flower of P. hybrida is elevated distinctly above the leaves, while that of P. tenuifolia is always overtopped by them; and, lastly, in the greater breadth of the leaves of P. hybrida. From P. anomala it is readily separated by its downy, not smooth, fruit.
Pallas states, that he first observed this in the Petersburgh Garden, coming up among P. tenuifolia and P. anomala, whence he inferred that it was hybrid between those two species. He, however, subsequently found it wild in Tauria; and there now appears in the opinion of Russian Botanists to be no ground for the notion of its hybrid origin. It is said, upon the authority of Dr. Fischer, to be wild about the Volga.
According to Marschall von Bieberstein, it is native of grassy places in the promontory of the Caucasus, especially about Stauropolis; but it is very rare in Tauria. The same writer adds, that it propagates itself without variation from seeds; and that P. laciniata of Willdenow, cited to P. tenuifolia by M. Decandolle, is the same as P. hybrida.
Our drawing was made in May 1828, in the Garden of the Horticultural Society. J.L. [John Lindley]

Website/Catalog  (1824)  Page(s) 46.  
 
Paeonia
4. Hybrida

Book  (1820)  Page(s) 68.  
 
Paeonia....hybrida. Perennial. Hardy.

Magazine  (1818)  Page(s) 286.  
 
[Joseph Sabine comments on December 20, 1817 on the first volume of De Candolle's Systema Naturale Regni Vegetabilis, "which has just arrived from Paris"] 
...Our two species P. anomala and P. tenuifolia agree with those of M. De Candolle; but he has kept as a distinct species P. hybrida, adding to the statements of Pallas, the authority of Dr. Fischer, who in his correspondence has assured him he found it growing on the northern side of Mount Caucasus, and that it was not an hybrid plant, but a genuine species. Being fully satisfied that Pallas's plant, figured and described in the Flora Rossica, and which was from a cultivated specimen, is only P. tenuifolia in a state it sometimes assumes, but different from what it usually puts on, I must still continue my opinion of their identity. In Dr. Fischer's Catalogue of the Garden at Gorinki near Moscow, printed in 1808, he does not enumerate P. hybrida. Should this plant, however, after more investigation, prove distinct from P. tenuifolia, I shall rejoice in the circumstance, as our list of species of this charming genus will thereby be increased; but if P. hybrida be distinct, it cannot be set down as one now cultivated in this country.