Book  (Jan 2000)  Page(s) 226.  
 
Caroline of Italy Tree Peony. Origin unknown pre-1846... red

Article (magazine)  (Jan 1955)  Page(s) 56.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Chinese, Pink, 'Carolina d'Italie' (Italy or China bef. 1846), [Gardens] Scott Foundation, Whitnal Park Botanical Gardens, [Nurseries] Oberlin Peony Gardens

Article (magazine)  (Jan 1955)  Page(s) 13.  
 
As the century drew to a close, the references became fewer and fewer. When the old growers died, the desire for large collections of Chinese tree peonies apparently died with thep:l. The varieties they had grown with the possible exception of P. papaveracea had full double flowers. They were so heavy that the stems could not properly support them, with the result that many of the flowers were hidden under the foliage. In addition to the varieties already mentioned, there were being grown under European names, one white, 'Lambertinae'; a few very beautiful salmon pinks and rose pinks such as 'Carolina d'Italie,' 'Comte de Rambuteau,' 'Jeanne d'Arc,' 'Marquis de Clapiers,' 'Mme. Stuart Low,' and 'Mme. Victor Gillier'; a gorgeous rose red or cherry red, 'Reine Elizabeth'; and a fine deep purple, 'Souv. de Ducher.' 

Website/Catalog  (1941)  Page(s) [3].  
 
Tree Peonies
Carolina d'Italie. Loosely built; large; double; beautiful flesh-pink...$6 00

Book  (1917)  Page(s) 112.  
 
Caroline d'Italie, which has finely formed flowers of silvery flesh colour, with a reflex of salmon.
 

Website/Catalog  (1906)  Page(s) 37.  
 
Paeonia arborea. Tree-Peonies. A selection of especially fine double sorts.
Caroline d'Italie, soft salmon-coloured with cream, ruffled, densely filled medium sized cup form.

Website/Catalog  (1890)  Page(s) 32.  
 
Pæonia Arborea (Tree or Moutan Pæonies).
General Collection.
Caroline d'Italie, double, salmon flesh.

Magazine  (20 Apr 1889)  Page(s) 354.  
 
Moutan Paeonies in pots.—Although it is a century since the Moutan or Tree Pæony was introduced into this country, it is by no means a common plant, and is not grown nearly as much as its merits deserve.  Many of the new varieties far excel the typical form both in size and colour of the flowers.  Pæonies will not force early, but grown as pot plants and kept in a cold frame, they produce a grand display of bloom at this time of year.  Being gross feeders they require liberal treatment, and should never be allowed to get dry.  Amongst the best varieties are Reine Elizabeth, Comte de Flandres, Caroline, Impératrice Josephine, and Salmonea.  A fine group of these is a great attraction in the greenhouse at Kew. — F. G.

Website/Catalog  (1866)  Page(s) 58.  
 
Pæonia Arborea. (Pivoines en arbres.)
Livrables en belles plantes.
Carolina d'Italie...6 fr. 

Magazine  (1 Jun 1864)  Page(s) 219.  
 
M. Guérin-Modeste, dépose sur le bureau 5 belles variétés de Pivoines, qui lui valent des remerciments; ces variétés sont Caroline d'Italie, Impératrice Joséphine, Elisabeth, Triomphe de Milan, tenuifolia flore pleno.