Magazine  (12 May 1894)  Page(s) 602.  
 
Societies.
Royal Horticultural.
Floral Committee.
Messrs. H. Cannell & Sons, Swanley...had a number of cut blooms of Tree Pæonies of much merit. Amongst these were noticeable M. Kleyer, a very fine large rose-coloured flower; Gloria Belgarum, also large and much deeper colour; and Charles Rozier, pure white. Vandermail is the name of another good white variety.

Magazine  (22 Jan 1887)  Page(s) 77.  
 
The Tree Pæony. 
...For the last twenty years or longer we have had to look to our French neighbours for new sorts of Tree Pæony, for since they have taken the work of hybridising and raising seedlings in hand they have supplied us with all the finest sorts.  Until now the list is long- too long, in fact, for names are given where very shadowy differences exist.
List of select Varieties.
Vandermaeli, pale blush

Magazine  (26 Feb 1876)  Page(s) 197.  
 
The Best Tree Peonies.
The following list contains some of the very best varieties of tree Peonies or Moutans at present in cultivation; I obtained it from my friend M. Charles Verdier, of Paris, who makes Peonies his special study; among them, as will be seen, are few novelties, but M. Verdier states that the newer varieties are generally inferior to the older kinds:
Vandermaelii, blush, almost white...

Magazine  (29 Jun 1872)  Page(s) 701.  
 
The Best Pæonies.
In examining a collection of Herbaceous and Tree Pæonies lately, we have decided that (although all are ornamental) there are in reality but a few worthy of cultivation. Of these the following is a list:
Tree Pæonies: Bijou de Chusan, Carolina, Colonel Malcolm, Comte de Flandres, Donckelaarii, Elizabeth, fragrans maxima plena, Lambertiana, La Ville de Saint Denis, Louise Mouchelet, Madame Stuart Low, Osiris, Ranieri, Jules Pirlot, Rinzii, Rosa Mundi, Triomphe de Vandermalin, Vandermaelii, Van Houttei, and Zenobia.

Website/Catalog  (1865)  Page(s) 20.  
 
Pivoines en arbre. Pæonia arborea.
Vandermaeli, fleur blanc rosé passant au blanc pur...3 fr.

Magazine  (Jun 1864)  Page(s) 163.  
 
La seconde Exposition partielle de la Société impériale et centrale d'horticulture de France a eu lieu à Paris du 14 au 19 mai dernier. ... Dans celui de M. Dupuy-Jamain, c'étaient lilacina major plenissima, lactea, Vandermalleni, Athlète, triomphe de Vandermallen, Mariana d'Italie, M^me de Vatry, Ville de Saint-Denis. 

Website/Catalog  (1861)  Page(s) 58.  
 
Paeonia arborea.
59. Vandermaelenii (Belgium)......20 Neugroschen.

Website/Catalog  (1860)  Page(s) 28.  
 
Chinese Tree Pæonies. — Pæonia Moutan.
These are the most splendid and showy of all flowering shrubs, and among the most rare.
The flowers are mostly fragrant, and all are double, unless denoted otherwise.  They are perfectly hardy, and will withstand the winters of our most northern States and the Canadas.  They bloom in May, ten to fifteen days before the Chinese Herbaceous varieties.
The following are imported varieties.  We can supply extra size plants of most of the varieties, at a moderate advance in prices.
97.  Vandermaeli (Triomphe de)...  Monstrous, pale blush, centre rosy purple, full, splendid...  $2.00 to $3.00 

Website/Catalog  (1857)  Page(s) 9.  
 
Pivoines en Arbres .... Vandermaelii (Belgique), fleur très-grande, pleine, blanche, légèrement rosée ... 3 francs

Magazine  (1 Sep 1855)  Page(s) 203.  
 
Les variétés les plus remarquables sont : Athlète (Mouchelet). Blanche de Noisette (Noisette). Carolina (Manetti). Christina (Manetti). Comte de Flandres. Elisabeth. Fragrans maxima plena. Joséphine Imperatrix (His). La Ville de St-Denis (Mouchelet). Lactea. Lambertinæ (Makoy). Lilacina major plenissima. Louise Mouchelet (Mouchelet). Madame de Vatry (M. G.) Neumannii. Prince Troubetzkoi. Ranierii. Rinzii. Rubra adorata plenissima. Savii. Triomphe de Malines. Triomphe de Vandermaelen. Vandermaelii. Van Houttii.
Eugène VERDIER fils aîné.