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, Purple, 'Col. Malcolm' (Chin.-For. 1846), [Nurseries] Cottage Gardens

Website/Catalog  (1924)  Page(s) 151.  
 
Pivoines en arbre...Colonel Malcolm.- Grande, pleine, globuleuse, pourpre violacé clair.

Book  (1907)  Page(s) 140.  
 
1876. MALCOLM, COLONEL; P. moutan...(Fortune)
(1) 1863, Revue Horticole, p. 292.
(2) 1878, The Garden, Vol. 9, p. 197.
(3) 1885, The Garden, Vol. 27, p. 33.
(4) 1889, L. Paillet's Cat.
(5) 1906, Kelway's Cat., p. 176.

Book  (1898)  Page(s) 107.  
 
La Pivoine en arbre a fourni à la culture un grand nombre de variétés horticoles, les unes obtenues en Chine, et d'autres en Europe...Quant aux variétés horticoles, elles sont si nombreuses que nous ne pouvons citer que les plus remarquables.
Principales Variétés Horticoles
[Colonel] Malcolm Fortune (Chine).—Grande fleur très pleine, violet vif.

Website/Catalog  (1890)  Page(s) 32.  
 
Pæonia Arborea (Tree or Moutan Pæonies).
General Collection.
Colonel Malcolm, double, clear lilac.

Magazine  (26 May 1888)  Page(s) 658.  
 
Tree Pæonies.—Those gorgeous flowers of spring are now at their best in southern gardens. Mr. T. S. Ware forwarded to us a show-box full of very large sized blooms, the best of which were Reine Elizabeth, nice shade of pink; Aissina, white with crimson centre; Donklaari, flesh colour, very full; Rinzii, rosy-purple; Colonel Markham, purple; and Blanche de Noisette, white, with some tinge of purple at the base of the petals.

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.
Colonel Malcolm, deep violet purple

Magazine  (10 Jan 1885)  Page(s) 33.  
 
Tree Pæonies.
By way of reply to Mr. Frank Miles, who seeks information respecting Tree Pæonies, I send you herewith the names of the original Chinese varieties, all or most of which were introduced by Fortune:
Colonel Malcolm... 

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:
Colonel Malcolm, violet...

Website/Catalog  (1873)  Page(s) 61.  
 
Paeonia arborea. Pivoines en arbre.
5. Colonel Malcolm. Große prächtige Blume, dunkellila. Fleur très-large, lilas pourpre, extra...5 fr.