Article (magazine)  (Jan 1955)  Page(s) 12.  
 
Robert Fortune, the great explorer of the Royal Horticultural Society, made four trips to China and introduced many fine plants to England. In 1846, he brought twenty-five of the finest tree peonies ever to come out of China. Among these were 'Atrosanguinea,' 'Berenice,' 'Bijou de Chusan,' 'Dr. Bowring,' 'Globosa,' 'Glory of Shanghai,' 'Lord Macartney,' 'Pride of Hongkong,' 'Robert Fortune,' 'Samarang,' and 'Zenobia.' These were enthusiastically received and quickly propagated, so that both British and continental nurseries cataloged them in some quantity in the 1860's.

Book  (1907)  Page(s) 109.  
 
1190. HONG KONG, PRIDE OF; P. moutan...(Fortune)
(1) 1865, Horticulturalist, p. 79
(2) 1885, The Garden, Vol. 27, p. 33.
(3) 1896, Jour. of Hort., Vol. 32, 3rd Ser., p. 484.
(4) 1899, L. Paillet's Cat.
(5) 1906, Dessert's Cat., p. 37.

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.
Argueil de Hong Kong [sic], cimson purple

Website/Catalog  (1886)  Page(s) 103.  
 
Select Varieties of Pæonia Moutan.
P. Pride of Hong Kong. Cherry red with purple center; semi-double, large and distinct. $1.50.

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:
Pride of Hongkong... 

Magazine  (1874)  Page(s) 25.  
 
Mr. W. C. Barry... presented the following report:
On Tree and Herbaceous Pæonies.
Tree Pæonies fill up a blank between deciduous flowering-trees and flowering shrubs.  In mixed borders they are invaluable, as well when grown as single specimens on the lawn.  They are quite hardy, but slight protection greatly improves them. [...]
To assist those who desire to form a collection we name the following choice sorts.  Any description, however complete, would fail to do them justice, so we give only the distinguishing colors. 
Pride of Hong Kong. — A striking variety; flowers of great size, light cherry red with purple center.

Website/Catalog  (1873)  Page(s) 61.  
 
Paeonia arborea. Pivoines en arbre.
20. Orgueil de Hong-Kong...4 fr.

Website/Catalog  (1865)  Page(s) 20.  
 
Pivoines en arbre de la Chine.
Orgueil de Hong-Kong, fleur rouge clair...8 fr.

Website/Catalog  (1861)  Page(s) 59.  
 
New Chinese Tree Paeonias introduced by Mr. R. Fortune.
The following magnificent tree-like peonies surpass by the gloss of their colours and the size of their blooms all variety known to-date and distinguish themselves namely also by their partly pure white, partly dark red colouring from all known varieties.
74. Pride of Hongkong (Orgeuil de Hongkong)....2 Prussian Thalers 15 Neugroschen

Website/Catalog  (1861)  Page(s) 31.  
 
Sin prachtvolles Sortiment von Pæonia Moutan (strauchartigen Pfingstrosen).
Pæonia Moutan Pride of Hong-Kong, reich hellpurpur...7 fl.