Book  (1933)  Page(s) 162.  
 
Belle of Portugal (Belle Portugoise). Lisbon Botanical Gardens, 1905. This is an authentic hybrid of R. gigantea, from which it inherits giant growth and superb foliage. Flowers light pink, semi-double, and larger than most. Glorious in California and ought to be planted extensively throughout the South.

Magazine  (Jun 1932)  Page(s) 56.  
 
Belle Portugaise, Souvenir de Léonie Viennot x R. G., rose nacré, teinté saumon.

Website/Catalog  (1931)  Page(s) 5.  
 
Belle of Portugual (Hybrid Gigantea)
This is a strikingly beautiful climber with extremely large flowers of a lovely pink tinged with salmon. It is a vigorous grower, and because of this, blooms very little for a year or two, but thereafter very profusely during early spring.

Book  (1930)  Page(s) 159.  
 
...Hardier varieties resulted from the crossings, in which R. gigantea was used as the father, ...Belle Portugaise descends from the bastardization [crossing] with Souvenir de Leonie Viennot...

Book  (1930)  Page(s) 22.  
 
The Best Climbing and Pillar Roses
For you who love the abandon and vigor of the climbing Rose here is an assortment of Climbers for all climates that is reliable, covers all shades of color, and constitutes, we think, one of the most complete offerings of its kind in America.  Strong 2 and 3 year old, field grown plants that will quickly give a wealth of bloom. We also carry a stock of larger Climbing Roses, with trellises, in tubs for immediate effects.
Belle of Portugal Hybrid Tea (1902)  Very large, soft salmon-pink flowers borne on long stems.  A most vigorous grower, with canes sometimes 25 feet or more long; blooms little the first year or two but thereafter profusely.  ...  $1.00

Magazine  (1929)  Page(s) 307.  Includes photo(s).
 
[Rosa Gigantea And Its Hybrids by H. Cayeaux].
The second cross, that is to say, the Tea rose x R. gigantea, produced several very excellent and beautiful hybrids, chiefly characterized by their soft coloring, their great profusion of blooms, and their greater resistance to cold. Among these we may especially note:
2nd. Belle Portugaise, from Souvenir de Leonie Viennot x R. gigantea. A large and beautiful rose of very delicate coloring—shell pink touched with salmon. The very long buds reach a length, sometimes, of 10 cm. (4 inches), especially when they are produced at the ends of vigorous branches. The flower, when completely open, may measure from 15 to 16 centimeters (6-6.5 inches) in diameter. Grown in a temperate climate, Belle Portugaise attains a great development and is literally covered with its large blooms. It seems to have inherited the great luxuriance possessed by the mother plant, Souvenir de Leonie Viennot; moreover, it is able to produce fertile seeds, and might thus be very usefully employed in hybridization.

Website/Catalog  (1928)  Page(s) 25.  
 
Climbers.
Belle of Portugal. Tea. Burmese species X Rosa Gigantea X Reine Marie Henriette. The blossoms are very large, soft salmon-pink. Supported singly on long stems. It will not stand any great amount of cold, and is for southern planting.

Book  (20 Feb 1912)  Page(s) No. 233, p. 36.  
 
Seeds and plants imported during the period from January 1 to March 31, 1911:
From Lisbon, Portugal. Presented by Mr. Ch. D'Navel, inspector, Botanic gardens. Received February 21,1911. Cuttings of the following hybrids of Rosa gigantea:
29729. Belle Portuguoise.