Book  (11 Jun 1993)  Page(s) 47.  
 
Parentage unknown. Van Fleet (USA) 1905. Description... The large 3 1/2-inch blossoms are very similar in form and color to those of 'Hansa' but the blossoms of 'Rugosa Magnifica' are slightly less double with a more open appearance. Also the light yellow stamens are more visible... do not confuse with the R. eglanteria hybrid 'Magnifica'.

Book  (11 Jun 1993)  Page(s) 47.  Includes photo(s).

Book  (May 1992)  Page(s) ii.  Includes photo(s).

Book  (1967)  
 
Of the Rugosas, best are 'Belle Poitevine', 'Magnifica', and 'Hansa'. Don't underestimate loud, shapeless 'Hansa'. It is tremendously fragrant, and if you cannot abide its harsh cerise, plop every one into the 'rotting pot'. Other Rugosas smell as good, but these three have the most petals and make dense plants that never stop blooming.

Book  (1936)  Page(s) 444.  
 
Magnifica (hybrid rugosa) Dingee & Conard 1909; R. rug. X V. Hugo; dark blood-red, large, double, firm, repeats, upright stems, broad foliage, growth 7/10, climbing, 1,20m. Sangerhausen

Book  (1936)  Page(s) 634.  
 
R. rugosa magnifica (hybrid rugosa) Dingee & Jones 1906; R. rug. X Victor Hugo; glossy crimson-purple, 8cm., double, floriferous, repeats well, rugosa foliage, growth 8/10, upright, 1m., Sangerhausen

Book  (1936)  Page(s) 634.  
 
R. rugosa magnifica (hybrid rugosa) Dr. van Fleet 1900; R. rug. x Ards Rover; ?

Magazine  (Jul 1930)  Page(s) 90.  
 
Hybrides de R.rugosa ... Magnifica. — Turbat (?), fl. pleine, rouge sang foncé

Book  (1924)  Page(s) 190.  
 
RUGOSA MAGNIFICA. Van Fleet; intro. by Conard & Jones Co., 1905. (R. rugosa X Ards Rover.) Very hardy. Dark to brilliant carmine; large; fragrant. Claimed to be continuous bloomer from spring to frost. Catalogued by Conard & Jones Co., West Grove, Pa.

Magazine  (15 Jul 1911)  Page(s) 338.  
 
The Parentage of Roses.
The following list of the world's Roses and their parentage has been compiled by Mr. Robert Daniel, 38 Russell Road. Fishponds, Bristol, and by his kind permission we are enabled to publish it...
Magnifica... Hybrid Rugosa, D. and Conard, 1909, R. rugosa X Victor Hugo