Newsletter  (Feb 2014)  Page(s) 25.  
 
Another synonym for this rose has been ‘Rose du Roi a Fleurs Pourpres’—indicating that it is far more purple than ‘Rose du Roi’. As such it is supposedly an 1819 sport of ‘Rose du Roi’. Graham Thomas declares it “bears no resemblance to Rose du Roi” and so considers this appellation a misnomer. But Peter Harkness and Mary Moody disagree: “This variety closely resembles Rose du Roi but the flowers are slightly more double and of a deeper color.” Are the two parties looking at the same rose? Both give the year as 1819. On the other hand, Phillips and Rix list the rose as a Portland of 1844, as does Brent Dickerson. Dickerson definitely differentiates between the two. It seems that ‘Mogador’, a sport of ‘Rose du Roi’ has been confused with ‘Rose du Roi a Fleurs Pourpres’, another but earlier sport of ‘Rose du Roi’. The differing descriptions—and these are not the only ones—suggest that the two are not one and the same.

Book  (2005)  Page(s) 96.  Includes photo(s).
 
Portland. Rose du Roi à fleurs pourpres... As its name indicates, this passes as a sport of 'Comte Lelieur' ('Rose du Roi'), but it does not have many of its characteristics. Besides, the bibliography often states 'Roi des Pourpres' as synonym. This seems to be an error, 'Roi des Pourpres' being a gallica variety from Descemet, before 1810 (and consequently before 'Comte Lelieur', 1819). Also the date and breeder needs still to be precised, even the synonym 'Mogador' which is sometimes attributed.

Website/Catalog  (2000)  Page(s) 56.  
 
"Rose du Roi a Fleurs Pourpres".   HP. rrr / fff / 5.  Unknown, unknown.  [Provenance: Lowe; Beales].
The correct rose of this name should be a seedling sport of 'Rose du Roi' with deep mauve flowers. Apart from the colouring of the flowers, this variety is quite a different plant;  an arching, spreading grower, the blooms are globular, opening flat, a deep glowing claret-red, with soft yellow stamens.

Book  (1997)  Page(s) 178-179.  Includes photo(s).
 
Rose du Roi à Fleurs Pourpres ('Roi des Pourpres', 'Mogador') Portland. 1819. Said to be a sport of 'Rose du Roi'. Description and cultivation... flowers: red-violet-purple...

Article (newsletter)  (1996)  Page(s) 45.  
 
[Joyaux lists it with a "?"] Descemet was another great rose grower of the Empire period. His nursery was at St-Denis near Paris. In 1815 his nurseries were destroyed during the war and at that time he had imported or bred more than a hundred Gallicas -- in fact 109 are known. Only 15 of these remain -- this is one of them.

Book  (Nov 1994)  Page(s) 147.  
 
Rose du Roi à fleur pourpre Hybrid Perpetual. 1819. ('Mogador') A sport from 'Rose du Roi'. Description... richest vinous crimson, fading to a wonderful purple tone in good conditions... It is doubtful whether this rose is correctly named; it bears no resemblance to 'Rose du Roi'...

Book  (Apr 1993)  Page(s) 517.  
 
Portland (OGR), mauve, 'Rose du Roi' sport; 1819. Flowers purplish.

Book  (Feb 1993)  Page(s) 80.  Includes photo(s).
 
Rose du Roi à Fleurs Pourpres Portland. Parentage: Sport of 'Rose du Roi'. (aka 'Roi des Pourpres', 'Mogador') France 1819. Description and cultivation. This variety closely resembles 'Rose du Roi' but the flowers are slightly more double and of a deeper colour...

Book  (1993)  Page(s) 83.  
 
Portland ('Roi des Pourpres', 'Mogador'). Said to be a sport of 'Rose du Roi' but there is some doubt about this. Flowers: purple. Introduced 1819.

Book  (Jun 1992)  Page(s) 21.  
 
('Mogador', 'Rose du Roi a Fleurs Pourpres') Listed under Damask Perpetuals. Varangot, 1844. Sport of 'Rose du Roi'. Descriptive information from primary sources.