Article (magazine)  (2006)  Page(s) 68, 71.  
 
p. 68: ...identical phenotypes were found within OGR cultivars for R. xcentifolia L. 'Rubra' and 'Crested Moss', for 'Kazanlik', 'Quatre Saisons Blanc Mousseux' and 'York and Lancaster', and for 'Old Blush' and 'Viridiflora'.

p. 71: ʻCrested Mossʼ, apportioned to the Centifolias (Cairns, 2000) or to the Moss (Beales et al., 1998), is considered by some authors as a seedling of R. ×centifolia (Beales et al., 1998). According to these data, ʻCrested Mossʼ shared the same allelic profile with R. ×centifolia ʻRubraʼ. That it originates from this hybrid accession is thus confirmed but ʻCrested Mossʼ is more likely a sport of the accession ʻRubraʼ than a seedling.

Book  (2002)  Page(s) 36.  
 
Crested Moss 1827. Rated 8.6

Article (magazine)  (2001)  Page(s) 400.  
 
Fig. 1: ['Crested Provence' is closely related to 'Oeillet'. The study differentiates the former from 'Cristata' or 'Chapeau de Napoléon'. Next kin is 'Old Black' = 'Nuits de Young and ' Mignonne Charmante'. Further related is 'Aristobule'].

Book  (2000)  Page(s) 184.  Includes photo(s).
 
‘Crested Moss’/’Chapeau de Napoléon’/’Cristata’: Mousseux… sans doute pas un vrai rosier mousseux, car il est dépourvu de mousse, hormis ces excroissances en crête sur le calice de la fleur… buisson anguleux à port évasé… aiguillons épars mais acérés… feuillage peu fourni, gris-vert, à larges dents de scie… fleurs identiques à celles de ‘Centifolia’ par la forme, la taille et le parfum capiteux, mais d’un ton de rose légèrement plus vif… Fribourg, Suisse, avant 1820. Semis probable de Rosa x centifolia. Award of Garden Merit RHS 1993.

Book  (Apr 1999)  Page(s) 117.  
 
Cristata Moss... distinguished by its crested calyx set in leaves like frilled parsley. Vibert received it from a botanist in Fribourg, who himself found it on an old degenerated Centifolia plant in the garden of a ruined castle...

Website/Catalog  (Jun 1998)  Page(s) 30.  Includes photo(s).

Book  (1997)  Page(s) 158.  Includes photo(s).
 
Moss. ('Chapeau de Napoleon', 'Cristata', 'Crested Moss') Vibert (France) 1826. Description and vital statistics. Chance discovery. Fully double, highly scented, cabbage-like, silvery deep pink flowers... moss formation on the calyx... is shaped like a cocked-hat, hence the name...

Book  (Oct 1996)  Page(s) 53.  Includes photo(s).
 
Chapeau de Napoléon ('Cristata', 'Crested Moss') Description... The fringed and mossy sepals project from the buds in such a way that they resemble little three-cornered hats like the French tricorne that Napoleon often wore. Full pink flowers paling to silvery mauve...

Book  (1995)  Page(s) 59.  Includes photo(s).

Book  (1994)  Page(s) 19.  
 
Chapeau de Napoleon... the botanical name is Rosa centifolia cristata... The sepals which guard the unopened bud have sported crested wing-like growths such that they resemble the cockade on an 18th century general's hat...