Article (magazine)  (2017)  
 
In its origins “Félicité et Perpétue” is a diploid hybrid between a recurrent-flowering rose, probably a Noisette rose, and R. sempervirens which is seasonal flowering. From the Noisette rose it inherited the disabled form of RoKSN and from R. sempervirens it inherited wild-type RoKSN. Both forms of RoKSN can be detected in shoot apices of “Félicité et Perpétue” but only the disabled RoKSN can be detected in “Little White Pet” (Iwata et al., 2012). This indicates that the mutation from “Félicité et Perpétue” to “Little White Pet” resulted from a deletion of wild type RoKSN.

Booklet  (2009)  Page(s) 40.  
 
The last group that shows a clear cluster contains all but two of the Polyantha class roses ['White Pet' ex Antique Rose Emporium (closer to Chinas) and 'Perle d'Or' ex Chamblee's (closer to Teas)] and both R. multiflora accessions, though not R. multiflora var. cathayensis.

Booklet  (2009)  Page(s) 29.  
 
Diploid....White Pet, heterozygous loci 78% [Provenance: Antique Rose Emporium]

Website/Catalog  (2007)  Page(s) 29.  Includes photo(s).
 
Little White Pet

Magazine  (2007)  Page(s) 21. Vol 21, No. 2.  Includes photo(s).
 
Jean-Claude Nicolas. Roses of the Ardennes.
[Photo] 'Belle de Teheran' (Little White Pet) from Joigny-sur-Meuse....

Book  (2001)  Page(s) 92.  
 
White Pet Polyantha, white, 1879. Rating: 8.5

Magazine  (2001)  
 
[From "Antoine Jacques - Head Gardener to Louis Philippe", by Barbara Tchertoff, Part II]
‘Little White Pet’ (Henderson, 1879). Here, genetic analyses have put paid to various arguments throughout the years that this delightful small bush rose is – or is not – related to ‘Félicité-Perpétue’. With the use of 3 separate primers, Professor Jay has proved (as is visible in the illustration) that F (‘Félicité-Perpétue’) is identical with L (‘Little White Pet’), proving that this repeat-flowering bush is a “sport” of the non-remontant rambler ‘Félicité-Perpétue’.
Since ‘Félicité-Perpétue’ appears to be sterile, it is to be supposed that Henderson managed either to graft or to strike a cutting from a branch which had re-flowered . The nineteenth century rose growers often speak of “fixing” a sport and new varieties of roses appeared quite frequently thanks to this method of preservation.

Book  (2000)  Page(s) 627.  Includes photo(s).
 
‘White Pet’/’Little White Pet’: Polyantha - blanc, remontant… Il est multiplié, non sans mal, par les rosiéristes spécialisés depuis plus de 120 ans… Henderson, USA 1879. RHS Award of Garden Merit, 1993.

Article (magazine)  (Jun 1999)  Page(s) 71.  Includes photo(s).
 
Little White Pet

Book  (Nov 1998)  Page(s) 97.  Includes photo(s).
 
Little White Pet