Book  (Apr 1993)  Page(s) 29.  
 
Arthur Young Moss, dark purple, 1863, Portemer. Description.

Book  (1990)  Page(s) 55.  
 
Arthur Young Moss. Portemer 1863. Description.

Book  (1940)  Page(s) 12.  
 
Arthur Young Moss. (Portemer 1863)... dark purple

Book  (1936)  Page(s) 765.  
 
Young, Arthur (moss) Portemer 1863; velvety dark purple, large, double, once-blooming, growth 7/10.

Book  (1899)  Page(s) 14.  
 
Arthur de Young, centifolia muscosa, Portemer, 1863, pourpre velouté

Book  (1880)  Page(s) Annex, p. 12.  
 
moss, Arthur de Young (Portemer fils), dark purple, large, double

Book  (1866)  Page(s) 201.  
 
Moss Roses.
Arthur Yong [sic].

Book  (1863)  Page(s) 165.  
 
New Roses.
4. Arthur Young (Moss), flowers very dark purple, cupped, large, full, and well formed, growth vigorous.