Book  (1936)  Page(s) 513.  
 
Nigrorum (Provins) Calvert ca. 1845; velvety dark purple-violet, small, double.

Book  (1906)  Page(s) 12.  
 
8.236. Nigrorum, Provins, Calvert, violet très foncé

Book  (1837)  Page(s) 34.  
 
Rosa gallica.
Mit schwärzlichen Blumen:
nigrorum...

Rosa gallica.
With almost black dark flowers:
nigrorum...

Website/Catalog  (1837)  Page(s) 5.  
 
The Summer Rose Garden.
French Roses (Rosa gallica).
Nigrorum Superbum...very dark crimson, compact, small and double.

Book  (1836)  Page(s) 103.  
 
Gallica Sammetartig.
Nigrorum superbissima. Prächtig, schwachriechend.
Blumenkrone sehr dunkelpurpurviolett, sammetartig, bei 1½ Zoll breit, gefüllt.

Velvety Gallica Roses.
Nigrorum superbissima. Magnificent, not very fragrant.
The double flower is a velvety dark purple-violet, about 1½ inches across.

Magazine  (1835)  Page(s) 266.  
 
A Description of Roses. By Mr. T. Rivers, jun., Nurseryman, Sawbridgeworth, Hertfordshire.
In attempting a descriptive catalogue of Roses, I hope to be excused errors, which it seems almost impossible wholly to avoid. Roses vary so much in their form and colour in different seasons and situations, as sometimes scarcely to be recognised... what I hope to accomplish is, to give an idea of what they ought to be in form and colour, under favourable circumstances of soil and situations; and where there is so much confusion as at present in the names and arrangement of Roses, to be among the first in attempting a correct nomenclature.
Rosa gallica (or French Roses.).
Nigrorum superbum, very dark crimson, compact, small and double.

The following terms are used to express the form of the Flower:
Compact.—Petals stiff, close and upright, resembling a double Ranunculus.

Book  (1829)  Page(s) 113.  
 
Rosiers Galliques-Provins.
446. Nigrorum, M. Calvert, à Rouen.
Fleur petite, pleine, veloutée, pourpre violet très-foncé.