Book  (2007)  
 
Isis, J. Mattock 1973
Blooming period: medium
Habit: shrub
Vigour: moderate
Prickles: few, curved
Flower: solitary, sometimes in clusters (4-5); moderate bloom; 43 petals; very full, cupped; diameter 5,5-7,0 cm; depth 2,0-3,0 cm; weak fragrance
Petals: elongated; length 3,1-3,6 cm; width 2,5-3,0 cm; colour of the upper surface white 155 A, reverse white 155 C
Stamens: anthers orange, filaments yellow
Stygmas: free, yellow
Calyx: cupped, with glands and hair
Sepals: reflexed downwards; with appendages
Foliage: length 4,5-6,5 cm, width 4,5-5,0 cm; colour of the upper surface dark green 147 A, reverse olive green 147 B

Website/Catalog  (2000)  Page(s) 107.  
 
FL. Isis, Mattock J., 1973

Book  (Apr 1993)  Page(s) 262.  
 
Isis Floribunda, ivory-white, 1973, 'Vera Dalton' x 'Shepherdess'; Mattock. Description.

Book  (1974)  Page(s) 65.  
 
Dr. A. S. Thomas  Roses Overseas 1973. 
Isis Fl. (Mattock, 1973). ('Vera Dalton' x 'Shepherdess'). A splendid pure white floribunda. Large flowers with 40 petals and a very good plant. Type B (three to seven flowers in each panicle) 

Book  (1973)  Page(s) 221.  
 
John Mattock Ltd. advertisement.
To some people Isis is an ancient Egyptian Goddess.
To Oxonians past and present Isis is the name given to the Thames at Oxford.
To us and we hope in the future to all Rosarians 'Isis' is our new fragrant white floribunda with perfect HT-shaped blooms and just a hint of pink to the centre of the opening bud.