Further Reading:
Classic Roses by Peter Beales
Shrub Roses & Climbing Roses : with Hybrid Tea and Floribunda Roses by David Austin
The English Roses: Class Favorites and new selections by David Austin
In Search of Lost Roses by Thomas Christopher
David Austin's English Roses: Glorious New Roses for American Gardens  by David Austin and Clay Perry
100 Old Roses for the American Garden by Clair G. Martin
Best Rose Guide: A Comprehensive Selection by Roger Phillips & Martyn Rix

Roses introduced after 1867 (some authors say 1920) are considered Modern Roses.

Floribundas
Floribunda roses are characterized by a abundant flower production in large clusters. They are generally hardier, more free flowering and displaying better disease resistance than the Hybrid Teas.

Floribundas were first developed by the firm of Poulsen in Denmark, with the idea to produce hardy roses suitable for the Scandinavian climate.

They were first known as Hybrid Polyanthas, until they were renamed Floribundas in 1950.

Some of the best Floribundas:
Europeana (de Ruiter, 1963)
English Miss (Cant, 1977)
Iceberg (Schneewittchen, Fee des Neiges) (Kordes, 1958)
Korresia (Fresia, Friesia, Sunsprite) (Kordes, 1977) , one of the best yellow Floribundas
Lavender Pinocchio (Boerner, 1948), the best among the lavender and mauve Floribundas
Victoriana (LeGrice, 1977), a Floribunda of most unusual coloring

Grandiflora & Climbing Grandiflora
Hybrid Kordesii
Hybrid Moyesii
Hybrid Musk
Hybrid Tea & Climbing Hybrid Tea
Large-Flowered Climber
Miniature & Climbing Miniature
Mini-Flora
Pernetianas
Polyanthas
Procumbents
Ramblers
Scramblers
Shrubs
Wichuraianas (Hybrid Wichurana)