| Airy Dream | R 24 |
| Aksarben | R 36 |
| Alastor | R 25 |
| Albicans | R 44 |
| Alcazar | S, R 48 |
| Aldebaran | S 24 |
| Algol | S 48 |
| Alhambra | S 50 |
| Alice Harding | R 48 |
| Alinda | R 36 |
| Aline | R 47 |
| Allies | S 33 |
| Al-lu-we | R 49 |
| Alonzo | S 24 |
| Alta California | R 48 |
| Altair | S 48 |
| Amabilis | L 24 |
| Amandine | R 48 |
| Amas | R 48 |
| Ambassadeur | R 50 |
| Amber | R 24 |
| Ambigu | S 23 |
| Amenti | R 49 |
| Amigo | R 49 |
| Amitola | R 48 |
| Andromede | S 36 |
| And Thou | R ± 48 |
| Angelus | R 49 |
| Ann Page | R 48 |
| Aphrodite | R 24 |
| Aphylla | S 43, 44 |
| Aphylla | R & M 44 |
| Aphylla Fieberi | R & M 44 |
| Archeveque | S 24 |
| Arctic | R 48 |
| Arcturus | S 24 |
| Argentina | R 50 |
| Argonaut | R 24 |
| Aspasie | S 24 |
| Astarte | S 24 |
| At Dawning | R 49 |
| Athola | R ± 48 |
| Atroviolacea | R 36 |
| Aubanel | R 49 |
| August Flame | R 42 |
| Augustissima | S 24 |
| Aurea | R 24 |
| Aurea Maculata | R 40 |
| Autauga | R 72 |
| Autumn Fire | R 42 |
| Autumn King | R 46 |
| Avondale | R 50 |
| Aztec Copper | R ± 51 |
| Azurea | S, R 36 |