+ | Cicendia filiformis | GB, VC4 North Devon | Thomas Richard Archer Briggs | Charles Bailey William Moyle Rogers | 9/1883 | MANCH |
+ | Cicendia filiformis | GB, VC1 West Cornwall, Porthcurnow | Thomas Richard Archer Briggs | Charles Bailey | 26/7/1866 | MANCH |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Plymbridge | Thomas Richard Archer Briggs | Elizabeth Anne Lomax | 23/8/1877 | MANCH |
+ | Mentha arvensis x spicata = M. x gracilis | GB, VC3 South Devon, Plym Valley | Thomas Richard Archer Briggs | Charles Bailey | 23/8/1867 | MANCH |
| Carex paniculata x remota = C. x boenninghauseniana | GB, VC3 South Devon, Caton | Thomas Richard Archer Briggs | Botanical Exchange Club Charles Bailey | 18/7/1879 | MANCH |
| Rumex conglomeratus x pulcher = R. x muretii | GB, VC2 East Cornwall, Torpoint Cultivated | John Thomas Irvine Boswell-Syme Thomas Richard Archer Briggs | Botanical Exchange Club Charles Bailey | 9/1879 | MANCH |
+ | Viola lactea | GB, VC3 South Devon | Thomas Richard Archer Briggs | Botanical Exchange Club Charles Bailey | 30/5/1877 | MANCH |
+ | Viola lactea | GB, VC3 South Devon, Plymouth | Thomas Richard Archer Briggs | Botanical Exchange Club Charles Bailey | 16/6/1879 | MANCH |
| Anthoxanthum aristatum subsp. puelii | GB, VC3 South Devon, Newton Ferrers | Thomas Richard Archer Briggs | London Botanical Exchange Club Robert Large Baker | 3/7/1876 | BIRM |
| Carex punctata | GB, VC3 South Devon, Bigbury Bay | Thomas Richard Archer Briggs | London Botanical Exchange Club Robert Large Baker | 7/1876 | BIRM |
| Crassula tillaea | GB, VC3 South Devon, Rumple Quarries | Thomas Richard Archer Briggs | London Botanical Exchange Club | 23/4/1872 | BIRM |
| Drosera intermedia | GB, VC2 East Cornwall, Viverdon Down | Thomas Richard Archer Briggs | London Botanical Exchange Club Robert Large Baker | 8/8/1865 | BIRM |
| Rumex | GB, Cornwall | Thomas Richard Archer Briggs | London Botanical Exchange Club Robert Large Baker | | BIRM |
| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Plym Valley | Thomas Richard Archer Briggs | Charles Cardale Babington | 29/8/1877 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Cardale Babington | 7/9/1877 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC2 East Cornwall, Carkeel | Thomas Richard Archer Briggs | Charles Cardale Babington | 19/9/1873 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Cardale Babington | 30/8/1881 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Cardale Babington | 30/8/1881 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC3 South Devon, Diptford | Thomas Richard Archer Briggs | Charles Cardale Babington | 18/8/1881 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC3 South Devon, Aveton Gifford | Thomas Richard Archer Briggs | Charles Cardale Babington | 5/8/1880 | CGE |
| Carduus crispus x nutans = C. x stangii | GB, VC3 South Devon, Elburton | Thomas Richard Archer Briggs | Charles Bailey | 8/7/1871 | MANCH |
| Carex montana | GB, VC3 South Devon, Roborough Down | Thomas Richard Archer Briggs | Charles Bailey | 2/6/1873 | MANCH |
| Galium verum x mollugo = G. x pomeranicum | GB, VC3 South Devon, Wembury | Thomas Richard Archer Briggs | Charles Bailey | 22/7/1875 | MANCH |
| Galium verum x mollugo = G. x pomeranicum | GB, VC2 East Cornwall, Whitsand Bay | Thomas Richard Archer Briggs | Charles Bailey John Harbord Lewis | 14/7/1869 | MANCH |
| Galium verum x mollugo = G. x pomeranicum | GB, VC3 South Devon, Mothecombe | Thomas Richard Archer Briggs | Charles Bailey | 16/7/1873 | MANCH |
+ | Hypochaeris glabra | GB, VC3 South Devon, Torquay,Dawlish Warren | Thomas Richard Archer Briggs | Charles Bailey | 24/5/1874 | MANCH |
+ | Lobelia urens | GB, VC2 East Cornwall, Bodmin (Se of),Lostwithiel | Thomas Richard Archer Briggs | Botanical Exchange Club of The British Isles Charles Bailey | 10/10/1883 | MANCH |
+ | Mentha arvensis x aquatica = M. x verticillata | | Thomas Richard Archer Briggs | Charles Bailey | 17/8/1867 | MANCH |
+ | Mentha arvensis x spicata = M. x gracilis | GB, VC3 South Devon, Common Wood | Thomas Richard Archer Briggs | Charles Bailey | 4/9/1867 | MANCH |
+ | Physospermum cornubiense | VC 2 | Thomas Richard Archer Briggs | Charles Bailey | 7/7/1874 | MANCH |
+ | Physospermum cornubiense | VC 2 | Thomas Richard Archer Briggs | Charles Bailey | 6/8/1874 | MANCH |
+ | Physospermum cornubiense | GB, VC3 South Devon, Blaxton | Thomas Richard Archer Briggs | Charles Bailey | 7/1868 | MANCH |
+ | Puccinellia fasciculata | GB, VC3 South Devon, Crabtree | Thomas Richard Archer Briggs | Charles Bailey | 26/6/1875 | MANCH |
+ | Pyrus cordata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Bailey | 18/5/1881 | MANCH |
+ | Pyrus cordata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Bailey | 4/5/1871 | MANCH |
+ | Pyrus cordata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Bailey Elizabeth Anne Lomax | 13/8/1875 | MANCH |
+ | Pyrus cordata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Bailey | 11/5/1877 | MANCH |
+ | Pyrus cordata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Bailey | 13/8/1876 | MANCH |
+ | Pyrus cordata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Bailey | 13/9/1881 | MANCH |
+ | Pyrus cordata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Bailey | 18/5/1881 to 13/9/1881 | MANCH |