| Carex oederi | IE, VCH39 Co. Antrim, Lough Neagh | Richard Charles L'Estrange Burges | | 9/8/1949 | BIRM |
| Sedum album | IE, VCH39 Co. Antrim, Lough Neagh | Richard Charles L'Estrange Burges | | 9/8/1949 | BIRM |
| Limonium humile | IE, VCH38 Co. Down, Strangford Lough | Richard Charles L'Estrange Burges | | 11/8/1949 | BIRM |
| Carex extensa | IE, VCH38 Co. Down, Killyleagh | Richard Charles L'Estrange Burges | | 11/8/1949 | BIRM |
| Limonium humile | IE, VCH38 Co. Down, Killyleagh | Richard Charles L'Estrange Burges | | 11/8/1949 | BIRM |
| Caltha palustris var. guerangerii | IE, VCH28 Co. Sligo, Lough Gill | Richard Charles L'Estrange Burges | | 18/6/1937 | BIRM |
| Ranunculus flammula subsp. scoticus | IE, VCH28 Co. Sligo, Lough Gill | Richard Charles L'Estrange Burges | | 18/6/1937 | BIRM |
| Carex diversicolor | IE, VCH28 Co. Sligo, Benbulben | Richard Charles L'Estrange Burges | | 17/6/1937 | BIRM |
| Carex hostiana x lepidocarpa = C. x fulva | IE, VCH28 Co. Sligo, Benbulben | Richard Charles L'Estrange Burges | | 17/6/1937 | BIRM |
| Salix phylicifolia | IE, VCH28 Co. Sligo, Benbulben | Richard Charles L'Estrange Burges | | 17/6/1937 | BIRM |
| Saxifraga hypnoides | IE, VCH28 Co. Sligo, Benbulben | Richard Charles L'Estrange Burges | | 17/6/1937 | BIRM |
| Erica erigena | IE, VCH27 West Mayo, Mallaranny | Richard Charles L'Estrange Burges | | 16/6/1937 | BIRM |
| Apium inundatum | IE, VCH24 Co. Longford, Lanesborough | Richard Charles L'Estrange Burges | | 18/6/1937 | BIRM |
| Ranunculus lingua | IE, VCH23 Westmeath, Mullingar | Richard Charles L'Estrange Burges | | 14/8/1949 | BIRM |
| Sisymbrium irio | IE, VCH21 Co. Dublin, Swords | Richard Charles L'Estrange Burges | | 19/6/1937 | BIRM |
| Sisymbrium irio | IE, VCH21 Co. Dublin, Swords | Richard Charles L'Estrange Burges | | 19/6/1937 | BIRM |
| Blysmus rufus | IE, VCH21 Co. Dublin, North Bull Island | Richard Charles L'Estrange Burges | | 19/7/1937 | BIRM |
| Carex distans | IE, VCH21 Co. Dublin, North Bull Island | Richard Charles L'Estrange Burges | | 19/6/1937 | BIRM |
| Carex distans | IE, VCH21 Co. Dublin, North Bull Island | Richard Charles L'Estrange Burges | | 19/6/1937 | BIRM |
| Carex extensa | IE, VCH21 Co. Dublin, North Bull Island | Richard Charles L'Estrange Burges | | 19/6/1937 | BIRM |
| Sedum acre | IE, VCH21 Co. Dublin, North Bull Island | Richard Charles L'Estrange Burges | | 19/6/1937 | BIRM |
| Eriophorum latifolium | IE, VCH21 Co. Dublin, Ballyman | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Schoenus nigricans | IE, VCH20 Co. Wicklow, Wicklow | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex elata | IE, VCH20 Co. Wicklow, The Murrough | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex viridula subsp. oedocarpa | IE, VCH20 Co. Wicklow, The Murrough | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Erodium cicutarium var. chaerophyllum | IE, VCH20 Co. Wicklow, Brittas Bay | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Oxalis articulata var. hirsuta | IE, VCH20 Co. Wicklow, Brittas Bay | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Viola tricolor subsp. tricolor | IE, VCH20 Co. Wicklow, Brittas Bay | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex disticha | IE, VCH20 Co. Wicklow, Ballymen Glen | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex hostiana x lepidocarpa = C. x fulva | IE, VCH20 Co. Wicklow, Ballymen Glen | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex lepidocarpa | IE, VCH20 Co. Wicklow, Ballymen Glen | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex panicea | IE, VCH20 Co. Wicklow, Ballymen Glen | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Asperula cynanchica | IE, VCH16 West Galway, Roundstone,Dog's Bay | Richard Charles L'Estrange Burges | | 16/8/1949 | BIRM |
| Daboecia cantabrica | IE, VCH16 West Galway, Roundstone | Richard Charles L'Estrange Burges | | 16/8/1949 | BIRM |
| Daboecia cantabrica | IE, VCH16 West Galway, Roundstone | Richard Charles L'Estrange Burges | | 15/6/1937 | BIRM |
| Eriocaulon septangulare | IE, VCH16 West Galway, Roundstone | Richard Charles L'Estrange Burges | | 15/6/1937 | BIRM |
| Eriocaulon septangulare | IE, VCH16 West Galway, Roundstone | Richard Charles L'Estrange Burges | | 16/8/1949 | BIRM |
| Euphrasia micrantha | IE, VCH16 West Galway, Roundstone | Richard Charles L'Estrange Burges | | 16/8/1949 | BIRM |
| Carex aquatilis | IE, VCH16 West Galway, Maum an Mam | Richard Charles L'Estrange Burges | | 14/6/1937 | BIRM |
| Carex aquatilis x goodenowii | IE, VCH16 West Galway, Maam River | Richard Charles L'Estrange Burges | | 14/6/1937 | BIRM |