| Carex hostiana x lepidocarpa = C. x fulva | GB, VC28 West Norfolk, Lynn | Richard Charles L'Estrange Burges | | 8/7/1945 | BIRM |
| Carex hostiana x lepidocarpa = C. x fulva | IE, VCH20 Co. Wicklow, Ballymen Glen | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex hostiana x lepidocarpa = C. x fulva | IE, VCH28 Co. Sligo, Benbulben | Richard Charles L'Estrange Burges | | 17/6/1937 | BIRM |
| Carex humilis | GB, VC8 South Wiltshire, Lark Hill | Richard Charles L'Estrange Burges | | 4/1940 | BIRM |
| Carex humilis | GB, VC11 South Hampshire, Breamore | Richard Charles L'Estrange Burges | | 18/4/1937 | BIRM |
| Carex incurva | GB, VC90 Angus, Arbroath | Richard Charles L'Estrange Burges | | 25/6/1938 | BIRM |
| Carex incurva | GB, VC90 Angus, Usan | Richard Charles L'Estrange Burges | | 25/7/1938 | BIRM |
| Carex incurva | GB, VC108 West Sutherland, Bettyhill | Richard Charles L'Estrange Burges | | 2/7/1946 | BIRM |
| Carex laevigata | GB, VC1 West Cornwall, Lambourne | Richard Charles L'Estrange Burges | | 17/6/1947 | BIRM |
| Carex laevigata | GB, VC8 South Wiltshire, Redlynch | Richard Charles L'Estrange Burges | | 2/7/1949 | BIRM |
| Carex laevigata | GB, VC11 South Hampshire, Hinton | Richard Charles L'Estrange Burges | | 5/9/1938 | BIRM |
| Carex laevigata subsp. gracilis | GB, VC33 East Gloucestershire, Gloucester | Richard Charles L'Estrange Burges | | 17/6/1944 | BIRM |
| Carex laevigata subsp. gracilis | GB, VC37 Worcestershire, Holtfleet | Richard Charles L'Estrange Burges | | 11/6/1944 | BIRM |
| Carex lasiocarpa | GB, VC88 Mid Perthshire, Rannoch Station | Richard Charles L'Estrange Burges | | 12/7/1939 | BIRM |
| Carex lasiocarpa | GB, VC98 Argyllshire, Bridge of Orchy | Richard Charles L'Estrange Burges | | 21/6/1952 | BIRM |
| Carex lasiocarpa | GB, VC108 West Sutherland, Lochinver | Richard Charles L'Estrange Burges | | 2/8/1950 | BIRM |
| Carex lasiocarpa | IE, VCH16 West Galway, Maam | Richard Charles L'Estrange Burges | | 14/6/1937 | BIRM |
| Carex lasiocarpa | IE, VCH16 West Galway, Maam Bridge | Richard Charles L'Estrange Burges | | 14/6/1937 | BIRM |
| Carex lepidocarpa | GB, VC28 West Norfolk, Lynn | Richard Charles L'Estrange Burges | | 8/7/1945 | BIRM |
| Carex lepidocarpa | GB, VC62 North-east Yorkshire, Thirsk | Richard Charles L'Estrange Burges | | 24/6/1938 | BIRM |
| Carex lepidocarpa | GB, VC64 Mid-west Yorkshire, Malham | Richard Charles L'Estrange Burges | | 20/7/1947 | BIRM |
| Carex lepidocarpa | GB, VC66 County Durham, Wynch Bridge | Richard Charles L'Estrange Burges | | 23/6/1934 | BIRM |
| Carex lepidocarpa | GB, VC69 Westmorland, Roudsea Wood | Richard Charles L'Estrange Burges | | 28/6/1950 | BIRM |
| Carex lepidocarpa | GB, VC69 Westmorland, Roudsea Wood | Richard Charles L'Estrange Burges | | 28/6/1950 | BIRM |
| Carex lepidocarpa | GB, VC88 Mid Perthshire, Ben Lawers | Richard Charles L'Estrange Burges | | 11/7/1939 | BIRM |
| Carex lepidocarpa | GB, VC90 Angus, Caenlochan | Richard Charles L'Estrange Burges | | 25/6/1936 | BIRM |
| Carex lepidocarpa | GB, VC92 South Aberdeenshire, Ballater | Richard Charles L'Estrange Burges | | 24/8/1945 | BIRM |
| Carex lepidocarpa | GB, VC98 Argyllshire, Bridge of Orchy | Richard Charles L'Estrange Burges | | 27/7/1950 | BIRM |
| Carex lepidocarpa | GB, VC104 North Ebudes, The Storr | Richard Charles L'Estrange Burges | | 22/8/1953 | BIRM |
| Carex lepidocarpa | IE, VCH20 Co. Wicklow, Ballymen Glen | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex limosa | GB, VC11 South Hampshire, Holmsley | Richard Charles L'Estrange Burges | | 6/1940 | BIRM |
| Carex limosa | GB, VC87 West Perthshire, Cleish Hills | Richard Charles L'Estrange Burges | | 29/7/1938 | BIRM |
| Carex limosa | GB, VC88 Mid Perthshire, Loch Garry | Richard Charles L'Estrange Burges | | 20/6/1936 | BIRM |
| Carex limosa | GB, VC88 Mid Perthshire, Rannoch Moor | Richard Charles L'Estrange Burges | | 12/7/1939 | BIRM |
| Carex limosa | GB, VC104 North Ebudes, Sligachan | | Richard Charles L'Estrange Burges | 18/7/1938 | BIRM |
| Carex limosa | GB, VC108 West Sutherland, Altnaharra | Richard Charles L'Estrange Burges | | 30/6/1946 | BIRM |
| Carex magellanica | | Richard Charles L'Estrange Burges | | 1947 | BIRM |
| Carex magellanica | GB, VC69 Westmorland, Black Essett Plantation | Richard Charles L'Estrange Burges | | 1947 | BIRM |
| Carex magellanica subsp. irrigua | GB, VC69 Westmorland, Killington | Richard Charles L'Estrange Burges | | 19/7/1947 | BIRM |
| Carex maritima | GB, VC90 Angus, Lunan Bay | Richard Charles L'Estrange Burges | | 28/6/1951 | BIRM |