 | Alnus glutinosa | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Allan Octavian Hume | 12/2/1900 | SLBI |
| Alnus glutinosa | GB, VC19 North Essex, Wickham Bishops | Harold Goodman Dixon
Hugh Neville Dixon | Hugh Neville Dixon
Leslie Beeching Hall | 18/8/1877 | SLBI |
| Alnus glutinosa var. incisa | GB, VC23 Oxfordshire, Cherwell | George Claridge Druce | Botanical Exchange Club of The British Isles
Augustin Ley
George Claridge Druce | 9/1909 | BIRM |
| Alnus serrulata | US, FL, Putnam County, Interlachen | Angus Gholson
R.W. Simons | Robert K Godfrey | 28/6/1984 | FSU |
| Alnus serrulata | US, FL, Bay County, Deer Point Lake | Robert K Godfrey | | 21/5/1976 | FSU |
| Alnus serrulata | US, FL, Jackson County, Lake Seminole | Robert K Godfrey | | 6/8/1972 | FSU |
| Alnus serrulata | US, FL, Okaloosa County | Robert K Godfrey | | 19/10/1971 | FSU |
| Alnus serrulata | US, FL, St. Johns County, Trout Creek | Robert K Godfrey | | 20/3/1976 | FSU |
| Alnus serrulata | US, FL, Jackson County, Sneads | Robert K Godfrey | | 13/10/1982 | FSU |
| Alnus serrulata | US, FL, Liberty County, Torreya State Park | Robert K Godfrey | | 15/11/1964 | FSU |
| Alnus serrulata | US, FL, Okaloosa County, Laurel Hill | Robert K Godfrey | | 26/6/1964 | FSU |
| Alnus serrulata | US, FL, Wakulla County, Sopchoppy River | Robert K Godfrey | Florida State University, Robert K. Godfrey Herbarium | 25/10/1956 | FSU |
| Alnus serrulata | US, FL, Walton County, De Funiak Springs | Robert K Godfrey | Florida State University, Robert K. Godfrey Herbarium | 3/9/1958 | FSU |
| Alnus serrulata | US, FL, Gadsden County, Tallahassee | Robert K Godfrey | | 15/1/1955 | FSU |
| Alnus serrulata | US, FL, Jackson County, Sneads | Robert K Godfrey | Florida State University, Robert K. Godfrey Herbarium | 8/2/1980 | FSU |
| Alnus serrulata | US, FL, Walton County, Shit Creek | Andre F Clewell
Robert K Godfrey | | 25/6/1964 | FSU |
| Alnus serrulata | US, FL, Liberty County, Apalachicola River | Robert K Godfrey | | 21/5/1976 | FSU |
| Alnus serrulata | US, FL, Franklin County, Apalachicola Bay | Robert K Godfrey | | 1/7/1976 | FSU |
| Alnus serrulata | US, FL, Gadsden County, Greensboro | Robert K Godfrey | | 25/7/1956 | FSU |
| Alnus serrulata | US, FL, Liberty County, Torreya State Park | Robert K Godfrey | | 4/4/1972 | FSU |
| Alnus serrulata | US, FL, Calhoun County, Bristol | Robert K Godfrey | | 14/3/1983 | FSU |
| Alnus serrulata | US, FL, Wakulla County, Sopchoppy | Robert K Godfrey | | 29/11/1958 | FSU |
| Alnus serrulata | US, FL, Holmes County, Choctawhatchee River | Robert K Godfrey | | 10/5/1974 | FSU |
| Alnus serrulata | US, FL, Jefferson County, Lloyd | Robert K Godfrey | | 24/1/1957 | FSU |
| Alnus glutinosa | GB, VC19 North Essex, Hatfield Forest | Douglas Montague Heath | Douglas Montague Heath | 4/1912 | BIRM |
| Alnus incana | GB, VC62 North-east Yorkshire, Thirsk | Douglas Montague Heath | Douglas Montague Heath | 13/7/1939 | BIRM |
| Alnus incana | GB, VC62 North-east Yorkshire, Thirsk | Douglas Montague Heath | | 13/7/1939 | BIRM |
| Alnus glutinosa | GB, VC20 Hertfordshire, Cassiobury Park | Isaac A Helsby | Isaac A Helsby | 3/1936
6/1936 | SLBI |
| Alnus glutinosa | GB, VC16 West Kent, Beckenham | Allan Octavian Hume | Allan Octavian Hume | 4/10/1898 | SLBI |
| Alnus glutinosa | GB, VC1 West Cornwall, Trewedna Valley | Allan Octavian Hume | Allan Octavian Hume | 23/8/1899 | SLBI |
| Alnus glutinosa | GB, VC16 West Kent, Orpington | William Henry Griffin | Allan Octavian Hume | 18/9/1902 | SLBI |
| Alnus glutinosa | GB, VC12 North Hampshire, Headbourne Worthy | | Croydon Natural History and Scientific Society
Robert Russell Hutchinson | 15/3/1834 | SLBI |
| Alnus serrulata | US, FL, Washington County | Lisa Keppner | | 19/9/2008 | FSU |
| Alnus serrulata | US, FL, Jackson County, Apalachee Game Management Area | Gary R Knight | | 9/9/1981 | FSU |
| Alnus serrulata | US, FL, Wakulla County, Panacea | Robert Kral | | 1/8/1956 | FSU |
| Alnus serrulata | US, FL, Jefferson County, Lloyd | Herman Kurz | | 15/10/1956 | FSU |
| Alnus cordata | GB, VC34 West Gloucestershire, Clifton Cultivated | Augustin Ley | Augustin Ley | 15/6/1892 | BIRM |
| Alnus glutinosa var. incisa | GB, VC22,VC23, Oxford | Edward Francis Linton | Augustin Ley
Edward Francis Linton | 11/6/1909 | BIRM |
| Alnus glutinosa var. incisa | GB, VC23 Oxfordshire, River Cherwell Cultivated | Edward Francis Linton | Watson Botanical Exchange Club
Augustin Ley
Edward Francis Linton | 11/6/1909 | BIRM |
| Alnus glutinosa var. incisa | GB, VC36 Herefordshire, Much Marcle | Augustin Ley | Augustin Ley | 8/11/1908 | BIRM |
