Alnus glutinosa var. serrulata
| Alnus glutinosa (Linnaeus) Gaertner, var. serrulata (Aiton) Regel, Nouv. Mém. Soc. Imp. Naturalistes Moscou 13(2): 164. 1861. | BASIONYM: Betula serrulata Aiton 1789. | |
Alnus incana var. serrulata
| Alnus incana (Linnaeus) Moench, var. serrulata (Aiton) B. Boivin, Naturaliste Canad. 94: 651. 1967. | BASIONYM: Betula serrulata Aiton 1789. | |
Alnus rugosa var. serrulata
| Alnus rugosa (Duroi) Sprengel, var. serrulata (Aiton) H. J. Winkler, in Engler, Pflanzenr. 4(Heft 19): 120. 1904. | BASIONYM: Betula serrulata Aiton 1789. | |
Alnus serrulata var. genuina
| Alnus serrulata (Aiton) Willdenow, var. genuina Regel, Bull. Soc. Imp. Naturalistes Moscou 38(2): 432. 1865, nom. inadmiss. | BASIONYM: Alnus serrulata (Aiton) Willdenow 1805; Betula serrulata Aiton 1789. | |
Alnus serrulata var. vulgaris
| Alnus serrulata (Aiton) Willdenow, var. vulgaris Spach, Ann. Sci. Nat., Bot., ser. 2.15: 206. 1841, nom. inadmiss. | BASIONYM: Alnus serrulata (Aiton) Willdenow 1805; Betula serrulata Aiton 1789. | |
Betula serrulata
| Betula serrulata Aiton, Hort. Kew. 3: 338. 1789. | | TYPE: PENNSYLVANIA: "nat. of Pennsylvania. Cult. 1769 by Peter Collinson Esq." (holotype: BM). |
Alnus autumnalis
| Alnus autumnalis Hartig ex Garcke, FL. N. Mitt.-Deutschland, ed. 4. 305. 1858. | | |
Alnus glutinosa [unranked] obtusifolia
| Alnus glutinosa (Linnaeus) Gaertner, [unranked] obtusifolia Regel, Nouv. Mém.
Soc. Imp. Naturalistes Moscou 13(2): 165, t. 11(7). 1861. | | |
Alnus glutinosa var. autumnalis
| Alnus glutinosa (Linnaeus) Gaertner, var. autumnalis (Hartig ex Garcke) Kuntze, Revis. Gen. Pl. 2: 638. 1891. | BASIONYM: Alnus autumnalis Hartig ex Garcke 1858. | |
Alnus incana var. autumnalis
| Alnus autumnalis (Hartig ex Garcke) Garcke, FL. N. Mitt.-Deutschland, ed. 11. 356. 1873. | BASIONYM: Alnus autumnalis Hartig ex Garcke 1858. | |
Alnus noveboracensis
| Alnus noveboracensis Britton, Torreya 4: 124. 1904. | | TYPE: NEW YORK: Grant City, Staten Island, s.d., Britton s.n. (holotype: NY). |
Alnus oblongata
| Alnus oblongata (Aiton) Willdenow, Sp. Pl. 4: 335. 1805. | BASIONYM: Betula oblongata Aiton 1789. | |
Alnus rugosa var. obtusifolia
| Alnus rugosa (Du Roi) Sprengel, var. obtusifolia (Regel) H. Winkler, in Engler, Pflanzenr. 4(Heft 61): 120. 1904. | BASIONYM: Alnus glutinosa (Linnaeus) Gaertner, [unranked] obtusifolia Regel 1861. | |
Alnus serrulata forma emarginata
| Alnus serrulata (Aiton) Willdenow, forma emarginata Fernald, Rhodora 47: 359. 1945. | | TYPE: CONNECTICUT: Hartford Co.: Rainbow, Windsor, 16 Sep 1906 & 6 Apr 1907, Bissell & Weatherby (Weatherby 2031) (holotype: GH). |
Alnus serrulata forma mollescens
| Alnus serrulata (Aiton) Willdenow, forma mollescens Fernald, Rhodora 47: 359. 1945. | | TYPE: NEW YORK: Suffolk Co.: Southampton, 25 Jul-3 Aug 1920, St. John 2681 (holotype: GH). |
Alnus serrulata forma nanella
| Alnus serrulata (Aiton) Willdenow, forma nanella Fernald, Rhodora 47: 360. 1945. | | TYPE: VIRGINIA: Brunswick Co.: Ram Hole Swamp, Seward Forest, near Triplett, 22 Jun & 13 Sep 1944, Fernald & Lewis 14596 (holotype: GH; isotype: PH, US). |
Alnus serrulata forma noveboracensis
| Alnus serrulata (Aiton) Willdenow, forma noveboracensis (Britton) Fernald, Rhodora 47: 358. 1945. | BASIONYM: Alnus noveboracensis Britton 1904. | |
Alnus serrulata var. macrophylla
| Alnus serrulata (Aiton) Willdenow, var. macrophylla Spach, Ann. Sci. Nat., Bot., ser. 2. 15: 206. 1841. | | |
Alnus serrulata var. obtusifolia
| Alnus serrulata (Aiton) Willdenow, var. obtusifolia (Regel) Regel, Bull. Soc. Imp. Naturalistes Moscou 38(2): 433. 1865. | BASIONYM: Alnus glutinosa (Linnaeus) Gaertner, [unranked] obtusifolia Regel 1861. | |
Alnus serrulata var. subelliptica
| Alnus serrulata (Aiton) Willdenow, var. subelliptica Fernald, Rhodora 47: 358. 1945. | | TYPE: MASSACHUSETTS: Middlesex Co.: Tewksbury, 14 Apr, 14 Oct 1906, Fernald & Bartlett 16 (holotype: GH; isotypes: CAN, F, NY, US, WIS). |
Betula oblongata
| Betula oblongata Aiton, Hort. Kew. 3: 338. 1789. | | |