Alnus
Subdivisiones: Species
Inter 20 et 30 species
Territorium
Alnus (nomen botanicum ab Philippo Miller statutum) est genus arborum et fruticum familiae Betulacearum. Species variae alnorum a 23 ad 40 numerantur.
Descriptio
Unica species est arborum cum foliis deciduis (praeter laricem), cuius flores feminei (amenta vel et iuli dicti) lignificant et iure nucamenta dici possunt.
Taxinomia
Tria subgenera habet:
Subgenus Alnus
- Alnus acuminata Kunth
- Alnus cordata (Loisel.) Duby
- Alnus cremastogyne Burkill
- Alnus firma Siebold & Zucc.
- Alnus glutinosa (L.) Gaertn.
- Alnus incana (L.) Moench
- Alnus incana subsp. rugosa (Du Roi) Spreng.
- Alnus hirsuta (Spach) Rupr.
- Alnus oblongifolia Torr.
- Alnus tenuifolia Nutt.
- Alnus japonica (Thunb.) Steud.
- Alnus jorullensis Kunth
- Alnus matsumurae Callier
- Alnus nepalensis D.Don
- Alnus orientalis Decne.
- Alnus rhombifolia Nutt.
- Alnus rubra Bong.
- Alnus serrulata (Aiton) Willd.
- Alnus subcordata C.A.Mey.
- Alnus trabeculosa Hand.-Mazz.
Subgenus Clethropsis
- Alnus formosana (Burkill) Makino
- Alnus maritima (Marshall) Muhl. ex Nutt.
- Alnus nitida (Spach) Endl.
Subgenus Alnobetula
- Alnus alnobetula (Ehrh.) K.Koch
- Alnus firma Siebold & Zucc.
- Alnus mandshurica (Callier) Hand.-Mazz.
- Alnus maximowiczii Callier
- Alnus pendula Matsum.
- Alnus sieboldiana Matsum.
Aliae species
- Alnus djavanshirii H.Zare
- Alnus dolichocarpa H.Zare, Amini & Assadi
- Alnus fauriei H.Lév. & Vaniot
- Alnus ferdinandi-coburgii C.K.Schneid.
- Alnus hakkodensis Hayashi
- Alnus henryi C.K.Schneid.
- †Alnus heterodonta (Newberry) Meyer & Manchester 1987
- Alnus lanata Duthie ex Bean
- Alnus mairei H.Lév.
- Alnus paniculata Nakai
- Alnus serrulatoides Callier
- Alnus vermicularis Nakai
Nexus externi
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