Alnus glutinosa (Linnaeus 1753) Gaertner 1791 (Family Betulaceae)


Tree

Bark

Leaf

Male Flowers

Female Flowers

Fruit

Height: <20 m, Age: <100 yr
Occasionally Arbuscular Mycorrhizal
Monoecious, Flowering March - April (Earliest: 14.2)

Protective Chemicals
Triterpenoids Anulin
Flavonoids Quercetin
Other Phenolics Caftaric, Chicoric, Ferulic,
Gentisic, & Sinapic Acids, Tannins
Other Acids Abscisic, Carboxylic, Quinic
Polyhydroxysteroids Brassinolide, Castasterone

Biotopes:
Wet Forest
Pollination: Wind
Seed Dispersal: Wind
Mycorrhizae:
Paxillus rubicundulus

Several Russulaceae

Several Entolomataceae

Several Hymenogastraceae

Several Inocybaceae

Cortinarius pluvius

Cortinarius violaceus
Parasites:
Gnomoniella tubaeformis

Capnodium citri

Taphrina tosquinetii

Inonotus cuticularis

Phellinus igniarius

Fomitopsis pinicola

Bjerkandera fumosa

Aurantiporus fissilis

Cerrena unicolor

Phyllonorycter klemannella
(Leaf Miner)

Phyllonorycter stettinensis
(Leaf Miner)

Incurvaria pectinea

Epinotia tetraquetrana Larva
(Stem Borer)

Coleophora serratella

Bucculatrix thoracella

Orchestes jota Larva
(Leaf Miner)

Orchestes testaceus Larva
(Leaf Miner)

Fenusa dohrnii Larva

Aceria nalepai (Leaf Gall)

Eriophyes laevis (Leaf Gall)
Herbivores:
Capreolus capreolus

Apatura ilia Larva

Apatura iris Larva

Several Drepanidae

Many Geometridae

Several Noctuidae

Several Notodontidae

Saturniidae

Many Tortricidae

Lymantria monacha Larva

Endromis versicolora Larva

Carpatolechia proximella Larva

Cossus cossus

Poecilocampa populi

Ypsolopha parenthesella Larva

Several Tenthredinidae

Trichiosoma lucorum

Several Chrysomelidae

Many Curculionidae

Byctiscus betulae

Deporaus betulae
Sapivores:
Several Cicadellidae

Several Miridae

Palomena prasina

Pentatoma rufipes

Aphrophora alni

Cixius simplex
Xylophages:
Castor fiber

Synanthedon spheciformis Larva (Wood Borer)

Pachytodes cerambyciformis Larva (Root Borer)

Otiorhynchus coecus Larva
Florivores:
Eupithecia subfuscata

Argyresthia brockeella

Argyresthia goedartella Larva

Neolygus contaminatus
Granivores:
Carduelis carduelis

Carduelis spinus

Several Miridae

Kleidocerys resedae

Stathmopoda pedella Larva
Lichens and Fungi:
Hypogymnia physodes

Parmelia sulcata

Lecanora carpinea

Pertusaria amara

Cladonia coniocraea

Dacrymyces enatus
Mosses:
Hypnum cupressiforme
Wood Decomposers:
Pholiota alnicola

Pholiota gummosa

Flammulina velutipes

Pluteus podospileus

Mycenella margaritispora

Panellus stipticus

Schizophyllum commune

Pleurotus pulmonarius

Plicaturopsis crispa

Radulomyces confluens

Stereum subtomentosum

Several Hymenochaetaceae

Several Meruliaceae

Several Polyporaceae

Hypoxylon fuscum

Diatrypella favacea

Mollisia ramealis

Angiosperm Generalists
Leaf Decomposers:
Leucocybe candicans

Fayodia bisphaerigera

Gnomoniella tubaeformis

Adela reaumurella Larva

Nemophora degeerella Larva

Angiosperm Generalists

Ecological Flora of the British Isles
Skye Flora: Alder


Pictures © 2003, 2004, 2005, 2006 J.K. Lindsey

Caution

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