Norway

Agaricus fuscofibrillosus

Agaricus lutosus

Agaricus macrocarpus

Agaricus phaeolepidotus

Agaricus pilatianus

Agaricus semotus

Agaricus subperonatus

Agaricus urinascens

Agassiz's bloom moss

Schistidium agassizii

Agate Knot-horn

Nyctegretis lineana

agate snail

Cecilioides acicula

Ageratum

Ageratum houstonianum

Agonimia globulifera

Agonimia tristicula

Agrimony Rust

Pucciniastrum agrimoniae

Agrocybe cylindrica

Agrocybe dura

Agrocybe elatella

Agrocybe firma

Agrocybe ochracea

Agrocybe pusiola

Agrocybe vervacti

Agulhas Lark

Certhilauda brevirostris

Ailanthus

Ailanthus altissima

Akashiwo sanguinea

Akekee

Loxops caeruleirostris

Akiapolaau

Hemignathus wilsoni

Akikiki

Oreomystis bairdi

Akohekohe

Palmeria dolei

Akun Eagle-Owl

Bubo leucostictus

Alagoas Curassow

Mitu mitu

Alaotra Grebe

Tachybaptus rufolavatus

Ala Shan Redstart

Phoenicurus alaschanicus

Alaska Bunchberry

Cornus unalaschkensis

Alaska Cedar

Xanthocyparis nootkatensis

Alaska Clubmoss

Diphasiastrum sitchense

Alaska Larch

Larix laricina

Alaska Large Awn Sedge

Carex macrochaeta

Alaskan king crab

Paralithodes camtschaticus

Alaska spring beauty

Claytonia sarmentosa

Alaska wheatgrass

Elymus alaskanus

Albanian spurge

Euphorbia characias

Albatrellus subrubescens

Alberta Spruce

Picea glauca

Albertine Owlet

Glaucidium albertinum

Albotricha acutipila

Aldabra Brush-Warbler

Nesillas aldabrana

Aldabra Drongo

Dicrurus aldabranus

Alder Kitten

Furcula bicuspis

Alder Leaf Gall Mite

Eriophyes laevis

Alder Milkcap

Lactarius obscuratus

Alder Rollrim

Paxillus rubicundulus

Alder Scalycap

Flammula alnicola

alder silk moss

Plagiothecium latebricola

Alder's necklace shell

Euspira nitida

Alder Tongue

Taphrina alni

Alder wooly sawfly

Eriocampa ovata

Alder Wrinkle

Taphrina tosquinetii

Alecost

Tanacetum balsamita

Aleppo Avens

Geum aleppicum