Bark

Two Kauris (museum title)

Charles Blomfield (New Zealander), oil on canvas

Auckland Art Gallery, New Zealand

Cis (museum title)

Leon Wyczółkowski (Polish), lithograph

National Museum in Warsaw, Poland

Le Puma (museum title)

Eugène Delacroix (French), oil on wood panel

Musée d'Orsay, France

Les bords de la Seine près d'Argenteuil (museum title)

Gustave Caillebotte (French), oil on canvas

Tel Aviv Museum of Art, Israël

Landscape (Paysage) (museum title)

Pierre-Auguste Renoir (French), oil on canvas

Barnes Foundation, United States

Koivuja (museum title)

Eero Järnefelt (Finnish), oil on canvas

Finnish National Gallery, Finland

Vanhoja kyhmyisiä tammia (museum title)

Eero Järnefelt (Finnish), pencil on paper

Finnish National Gallery, Finland

Mishima Pass in Kai Province (museum title)

Katsushika Hokusai (Japanese), woodblock print; ink and color on paper

Metropolitan Museum of Art, United States

Dąb Jagielloński (poza teką "Wrażenia z Białowieży") (museum title)

Leon Wyczółkowski (Polish), lithograph

National Museum in Kraków, Poland

Militaires dans un bois, Yerres (museum title)

Gustave Caillebotte (French), oil on canvas

Private collection

Le Nid de chouettes (museum title)

Hieronymus Bosch (Dutch), ink

Museum Boijmans Van Beuningen, Netherlands

Vanha lehmus (museum title)

Albert Edelfelt (Finnish), pencil and colored pencil

Finnish National Gallery, Finland

Birch Tree in a Storm (museum title)

Johan Christian Dahl (Norwegian), oil on paper, laid down on cardboard

Metropolitan Museum of Art, United States

Dąb. Na temat Rogalina (museum title)

Leon Wyczółkowski (Polish), lithograph

National Museum in Warsaw, Poland

Dęby rogalińskie (museum title)

Leon Wyczółkowski (Polish), watercolor on paper

National Museum in Kraków, Poland

Corbeaux sur un arbre (museum title)

Caspar David Friedrich (German), oil on canvas

Department of Paintings, Louvre Museum, France

Trerot fra Lyder Sagens Hage i Bergen (museum title)

Johan Christian Dahl (Norwegian), pencil and wash on paper

National Museum of Norway

Study of the Trunk of an Elm Tree (museum title)

John Constable (British), oil on paper

Victoria and Albert Museum, United Kingdom

Frühjahr (museum title)

Akseli Gallen-Kallela (Finnish), oil on canvas

Belvedere Museum, Austria

Parti ved Lyngby Sø (museum title)

C.W. Eckersberg (Danish), oil on canvas

Statens Museum for Kunst, Denmark

Napsütés az erdőben (museum title)

László Paál (Hungarian), oil on canvas

Ottó Herman Museum, Hungary

New Zealand Landscape (museum title)

Charles Blomfield (New Zealander), oil on panel

Auckland Art Gallery, New Zealand

Chêne sous la neige (museum title)

Caspar David Friedrich (German), oil on canvas

Alte Nationalgalerie, Germany

Tjäderhöna (museum title)

Bruno Liljefors (Swedish), oil on canvas

Nationalmuseum, Sweden

Hus og trær, Nysø (museum title)

Johan Christian Dahl (Norwegian), pencil and wash on paper

National Museum of Norway

Murtunut honka, aiottu 4. luvun loppukuvaksi (museum title)

Akseli Gallen-Kallela (Finnish), ink

Finnish National Gallery, Finland

Study of a Palm Tree (recto); Mountain Landscape (verso) (museum title)

Nicolas Poussin (French), pen and brown ink over traces of black chalk (recto); pen and brown ink (verso)

Metropolitan Museum of Art, United States

Dąb Jagielloński (poza teką „Wrażenia z Białowieży”) (museum title)

Leon Wyczółkowski (Polish), lithograph

National Museum in Kraków, Poland

Tree Trunks with Ivy (museum title)

Vincent van Gogh (Dutch), oil on canvas

Kröller-Müller Museum, Netherlands

En trægruppe i Dyrehaven (museum title)

C.W. Eckersberg (Danish), oil on canvas

Ordrupgaard, Denmark

Four Large Trees (museum title)

Alexandre Calame (Swiss), oil on paper laid on cardboard

National Gallery, United Kingdom

Cis (z Borów Tucholskich) (museum title)

Leon Wyczółkowski (Polish), lithograph

National Museum in Warsaw, Poland

Fallen Tree (museum title)

Alexandre Calame (Swiss), oil on paper mounted on canvas

National Gallery of Art, United States

Chêne sous la neige (museum title)

Caspar David Friedrich (German), oil on canvas

Wallraf-Richartz Museum, Germany

Da vi hadde nærmet oss treet hvor den satt, hørte vi en… (museum title)

Hans Gude (Norwegian), pen, wash and pencil on paper

National Museum of Norway

Saule pleureur et bassin aux nymphéas (museum title)

Claude Monet (French), oil on canvas

Musée Marmottan Monet, France

Skogsinteriør med bjørkestamme (museum title)

Edvard Munch (Norwegian), oil on wood panel

Munch Museum, Norway

To løvtrær (museum title)

Johan Christian Dahl (Norwegian), pen and pencil on paper

National Museum of Norway

Furutre (museum title)

Erik Werenskiold (Norwegian), pen on paper

National Museum of Norway

Paysage avec chênes et un chasseur (museum title)

Caspar David Friedrich (German), oil on canvas

Oskar Reinhart Museum "Am Stadtgarten", Winterthur, Switzerland

Szurokfenyő (museum title)

Pál Szinyei Merse (Hungarian), oil on canvas

Hungarian National Gallery, Hungary

Hibou sur une arbre (museum title)

Caspar David Friedrich (German), oil on canvas

Collection particulière, France

Dąb. Na temat Rogalina (museum title)

Leon Wyczółkowski (Polish), lithograph

National Museum in Warsaw, Poland

Dęby rogalińskie (museum title)

Leon Wyczółkowski (Polish), ink on coated paper

National Museum in Warsaw, Poland

Flowering meadow with trees and dandelions (museum title)

Vincent van Gogh (Dutch), oil on canvas

Kröller-Müller Museum, Netherlands

Tjuvskytt (museum title)

Bruno Liljefors (Swedish), oil on canvas

Nationalmuseum, Sweden

Study of Tree Trunks (museum title)

John Constable (British), oil on paper

Victoria and Albert Museum, United Kingdom

Skogsduva (museum title)

Bruno Liljefors (Swedish), oil on cardboard

Thiel Gallery, Sweden

La Ferme des Collettes, Cagnes (museum title)

Pierre-Auguste Renoir (French), oil on canvas

Metropolitan Museum of Art, United States

Plante og landskabstudier (museum title)

Jens Juel (Danish), drawing

Statens Museum for Kunst, Denmark