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Prunus persica: Worthen

Prunus persica: Worthen (1913)

Amanda Almira Newton (American, 1860-1943)
Prunus persica: Yellow Rare Ripe

Prunus persica: Yellow Rare Ripe (1910)

Amanda Almira Newton (American, 1860-1943)
Prunus persica: Yellow Swan

Prunus persica: Yellow Swan (1910)

Ellen Isham Schutt (American, 1873 – 1955)
Prunus persica: Yum Yum

Prunus persica: Yum Yum (1903)

Deborah Griscom Passmore (American, 1840–1911)
Prunus persica: Zea

Prunus persica: Zea (1903)

Bertha Heiges (American, 1866-1956)
Prunus simonii

Prunus simonii (1895)

Deborah Griscom Passmore (American, 1840–1911)
Psammophis flagelliformis.

Psammophis flagelliformis. (1842)

John Edwards Holbrook (American, 1796 – 1871)
Pseudocymopterus montanus

Pseudocymopterus montanus (1938)

Mary Vaux Walcott (American, 1860-1940)
Pseudostoma Borealis, The Camas Rat. Male, female & young. Natural size.

Pseudostoma Borealis, The Camas Rat. Male, female & young. Natural size. (1845-1848)

John Woodhouse Audubon (American, 1812-1862)
Pseudostoma bursarius, Canada Pouched Rat. Natural size.

Pseudostoma bursarius, Canada Pouched Rat. Natural size. (1845-1848)

John Woodhouse Audubon (American, 1812-1862)
Pseudostoma talpoides, Mole-shaped Pouched Rat. Natural size.

Pseudostoma talpoides, Mole-shaped Pouched Rat. Natural size. (1845-1848)

John Woodhouse Audubon (American, 1812-1862)
Psidium guajava: Guava

Psidium guajava: Guava (1914)

Amanda Almira Newton (American, 1860-1943)
Psidium guajava: Red Fleshed

Psidium guajava: Red Fleshed (1906)

Amanda Almira Newton (American, 1860-1943)
Psilostrophe sparsiflora

Psilostrophe sparsiflora (1938)

Mary Vaux Walcott (American, 1860-1940)
PSO J318

PSO J318 (2017)

NASA (American, 1958 -)
Psyche seeks love

Psyche seeks love

Robert Van Vorst Sewell (American, 1860-1924)
Ptarmiganberry (Arctous alpina)

Ptarmiganberry (Arctous alpina) (1922)

Mary Vaux Walcott (American, 1860-1940)
Ptarmiganberry. Arctous alpina

Ptarmiganberry. Arctous alpina (1925)

Mary Vaux Walcott (American, 1860-1940)
Pteromys Origonensis, Oregon Flying Squirrel. Natural size.

Pteromys Origonensis, Oregon Flying Squirrel. Natural size. (1845-1848)

John Woodhouse Audubon (American, 1812-1862)
Pteromys volucella, Common Flying Squirrel. Natural size. 1. 2. Males, 3. 4. Females, 5. Young.

Pteromys volucella, Common Flying Squirrel. Natural size. 1. 2. Males, 3. 4. Females, 5. Young. (1845-1848)

John Woodhouse Audubon (American, 1812-1862)
Ptilonorhynchus Rawnsleyi

Ptilonorhynchus Rawnsleyi (1873)

Daniel Giraud Elliot (American, 1835 – 1915)
Ptilorhynchus violaceus

Ptilorhynchus violaceus (1873)

Daniel Giraud Elliot (American, 1835 – 1915)
Ptiloris Victorie

Ptiloris Victorie (1873)

Daniel Giraud Elliot (American, 1835 – 1915)
Ptiloris Alberti

Ptiloris Alberti (1873)

Daniel Giraud Elliot (American, 1835 – 1915)
Ptiloris magnificus

Ptiloris magnificus (1873)

Daniel Giraud Elliot (American, 1835 – 1915)
Public bath at Simoda

Public bath at Simoda (1856)

James Fuller Queen (American, 1820-1886)
Public Building

Public Building (1935–43)

Fred Becker (American, 1913-2004)
Public Service

Public Service (1912)

William Henry Walker (American, 1871-1938)
Puccoon (Lithospermum ruderale)

Puccoon (Lithospermum ruderale) (1923)

Mary Vaux Walcott (American, 1860-1940)
Puck

Puck (1909)

Louis Glackens (American, 1866-1933)