Aceraceae Neck. Acer Ginnala Max. Plant specimen from the maple family collected by N.E. Hansen, 1924. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants. Specimen is mounted on an 11.5 x 16.5 inch herbarium sheet accompanied by a label printed in Russian in Cyrillic letter with hand-written notation in black ink.

Aceraceae Neck. Acer Mons Max. Plant specimen from the maple family collected by N.E. Hansen, 1924. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants. Specimen is mounted on an 11.5 x 16.5 inch herbarium sheet accompanied by a label printed in Russian in Cyrillic letter with hand-written notation in black ink.

Caprifoliaceae Vent. Lonicera edulis Turcr. Plant specimen from the honeysuckle family collected by N.E. Hansen, 1924. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants. Specimen is mounted on an 11.5 x 16.5 inch herbarium sheet accompanied by a label printed in Russian in Cyrillic letter with hand-written notation in black ink.

Caprifoliaceae Vent. Lonicera Maacki Turcr. Plant specimen from the honeysuckle family collected by N.E. Hansen, 1924. This plant is native to temperate western Asia, specifically in northern and western China south to Yunnan, Mongolia, Primorsky Krai in southeastern Russia, Korea, and, albeit rare there, central and northern Honshu, Japan. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants.

Primulaceae Vent. Primula. Plant specimen collected by N.E. Hansen, 1924. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants.

Rosaceae B. Juss. Prunus padus L. Plant specimen collected by N.E. Hansen, 1924, also known as bird cherry, hackberry, hagberry, or Mayday tree, is a species of cherry, native to norther Europe and northern Asia. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants. Specimen is mounted on an 11.5 x 16.5 inch herbarium sheet accompanied by a label with hand-written notation in pencil ink.

Man walking on the Trans-Siberian Railway platform by the train in Harbin, China; written in pencil on the back: China

Ornamental plantings in a park in Harbin, China; written in pencil on the back: Park at Harbin 1924

Ornamental plantings and statuary in a park in Harbin, China; written in pencil on the back: Park at Harbin 1924

Man standing by some ornamental plantings in a park in Harbin, China; written in pencil on the back: Park at Harbin 1924

Men selling pears by the Trans-Siberian Railway east of Harbin, China while other walk by; written in pencil on the back: Chinese selling pears on East Siberian Railway east of Harbin, 1924

N.E. Hansen with two others standing in a Kaoliang sorghum field at Echo in Manchuria, China; written in pencil on the back: Kaoliang at Echo, Manchuria 1924

N.E. Hansen and another man are standing in a Kaoliang sorghum field at Echo in Manchuria, China; written in pencil on the back: Kaoliang at Echo, Manchuria 1924

Men selling fruit on the Trans-Siberian Railway in Manchuria, China; written in pencil on the back: Chinese selling fruit on Siberian Railway Manchuria 1924

N.E. Hansen at a bazaar in Fushun, Manchuria in northern China, there are men sitting by a building in the background; written in pencil on the back: Futachien 1924

People looking at fruits and vegetables for sale at a bazaar in Fushun, Manchuria in northern China; written in pencil on the back: Fruit and vegetable bazaar at Futachien 1924

Man pulling a rickshaw down a street in Fushun, Manchuria in northern China; written in pencil on the back: Futachien 1924

Storefronts in Manzhouli, Manchuria in northern China; written in pencil on the back: Manchouli North China 1924

Four of N.E. Hansen's assistants stand by a horse-drawn wagon by a building at Mendoche before they begin a search for hardy peach trees in northern China; written in pencil on the back: Mendoche 1924 North China

N.E. Hansen and his three assistants gathering specimens in a field with a horse-drawn wagon at Mendoche before they begin a search for hardy peach trees in northern China, there is a dog in the grass; written in pencil on the back: Mendoche 1924 North China

Terrain in Mendoche, northern China that N.E. Hansen traveled in is search for hardy peach trees in 1924; written in pencil on the back: Mendoche, North China 1924

N.E. Hansen and two assistants climb rough terrain to gather specimens in their search for hardy peach trees in Mendoche in northern China in 1924, Hansen is holding a peach tree specimen, one man is holding a gun; written in pencil on the back: Mendoche, North China 1924

N.E. Hansen and two assistants gather specimens in their search for hardy peach trees in Mendoche in northern China in 1924, Hansen is holding a peach tree specimen, one man is holding a gun, burlap bags are holding specimens, there is a dog in the foreground; written in pencil on the back: Mendoche, North China 1924

N.E. Hansen and two assistants climb rough terrain to gather specimens in their search for hardy peach trees in Mendoche in northern China in 1924; written in pencil on the back: Mendoche, North China 1924

N.E. Hansen and two assistants climb rough terrain to gather specimens in their search for hardy peach trees in Mendoche in northern China in 1924; written in pencil on the back: Mendoche, North China 1924

Trans-Siberian Railway tracks through the mountains enroute to Saolin in northern China; written in pencil on the back: Railway Saolin 1924

Transmission lines above buildings on a busy community street on the Trans-Siberian Railway enroute to Saolin in northern China; written in pencil on the back: On Siberian Railway enroute to Saolin 1924 North China

Assistants to N.E. Hansen gather specimens of pears in Saolin in northern China; written in pencil on the back: Saolin 1924 North China pear research

Man feeding chickens in Saolin in northern China where N.E. Hansen was conducting research on pears; written in pencil on the back: Saolin, Manchuria 1924 North China pear research

Fruit peddlers at Anda in northern China, soybeans are temporarily stored in covered bins awaiting shipment in the background; written in pencil on the back: Soybeans stored ready for shipment at Anda, North China 1924

N.E. Hansen is standing behind a man with a carrying pole on his shoulders and two baskets full of pears at Hansen's headquarters while conducting pear research at Saolin in northern China, there are two men accompanying them, another man stands off to the left; written in pencil on the back: North China 1924

Man with a carrying pole on his shoulders and a basket full of pears at N.E. Hansen's headquarters while conducting pear research at Saolin in northern China; written in pencil on the back: North China 1924

Man standing on a stone walkway by a small fence by a plot of plant near the Trans-Siberian Railway in northern China; written in pencil on the back: On Siberian Railway 1924

People walking on a street toward a temple in Seoul, Korea in 1924; written in pencil on the back: Seoul, Korea 1924

Point on the Inland Sea in Japan; written in pencil on the back Point on Inland Sea, Japan 1924

Village nestled in the mountains by the Inland Sea in Japan; written in pencil on the back: Along Inland Sea, Japan 1924

Ships at port in Tokyo Bay at Yokahama, Japan; written in pencil on the back: Yokohama 1924

Steamer ship by the dock at the port in Tokyo Bay at Yokahama, Japan, people are riding bicycles on the dock, the ship is possibly a steamer ship called the Admiral from a line of ships owned and operated by the United States government; written in pencil on the back: Yokohama 1924

Steamer ship by the dock at the port in Tokyo Bay at Yokahama, Japan, the ship is possibly a steamer ship called the Admiral from a line of ships owned and operated by the United States government; written in pencil on the back: Yokohama 1924

Steamer ship by the dock at the port in Tokyo Bay at Yokahama, Japan, a porter is walking on the dock by the ship, the ship is possibly a steamer ship called the Admiral from a line of ships owned and operated by the United States government; written in pencil on the back: Yokohama 1924

Passengers waiting to board a steamer ship by the dock at the port in Tokyo Bay at Yokahama, Japan, the ship is possibly a steamer ship called the Admiral from a line of ships owned and operated by the United States government; written in pencil on the back: Yokohama 1924

Apple photographed with a ruler for scale for N.E. Hansen's research

Two Karakul fat tailed sheep were white long haired woolen sheep found in Turkistan that N.E. Hansen urged should be imported to the United States for dry hot regions like Arizona and New Mexico

N.E. Hansen meeting Ivan V. Michurin, a Russian horticulturalist, at his orchard in Russia

N.E. Hansen looking at a sapling tree at in orchard in Chelyabinsk, Russia with two other men; written in pencil on the back: Tscheljabinsk 1934

N.E. Hansen (back row hear center with lighter color jacket, white beard) and Ivan V. Michurin (seated in front of Hansen) pose for a photograph with a large group of people at Michurin's orchard in Chelyabinsk, Russia

N.E. Hansen (wearing hat) is with friends in Brookings, South Dakota; writing on the back: S.D. plant wizard and friends Brookings 5-19-39 compliments York Sampson

N.E. Hansen wearing a Siberian costume and holding a sheaf of wild Siberian flowered alfalfa

Portrait of Professor N.E. Hansen

Professor N.E. Hansen stand in ornamental grass at the horticulture grounds of South Dakota State College, the classroom building (right) and the Horticulture building (behind Hansen) are visible in the background

People seated in folding chairs and the grass in front of Lincoln Memorial Library on the campus of South Dakota State College to hear Carl Hansen speak during the recognition service for Dr. N.E. Hansen for his work in horticulture

N.E. Hansen standing by a small table in a room with horticultural displays of flowers and fruits

Dr. N.E. Hansen and an another man are in a greenhouse full of flowers on the campus of South Dakota State College

Rosaceae B. Juss. Spirea Chamaedrifolia L. Common name germander meadowsweet or elm-leaved spirea. Plant specimen collected by N.E. Hansen, 1924. Spiraea chamaedryfolia is a shrub reaching a height of 1–1.5 meters (3 feet 3 inches–4 feet 11 inches). Branchlets are brownish or red-brown. Leaves are simple, oblong or lance-shaped, toothed on the edges, 40–60 millimeters (1.6-2.4 inches) long and 10-30 millimeters (0.39-1.18 inches) wide, with a petiole of 4-7 millimeters. The white flowers of 6-9 millimeters in diameter grow in spike-like clusters at the ends of the branches. Flowering period extends from May to September. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants. Specimen is mounted on an 11.5 x 16.5 inch herbarium sheet accompanied by a label printed in Russian in Cyrillic letter with hand-written notation in black ink.

Saxifragaceae Dumort. Deutzia parviflora Bunge. Plant specimen collected by N.E. Hansen, 1924. Saxifragaceae are found mostly in the Northern Hemisphere, with centers of diversity in the Himalayas, East Asia, and Western North America. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants. Specimen is mounted on an 11.5 x 16.5 inch herbarium sheet accompanied by a label printed in Russian in Cyrillic letter with hand-written notation in blank ink.

People on the Trans-Siberian Railway platform by the train in Harbin, China; written in pencil on the back: Hailar 1924

Monument in General Ma Zhanshan Gardens in Harbin, China; written in pencil on the back: Monument General Ma's Garden on the outskirts of Harbin, China, 1924

Ornamental plantings surrounded by a fence in a park in Harbin, China; written in pencil on the back: Park at Harbin 1924

Man smiles for the camera while N.E. Hansen is looking the fruit he has for sale at a bazaar in Harbin, China; written in pencil on the back: Harbin 1924

Men selling wild grapes by the Trans-Siberian Railway east of Harbin, China; written in pencil on the back: Selling wild grapes on railway east of Harbin, 1924

N.E. Hansen with two others standing in a Kaoliang sorghum field at Echo in Manchuria, China; written in pencil on the back: Kaoliang at Echo, Manchuria 1924

Many people in a bazaar in Fushun, Manchuria in northern China, there is fruit in the foreground; written in pencil on the back: Futachien 1924

Signs hanging over stores in Manzhouli, Manchuria in northern China as viewed from behind a horse; written in pencil on the back: Signs over North Chinese store - Manchouli 1924

Men working on a Trans-Siberian Railway train car enroute to Manzhouli, Manchuria in northern China; written in pencil on the back: Siberian Railway enroute to Manchouli 1924

Signs hanging over stores in Manzhouli, Manchuria in northern China; written in pencil on the back: Manchouli North China 1924

N.E. Hansen and two assistants are gathering specimens in their search for hardy peach trees in Mendoche in northern China in 1924; written in pencil on the back: Mendoche, North China 1924

N.E. Hansen's assistants gather specimens in their search for hardy peach trees in Mendoche in northern China in 1924, one man is holding a gun; written in pencil on the back: Mendoche, North China 1924

N.E. Hansen and native Manchu mountain farmer in Myfun in northern China in 1924, note the noodles and squash drying in the background; written in pencil on the back: Myfun, North China N.E. Hansen and native Manchu mountain farmer note macaroni hung up in rear and dried squash

Pear tree in the mountains was photographed as an example during N.E. Hansen's research on pears at Saolin in northern China; written in pencil on the back: Saolin, China my headquarters fro pears in the mountains 1924

Soybeans are temporarily stored in covered bins awaiting shipment at Anda in northern China; written in pencil on the back: Soybeans stored ready for shipment at Anda, North China 1924

Soybeans are temporarily stored in covered bins awaiting shipment at Anda in northern China; written in pencil on the back: Soybeans stored ready for shipment at Anda, North China 1924

Fruit peddlers at Anda in northern China, a man is walking across the tracks of the Trans-Siberian Railway, there are soybeans temporarily stored in covered bins awaiting shipment in the background; written in pencil on the back: Soybeans stored ready for shipment at Anda, North China 1924

View of a river in a valley of the Da Hinggan mountain range in northern China; written in pencil on the back: In Hinggan North China mountains 1924

Man standing on a stone walkway by a small fence by a plot of plant near the Trans-Siberian Railway in northern China; written in pencil on the back: On Siberian Railway 1924

People standing on the platform by Trans-Siberian Railway in northern China; written in pencil on the back: On Siberian Railway 1924

People walking on a street toward a temple in Seoul, Korea in 1924; written in pencil on the back: Seoul, Korea 1924

View of ships at port in Tokyo Bay at Yokahama, Japan from the shore; written in pencil on the back: Yokohama 1924

Steamer ship by the dock at the port in Tokyo Bay at Yokahama, Japan, the ship is possibly a steamer ship called the Admiral from a line of ships owned and operated by the United States government; written in pencil on the back: Yokohama 1924

Passengers waiting to board a steamer ship by the dock at the port in Tokyo Bay at Yokahama, Japan, the ship is possibly a steamer ship called the Admiral from a line of ships owned and operated by the United States government; written in pencil on the back: Yokohama 1924

Porters lifting iron pipes at the port on Tokyo Bay at Yokohama, Japan; written in pencil on the back: Porters lifting iron pipes at Yokohama 1924

View of ships at port in Tokyo Bay at Yokahama, Japan from the shore; written in pencil on the back: Yokohama 1924

Rickshaw man wearing a traditional hat is with his rickshaw on the street at Yokohama, Japan, note that he is barefoot; written in pencil on the back: Yokohama 1924

People in a courtyard by a large ornate tower made of brick with a crumbling archway, Russian words written in Cyrillic script is on the building, taken during N.E. Hansen's trip to Semipalatinsk, Russia

Apple photographed with a ruler for scale for N.E. Hansen's research

Fruit tree on the campus of South Dakota State College was part of N.E. Hansen's research on fruit

N.E. Hansen looking at a fruit tree on the campus of South Dakota State College that was part of Hansen's research on fruit

N.E. Hansen looking at a fruit tree on the campus of South Dakota State College that was part of Hansen's research on fruit

N.E. Hansen standing by a fruit tree on the campus of South Dakota State College that was part of Hansen's research on fruit

N.E. Hansen and his son, Carl Hansen, at an orchard near Chelyabinsk, Russia; written in pencil on the back: one of the orchard places Russia 1934

N.E. Hansen and his son, Carl Hansen, in the back seat of a car with an unknown man in Chelyabinsk, Russia, there are people crowding around the car

N.E. Hansen (right of tree) and his son, Carl Hansen (far right) are with three other men in Russia

Portrait of a young N.E. Hansen wearing a bow tie and a dark jacket

Dr. N.E. Hansen in a suit and tie and wearing a hat while he looks at bushes

Rock and bronze tablet commemorating Dr. N.E. Hansen's work; left to right: South Dakota State College President Leinbach; Lucille Dory, member of the Board of Regents; Governor Mickelson; Dr. Hansen; Frank Cundill, member of the Board of Regents; A. M. Eberle, Dean of Agriculture; and Arlington Eddy, chairman of arrangements.

Crowds of people gathered for a reception for the recognition service for Dr. N.E. Hansen n the campus of South Dakota State College

N.E. Hansen is seated the back of a horse drawn wagon full of wild Siberian alfalfa, there are camels behind him and several other people around him, the photographs was taken while N.E. Hansen was among the Kirghiz Tartars in Semipalatinsk, Siberia

South Dakota Agricultural Experiment Station display featuring examples of new hybrid plums, ornamentals, and crossing and selection work of N.E. Hansen

Dr. N.E. Hansen and an another man are in a greenhouse full of flowers on the campus of South Dakota State College

Aceraceae Neck. Acer Mairunduense ? et Mey.. Plant specimen from the maple family collected by N.E. Hansen, 1924. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants. Specimen is mounted on an 11.5 x 16.5 inch herbarium sheet accompanied by a label printed in Russian in Cyrillic letter with hand-written notation in black ink.

Rosaceae B. Juss. Spirea media Schmidt. Plant specimen collected by N.E. Hansen, 1924. N.E. Hansen (1866-1950) was a Danish-American horticulturist and botanist who was a pioneer in plant breeding. Hansen came to South Dakota in 1895 and became the first head of the Horticultural Department of South Dakota State College. He also served as agricultural explorer for the United States Department of Agriculture. He searched for hardy grasses, fruits, and other plants throughout Europe and Asia and brought them back to the United States to raise or crossbreed with American varieties to produce hardy plants. Specimen is mounted on an 11.5 x 16.5 inch herbarium sheet accompanied by a label printed in Russian in Cyrillic letter with hand-written notation in blank ink.