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Ralph Randles Stewart

1890 – 1993

American botanist

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About Ralph Randles Stewart

Lived 1890 – 1993 (aged 103). Ralph Randles Stewart was an American botanist, botanical collector and scientific collector.

Ralph Randles Stewart (April 15, 1890 – November 6, 1993) usually referred to as R. R. Stewart, was an American botanist and principal of Gordon College in Pakistan.

Education Stewart was born in Hebron, New York. He obtained his B.A. and Ph.D. degrees from Columbia University, New York. He later received a D.Sc. Honorary (1953) from the University of the Punjab, Lahore and an LLD Honorary (1963) from Alma College, Michigan, USA.

Career Upon receiving his college degree from Columbia University in 1911, Stewart accepted a three-year position with the United Presbyterian Church teaching botany and zoology at Gordon College (Pakistan), in Rawalpindi (then in India). After spending from September, 1911 until July, 1914, in that position, he returned to the United States and in the fall of 1914 began graduate studies in botany at Columbia. In 1916 he completed his Ph.D. and married fellow-Columbia graduate student Isabelle Caroline Darrow, sister of botanist George M. Darrow. Returning to Gordon College, Stewart was Professor of Botany (1917–1960) and Principal (1934–1954).

After retiring from Gordon College in 1960, Stewart moved back to the United States. He took a position as Research Associate (1960–1981) at the University of Michigan Herbarium with over 30,000 plant specimens that he had collected in India, Kashmir, Iran, etc.

Awards In recognition of his services to educational and botanical work, Stewart was awarded the Kaisar-i-Hind Medal in 1938, and the Sitara-e-Imtiaz (Star of Distinction) in 1961. He was recognized as a Member of the American Association for Advancement of Sciences in 1984, and as a foreign member Pakistan Academy of Sciences in 1983.

In 1972, botanist Eugene Nasir published Stewartiella is a genus of flowering plants from Afghanistan and Pakistan, belonging to the family Apiaceae and was named in Ralph Randles Stewart's honor.

Activities At that time the flora of India and Western Himalayas was not well known. Stewart embarked on plant collection trips, often on his bicycle, as far as Kashmir and into Western Tibet. He continued to collect plants every summer (1912–1959) without any financial support. In 1960, when Stewart retired at the age of 70, he gave his collection of over 50,000 plant specimens, now called the Stewart Collection, to Professor E. Nasir at Gordon College (Rawalpindi). The Stewart Collection has been deposited in the National Herbarium of the government of Pakistan at Islamabad, leaving a very rich heritage for the students of plant sciences.

Stewart was the father of systematic botany in Pakistan, having spent more than 50 years in the Indian subcontinent. He wrote comprehensive reports on the flora of N. W. Himalayas, Western Tibet, Kashmir, Kurram Valley, flora of Balochistan and grasses of West Pakistan. Apart from collecting flowering plants, Stewart made a scientific contribution in the collection of mosses, plant disease specimens like rusts, smuts and fleshy fungi which have since been published in Mycologia by Dr. Arthur and Dr. Cummins of Purdue University. One of his most important contributions "An Annotated Catalogue of Vascular Plants of Pakistan and Kashmir (1972)" serves as the basis of writing the Flora of Pakistan edited by E. Nasir and S.I. Ali (1970–1988), S. I. Ali and Y. J. Nasir (1989–1991) and S. I. Ali and M. Qaiser (1992–).

Stewart returned to Pakistan in 1990 to visit Gordon College and make a presentation at the International Symposium on Plant life of South Asia. The symposium was organized at the Department of Botany, University of Karachi, to commemorate the centenary of Stewart. The participation of Stewart is indicative of his interest of plant sciences and his love for Pakistan.

In 1982, at the age of 91, Stewart wrote a sort of memoir, Flora of Pakistan: History and Exploration of Plants in Pakistan and Adjoining Areas, in which he wrote:

Personal life In September 1916, Stewart married Isabelle Caroline Darrow (1888-1953) at the bride's home in Middlebury, Vermont. Darrow, also born in Hebron, New York, graduated from Middlebury College in 1911, and then spent 1911-14 teaching science in a United Presbyterian Church position at Anatolia College in Merzifon. She was the sister of botanist George M. Darrow. The couple met studying for graduate degrees in science at Columbia in 1915, both wishing to return to teaching abroad. They had two daughters at Gordon College, Jean Macmillan Stewart Andrews (1919–1970), born in Sialkot, and Ellen Reid Stewart Daniels (1921–1998), born at Jhelum, followed by six grandchildren and six great-grandchildren. After the death of Stewart's first wife, Isabelle (Darrow) Stewart, he married Winifred Hladia Porter (1896–1984) in 1954. He died in 1993 in Duarte, California.

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Important facts

Birth century
Nationality
Education
Columbia University, University of the Punjab, Alma College, University of Punjab
Employers
Gordon College, University of Michigan Herbarium
Awards
Kaisar-i-Hind Medal; Sitara-i-Imtiaz; Sitara-e-Imtiaz
Also known as
R.R.Stewart, R. R. Stewart, Ralph R Stewart

People in Ralph Randles Stewart's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Ralph Randles Stewart's

Frequently asked questions

Who was Ralph Randles Stewart?

American botanist (1890–1993)

When was Ralph Randles Stewart born?

Ralph Randles Stewart was born on 15 April 1890 in New York City.

When did Ralph Randles Stewart die?

Ralph Randles Stewart died on 6 November 1993 in Duarte.

What was Ralph Randles Stewart's occupation?

Ralph Randles Stewart was a botanist, botanical collector and scientific collector.

What nationality was Ralph Randles Stewart?

Ralph Randles Stewart was American.

Sources & further reading

· Wikipedia: Ralph Randles Stewart

· Wikidata: Q3695274

· DBpedia: Ralph Randles Stewart

Cite this page

APA: Biography.guide. (2026). Ralph Randles Stewart. https://biography.guide/ralph-randles-stewart/

MLA: "Ralph Randles Stewart." Biography.guide, https://biography.guide/ralph-randles-stewart/.

Chicago: "Ralph Randles Stewart." Biography.guide. https://biography.guide/ralph-randles-stewart/.

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