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July 30, 2026Short & citedBlog
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Field Notes • Botany

Marie-Victorin

Brother Marie-Victorin, born Conrad Kirouac, was a Quebec botanist, educator, and member of the Brothers of the Christian Schools.

Updated July 30, 20261 min readCited sources

Brother Marie-Victorin, born Conrad Kirouac, was a Quebec botanist, educator, and religious brother who helped found the Montreal Botanical Garden and wrote the landmark *Flore laurentienne*.

Who he was

Marie-Victorin was born in Kingsey Falls, Quebec, in 1885 and joined the Brothers of the Christian Schools. Despite no formal botany training, he became a leading figure in Quebec science through self-study and research.

Key contributions

He authored *Flore laurentienne* (1935), a foundational inventory of Quebec’s flora. He also co-founded the Montreal Botanical Garden and the Institut botanique de l'Université de Montréal, boosting scientific education and public science.

Why he matters

Marie-Victorin is remembered as a pioneer of Quebec’s scientific movement. His work helped build major institutions and popularize botany, making him a foundational figure in Canadian science history.

In short

  • Marie-Victorin wrote *Flore laurentienne*, a key reference on Quebec plants.
  • He helped found the Montreal Botanical Garden and the Institut botanique.
  • He advanced botany and science education in Quebec without formal training.
  • He is a foundational figure in Canadian science history.
Canadian angle

Marie-Victorin is especially important to Quebec and Canadian science history. He helped build key scientific institutions in Montreal and is a foundational figure in Canadian botany.

Quick questions

Who was Marie-Victorin?
Marie-Victorin was the religious name of Conrad Kirouac, a Quebec botanist, educator, and author best known for his scientific work and public promotion of botany.
What is Marie-Victorin known for?
He is known for *Flore laurentienne*, his leadership in Quebec botany, and his role in founding the Montreal Botanical Garden and the Institut botanique de l'Université de Montréal.
What is the Flore laurentienne?
*Flore laurentienne* is Marie-Victorin’s 1935 botanical work describing the flora of Quebec, especially the plants of the St. Lawrence region. It is considered a major reference in Quebec botany.

Sources

  1. Wikipedia — https://en.wikipedia.org/wiki/Marie-Victorin_Kirouac
    Supports: Birth name, dates, role as botanist and author of Flore laurentienne, and association with the Montreal Botanical Garden.
  2. The Canadian Encyclopedia — https://www.thecanadianencyclopedia.ca/en/article/frere-marie-victorin
    Supports: His role in Quebec botany, *Flore laurentienne*, founding scientific organizations, and lack of formal botany training.
  3. Parks Canada — https://www.pc.gc.ca/apps/dfhd/page_nhs_eng.aspx?id=1664
    Supports: National Historic Person entry describing him as botanist, author, educator, and founder of the Institut botanique and Jardin botanique de Montréal.
  4. Parliament of Canada — https://www.ourcommons.ca/Content/House/441/Debates/093/HAN093-E.PDF
    Supports: Background context on Quebec scientific and cultural significance if needed.
  5. Centre de services scolaire des Patriotes — https://cssmv.gouv.qc.ca/la-csmv/portrait-de-la-csmv/qui-etait-marie-victorin/
    Supports: His status as a pioneer of the scientific movement in Quebec, founding institutions, and details of *Flore laurentienne*.