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The holotype specimen was collected by an expedition of the Fundación Miguel Lillo and the Universidad Nacional de Tucumán, led by José Fernando Bonaparte, from the right (southern) bank of the Senguerr River, in the area between the bend of this river and the Pampa de María Santísima, southeast of the southernmost part of the Sierra de San Bernardo, Chubut Province.
He refused, and after the second world war Brücher emigrated to Argentina and received there in 1948 a professorship in genetics and botany at University of Tucumán (Tucumán, Argentina), then in Caracas (Venezuela), Asunción (Paraguay) and later in Mendoza and Buenos Aires (Argentina).