You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Vicinity of Boyce & Rapides on La Hwy 1 (=5.9 miles south of I-49's Rapides Substation Exit or =1.0 miles north on I-49 exit for La. Hwy 498. Along a small tributary to the Red River. Remove constraint Place: Vicinity of Boyce & Rapides on La Hwy 1 (=5.9 miles south of I-49's Rapides Substation Exit or =1.0 miles north on I-49 exit for La. Hwy 498. Along a small tributary to the Red River.