You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Allegheny National Forest, Corydon Township. Along Forest Rd. 452 at head of Schoolhouse Hollow, off Penna. HWY 321 (Allegheny Scenic Drive), ca. 10 miles WSW of Bradford. Remove constraint Place: Allegheny National Forest, Corydon Township. Along Forest Rd. 452 at head of Schoolhouse Hollow, off Penna. HWY 321 (Allegheny Scenic Drive), ca. 10 miles WSW of Bradford. Place Pennsylvania Remove constraint Place: Pennsylvania Topic Caryophyllales Remove constraint Topic: Caryophyllales Topic Magnoliopsida Remove constraint Topic: Magnoliopsida Type still image Remove constraint Type: still image