Place
- Knife Island; Gull Rookery1
- L. bank of Nonwatin R. at Armstrong Rd. 6 km. SE. of Black Sturgeon Research Station1
- LaSalle1
- Lac Brochet1
- Lamance Creek, Santa Rosa Mts., 5 mi. W. of Paradise1
- Leelanau1
- Lemont, along Desplaines1
- Levering, near1
- Lincoln, Mechanical Arts Bldg.1
- Lincoln, Mechanical Arts Building1
- Lincoln, city campus, ground north of bldg.1
- Los Angeles1
- Lubec1
- Lucas1
- Mackinac1
- Mackinac Island1
- Madison, 4706 Fond du Lac Trail1
- Manitoulin1
- Manzanita Creek, Mt. Lassen Park1
- Mariposa1