- Crystal Lake - near Crystal1
- Hubbordston1
- In Portland State Game Area, south of end of Okemos Road. T5N R5W Sec.21 S1/2 SW1/41
- Ionia,1
- Long Lake 8 miles north of Ionia1
- Long Lake, 8 miles north of Ionia on M141
- Morrison Lake.1
- Near Hubbardston. Fish Creek.1
- North side of Grand River Trail, 0.3 mi. east of intersection with Frost Rd.1
- North side of Grand River Trail, just west of intersection with Clintonia Rd. (Clinton Co. line).1
- North side of Grand River Trial, just west of intersection with Clintonia Rd. (Clinton Co. line)1
- Portland State Game Area. Along small tributary to Grand River and elsewhere within the Grand River floodplain.1
- Portland State Game Area. T5N R5W Sec. 20 S1/2 S1/21
- Portland State Game Area; south side of Towner Rd., 0.4 mi. east of intersection with Pohl Rd.1
- South shore of Grand River, past the dead end of Towner Road., Portland State Game Area., ca. 6.5 km SW of Portland.1
- Tamarack Swamp. Hubbardston.1
- [Hubbardston ?]1
- [Presumably "Tamarack swamp near Hubbardston...] EGV1
- at Plantago cordata site, Sec. 2, T8N R5W,1
- ca. 50 ft. W. of Lyons Rd. near the Portland State Game Area ca. 3 mi. N. of Portland. Portland Twp. T6N, R5W, Sec. 7 SE1/41