Place
- Patuxent Research Refuge, Plot 16781
- Peace Creek, vicinity of Kissinger Spring, 15 miles south of Winter Haven1
- Pelee Point, Lake Erie1
- Pender1
- Pope1
- Prince George's1
- Pt. Pelee National Park1
- Ravena1
- Rhode Island1
- Sampson1
- San Jacinto1
- Sandy bank, north of Dade Co.1
- Sevier1
- Seymour West1
- Shannon1
- Shelburne1
- South Carolina1
- South Fork of the Cumberland River1
- Speechley's Woods, Ann Arbor1
- Sussex1