Collection place
- Penin site, Kanif, Dalipebinau municipality454
- Pening, Tanzania1
- Peninica Creek area, Tapanahony river area, Suriname1
- Peninj, Tanzania2
- Peninsula Bay, Tule Lake, Siskiyou County11
- Peninsular Ranges, Riverside County, California191
- Pennsylvania909
- Penobscot County, Maine6
- Penobscot Reservation, Penobscot County, Maine2
- Penobscot Valley, Penobscot County, Maine2
- Penonome, Coclé Province, Panama1
- Penrhyn Atoll, Northern Cook Islands, Cook Islands86
- Pensacola Bay, Santa Rosa County, Florida1
- Pentagon fort, El Hasa Region, Saudi Arabia44
- Pentecost Island, Vanuatu, Melanesia1
- Peny County, Missouri1
- Peoria County, Illinois3
- Peoria, Peoria County, Illinois2
- Per village, Asmat Regency, Papua1
- Perachora, Peloponnese, Greece1