Petrosavia sakuraii (Makino) J.J. Sm. ex Steenis
Petrosaviaceae
| Collection Number | Boufford 43943 |
| Collectors | D. Boufford, C. Davidson, S. R. Christoph |
| Identified By | D. Boufford, GH |
| Source | C. Davidson |
| Date | 08 August 2016 |
| Country | Japan |
| region | Honshu |
| prefecture | Nagano |
| district | Kiso |
| Location | C. 3 km from Highway 19 on local road Yomikaki, into Kakizore Ravine. 666 m. |
| Lat/Long | N 35 39 09.2 E 137 36 08.6 |
| Note | Deciduous forest on a steep roadbank. Open shady place in deep leafy litter. |