Polypodium fragile var. angustatum Hoffm. in Roem. & Usteri Bot. Mag. (Römer & Usteri) 9: 11 (1790)

Nomenclatural References

• literature : Bot. Mag. (Römer & Usteri) 9: 11, f.14d. 1790 BHL link from IPNI metadata.
• person : Georg Franz Hoffmann (1760-1826) Based on occurrence of standard abbreviation 'Hoffm.' in the authors string.
• person : Johann Jacob Roemer (1763-1819) Based on occurrence of standard abbreviation 'Roem.' in the authors string.
• person : Paul Usteri (1768-1831) Based on occurrence of standard abbreviation 'Usteri' in the authors string.
• database : IPNI record: 206966-2
• database : The Plant List version 1.0, record: tro-50070788
• database : The Plant List version 1.1, record: tro-50070788