Additional Typifications of Ferns in the Guianas and New Types Added.

We present three new lectotypifications for Gymnogramma schomburgkiana (= Jamesonia hispidula), Trichomanes guianense (= T. ankersii), and Adiantum lucidum var. poeppigianum (≡ A. poeppigianum). A neotype for Adiantum petiolatum, a species widespread in the Neotropical region, is also selected. Additionally, type specimens of Adiantum granvilleanum and A. latipinnulum were recently discovered at P Herbarium, and of Adiantum rhomboideum var. strictum at BM. Corrections about the localities where types came from are also presented for Adiantum rhomboideum var. strictum (= A. serratodentatum and/or A. multisorum). [ABSTRACT FROM AUTHOR]