Cyclosorus Link Cyclosorus Link, Hort. Berol. 2: 128. 1833 sec. Fawcett, S. & Smith, A.R. 2021=Thelypteris subg. Cyclosorus (Link) C.V. Morton, Amer. Fern J. 53(4): 153. 1963 syn. sec. Mickel & Smith 2004