| Type | Electronic publication |
| Authors(s) | Labiak PH. |
| Year | 2013 |
| Title | Grammitid Ferns (Polypodiaceae): Lellingeria |
| Gepubliceerd in | Flora Neotropica Monograph 111 |
| Published in/Publisher | New York: The New York Botanical Garden. |
| Type | Electronic publication |
| Authors(s) | Labiak PH. |
| Year | 2013 |
| Title | Grammitid Ferns (Polypodiaceae): Lellingeria |
| Gepubliceerd in | Flora Neotropica Monograph 111 |
| Published in/Publisher | New York: The New York Botanical Garden. |