Author | Year | Title |
| Necchi, O. & Goes, R.M. et al. | 1990 | Phrenology of Compsopogon coeruleus (Balbis) Montagne (Compsopogonaceae, Rhodophyta) and evaluation of taxonomic characters of the genus. | Show Detail |
| Necchi, O. & Pascoaloto, D. | 1995 | Morphometry of Compsopogon coeruleus (Compsopogonaceae, Rhodophyta) populations in a tropical river basin of southeastern Brazil | Show Detail |
| Necchi, O. & Sheath, R.G. | 1992 | Karyology of Brazilian species of Batrachospermum (Rhodophyta, Batrachospermales) | Show Detail |
| Necchi, O., Sheath, R.G. & Cole, K.M. | 1993 | Distribution and systematics of the freshwater genus Sirodotia (Batrachospermales, Rhodophyta)in North America | Show Detail |
| Necchi, O., Sheath, R.G. & Cole, K.M. | 1993a | Systematics of freshwater Audouinella (Acrochaetiaceae, Rhodophyta)in North America. 1. The reddish species | Show Detail |
| Necchi, O., Sheath, R.G. & Cole, K.M. | 1993b | Systematics of freshwater Audouinella (Acrochaetiaceae, Rhodophyta)in North America. 2. The bluish species | Show Detail |
| Necchi, O. & Vis, M.L. et al. | 2007 | Phylogenetic relationship of Sirodotia species (Batrachospermales, Rhodophyta) in North and South America | Show Detail |
| Necchi, O. & Zucchi, M.R. | 1995 | Record of Paralemanea (Lemaneaceae, Rhodophyta) in South America | Show Detail |
| Necchi, O. & Zucchi, M.R. | 1995a | Systematics and distribution of freshwater Audouinella (Acrochaetiaceae, Rhodophyta) in Brazil | Show Detail |
| Necchi, O. & Zucchi, M.R. | 1997 | Audouinella macrospora (Acrochaetiaceae, Rhodophyta) is the Chantransia stage of Batrachospermum (Batrachospermaceae) | Show Detail |
