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CCDB → Angiosperms → Apocynaceae → Alstonia → Alstonia congensis Engl.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Alstonia congensis Engl. | Alstonia congensis Engl. | ~80 | Fedorov, 1974 | Mangenot S., Mangenot G. 1957 | ||
| ! | Alstonia congensis Engl. | Alstonia congensis Engl. | ~80 | Fedorov, 1974 | Favarger 1961 | ||
| ! | Alstonia congensis Engl. | Alstonia congensis Engl. | 88 | Fedorov, 1974 | Marigenot S., Mange- ' not G. 1962 | ||
| ! | Alstonia congensis None | Alstonia congensis Engl. | c.80 | Cave1957 | Mangenot & Yangenot |