A new species and two new sections of Freycinetia (F. stonei, sect. Solomoniella, and sect. Stoneella) are described from the Solomon Islands. New characters of F. nesiotica, F. membranacea and F. stonei are found and can be used to distinguish these species which were often confused with one another in the past. In particular, the seed anatomy proves useful in distinguishing species and sections in this genus. It is further emphasized that Freycinetia has a very variable morphological differentiation which should be extensively investigated and used in its taxonomy.