1. Didelta and Cuspidia
2. Clausen, J., Keck, D. and Hiesey, W. M. 1945.Experimental studies on the nature of species. II. Plant evolution through amphiploidy and autoploidy with examples from the Madiinae174 Carnegie Institute of Washington Publication, No. 564
3. The Durian Theory or the Origin of the Modern Tree
4. TRANSFERENCE OF FUNCTION