Reference

Ted H. M. Mes, Henk 'T Hart (1994): Sedum surculosum and S. jaccardianum (Crassulaceae) share a unique 70 bp deletion in the chloroplast DNA trnL (UAA) - trnF (GAA) intergenic spacer – Österreichische Botanische Zeitschrift = Plant Systematics and Evolution – 193: 213 - 221.