Reference

Wolfgang Wetschnig, Andreas Brudermann, Walter Knirsch, Michael Pinter, Martin Pfosser (2012): Massonia pustulata Jacq. 1791 and M. longipes Baker 1897 (Hyacinthaceae), two frequently misunderstood species - or: how M. pustulata became depressed. – Stapfia – 0097: 210 - 221.