BioStor
 | Phylogenetics of Hyacinthaceae Based on Plastid DNA Sequences Martin Pfosser and Franz Speta (1999) Annals of the Missouri Botanical Garden 86: 852-875 |
 | Beaucarnea sanctomariana (Nolinaceae), a new micro-endemic species of Ponytail Palm from the Isthmus of Tehuantepec, Oaxaca, Mexico L Hernández-Sandoval (2001) Novon 11: 50-53 |