BioStor
 | On the nature of anthers (1867) Annals And Magazine of Natural History 19: 228-228 |
 | Synopsis of the Genera and Suprageneric Taxa of Euphorbiaceae Grady L Webster (1994) Annals of the Missouri Botanical Garden 81: 33-144 |
 | Phytochemistry and Systematics of the Euphorbiaceae David S Seigler (1994) Annals of the Missouri Botanical Garden 81: 380-401 |