Author:
Jan Scholten
Book:
Type:
Chapter:
3-644.34.00

English: Spurge family.
Dutch: Wolfsmelkachtigen.
Botany: 300 genera, 5000 species; herbs, shrubs and trees; unisexual; small, highly reduced flowers, accentuated by pseudanthal states; some are like cacti with thorns; leaves alternate; latex.
Content: milky latex, with caoutchouc, rubber; diterpenes; triterpenes, triterpen esters, lanosterol, cycloartenol, 24-methylene-cycloartenol, decan acid, dodecan acid, DOPA; polyhydroxy-diterpenes, which are cancer promotors; forbol, ingenol; phenolic acids; lectins.
Picrodendraceae: 24 genera; 80 species; subtropical to tropical; previously known as the subfamily Oldfieldioideae of the Euphorbiaceae.
Phyllanthaceae: 60 genera; 2000 species; tropics; previously include in Euphorbiaceae. Irvingiaceae: 3 genera; 20 species.

Taxonomy
Euphorbiaceae and Peraceae form a monophyletic group in the Apg3 classification, just Picrodendraceea and Phyllantaceae. Phyllantaceae were a part of Euphorbiaceae in the past. They are treated here as one group. Rafflesiaceae, a parasitic plant family, is member of the Euphorbiaceae group in the Apg3 classification.
In the Plant theory Rafflesiaceae is treated as separate and placed in Subphase 7, being parasitic. Euphorbiaceae is treated as one family with Peraceae, Phyllanthaceae and Picrodendraceae. Euphorbiaceae is placed in Subphase 4.