nRhizogen(Bot) One of a proposed class of flowering plants growning on the roots of other plants and destitute of green foliage.
Century Dictionary and Cyclopedia
nrhizogenA parasitic plant growing on the roots of other plants; specifically, a member of a division of plants (the class Rhizantheæ) proposed by Lindley, composed of flowering plants of a fungoid habit, parasitic upon rootstocks and stems. It embraced the present orders Balanophoreæ and Cytinaceæ, now regarded as belonging to the apetalous dicotyledons. The genus Rafflesia is an illustration.
Chambers's Twentieth Century Dictionary
nRhizogenrī′zō-jen a parasitic plant growing on the root of another plant