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hemiparasite
hemiparasite n.
Brit. 
/ˌhɛmɪˈparəsʌɪt/
, /ˌhɛmɪˈparəsʌɪt/U.S. /ˌhɛməˈpɛrəˌsaɪt/
[German (F. Johow 1890, in Verhandl. Deutsch. Wissensch. Ver. Santiago II. ii. 67)] Botany a facultative parasite, e.g. certain fungi; also a plant which is partially parasitic, drawing water and mineral nutrients but not synthesized foods from its host, e.g. certain higher plants, as the mistletoe./ˌhɛməˈpɛrəˌsaɪt/ΘΚΠ
the world > plants > by nutrition or respiration > [noun] > parasite plant
parasite1728
epiphyte1849
hemiparasite1891
xenoparasite1905
biotroph1950
1891 Jrnl. Royal Microsc. Soc. 70 Each of these classes, except the last, may be again divided into Holoparasites and Hemiparasites.
1900 B. D. Jackson Gloss. Bot. Terms 120/1 Hemiparasite, a facultative saprophyte, a parasite which can exist as a saprophyte.
1927 H. Gwynne-Vaughan & B. F. Barnes Struct. & Devel. Fungi 13 A species which is usually saprophytic but capable of parasitic existence on occasion is described as a hemi-saprophyte or facultative parasite, and a form which is usually parasitic but sometimes saprophytic as a hemi-parasite or facultative saprophyte.
1960 N. Polunin Introd. Plant Geogr. xiv. 437 There are..two main synusiae in the tropical rain forest—the root-parasites growing on the ground..and the semi-parasites (often termed hemi-parasites) growing epiphytically on the trees.
1970 Nature 21 Mar. 1162/1 Annual hemiparasites characteristically form haustorial connexions (root grafts) with most of the plants that surround them.
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