Thesium

{{Short description|Genus of flowering plant in the mistletoe family Santalaceae}} {{Automatic taxobox |image = Thesium alpinum01.jpg |image_caption = ''Thesium alpinum'' |taxon = Thesium |authority = L. | synonyms = {{specieslist |Linophyllum |Ség. (1754) |Austroamericium |Hendrych (1963) |Chrysothesium |(Jaub. & Spach) Hendrych (1993 publ. 1994) |Frisca |Spach (1841) |Hagnothesium |(DC.) Kuntze (1903) |Kunkeliella|Stearn (1972) |Linosyris|Ludw. (1757) |Rhinostegia|Turcz. (1843) |Steinreitera |Opiz (1852) |Thesidium |Sond. (1857) |Thesion |St.-Lag. (1880) |Xerololophus |Dulac (1867) }} |synonyms_ref = <ref>{{cite web|url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:36256-1|title=Thesium L.|website=Plants of the World Online}}</ref> }}

'''''Thesium''''' is a genus of flowering plants in the family Santalaceae. It is particularly well represented in South Africa,<ref>{{cite journal |author=J. P. M. Brenan |year=1979 |title=Three new species of ''Thesium'' (Santalaceae) from South Africa |journal=Kew Bulletin |volume=33 |issue=3 |pages=395–397 |doi=10.2307/4110134 |jstor=4110134|bibcode=1979KewBu..33..395B }}</ref> where roughly half the species occur.<ref name=":0">{{Cite Q|Q134238027}}</ref> Nickrent and others argue that the genera ''Austroamericium'' Hendrych, ''Chrysothesium'' (Jaub. & Spach) Hendrych, ''Kunkeliella'' Stearn, and ''Thesidium'' Sond should be considered as part of this genus.<ref name=":0" />

Species in this genus are parasitic on roots.<ref name=":0" /> Fruits of ''Thesium'' species are nutlike achenes.<ref name=":0" />

The following species are recognised by ''The Plant List'':<ref>{{Cite web |url=http://www.theplantlist.org/1.1/browse/A/Santalaceae/Thesium/ |title=''Thesium'' |publisher=The Plant List |accessdate=14 February 2016}}</ref> {{div col|colwidth=21em}} *''Thesium acuminatum'' A.W. Hill *''Thesium acutissimum'' A. DC. *''Thesium aellenianum'' Lawalrée *''Thesium affine'' Schltr. *''Thesium aggregatum'' A.W. Hill *''Thesium alatum'' Hilliard & B.L. Burtt *''Thesium albomontanum'' Compton *''Thesium alpinum'' L. *''Thesium amicorum'' Lawalrée *''Thesium andongense'' Hiern *''Thesium angolense'' Pilg. *''Thesium angulosum'' DC. *''Thesium annulatum'' A.W. Hill *''Thesium annuum'' Lawalrée *''Thesium aphyllum'' Mart. ''ex'' A. DC. *''Thesium archeri'' Compton *''Thesium arvense'' Horv. *''Thesium asperifolium'' A.W. Hill *''Thesium asterias'' A.W. Hill *''Thesium atrum'' A.W.Hill *''Thesium auriculatum'' Vandas *''Thesium australe'' R. Br. *''Thesium bangweolense'' R.E. Fr. *''Thesium bathyschistum'' Schltr. *''Thesium bavarum'' Schrank *''Thesium bequaertii'' Robyns & Lawalrée *''Thesium bergeri'' Zucc. *''Thesium boissierianum'' A. DC. *''Thesium bomiense'' C.Y. Wu ''ex'' D.D. Tao *''Thesium brachyanthum'' Baker *''Thesium brachygyne'' Schltr. *''Thesium brachyphyllum'' Boiss. *''Thesium brasiliense'' A. DC. *''Thesium brevibarbatum'' Pilg. *''Thesium brevibracteatum'' P.C. Tam *''Thesium breyeri'' N.E. Br. *''Thesium bundiense'' Hilliard *''Thesium burchellii'' A.W. Hill *''Thesium burkei'' A.W. Hill *''Thesium caespitosum'' Robyns & Lawalrée *''Thesium capitatum'' L. *''Thesium capitellatum'' A. DC. *''Thesium capituliflorum'' Sond. *''Thesium cathaicum'' Hendrych *''Thesium celatum'' N.E. Br. *''Thesium chimanimaniense'' Brenan *''Thesium chinense'' Turcz. *''Thesium cinereum'' A.W.Hill *''Thesium commutatum'' Sond. *''Thesium confine'' Sond. *''Thesium congestum'' R.A. Dyer *''Thesium conostylum'' Schltr. *''Thesium cordatum'' A.W. Hill *''Thesium coriarium'' A.W. Hill *''Thesium cornigerum'' A.W. Hill *''Thesium corsalpinum'' Hendrych *''Thesium crassipes'' Robyns & Lawalrée *''Thesium cupressoides'' A.W. Hill *''Thesium cymosum'' A.W. Hill *''Thesium cytisoides'' A.W. Hill *''Thesium davidsonae'' Brenan *''Thesium decaryanum'' Cavaco & Keraudren *''Thesium deceptum'' N.E. Br. *''Thesium decipiens'' Hilliard & B.L. Burtt *''Thesium densiflorum'' A. DC. *''Thesium densum'' N.E. Br. *''Thesium disciflorum'' A.W. Hill *''Thesium disparile'' N.E. Br. *''Thesium dissitiflorum'' Schltr. *''Thesium dissitum'' N.E. Br. *''Thesium divaricatum'' Jan ''ex'' Mert. & W.D.J.Koch *''Thesium diversifolium'' Sond. *''Thesium dolichomeres'' Brenen *''Thesium dollineri'' Murb. ''ex'' Velen. *''Thesium doloense'' Pilg. *''Thesium dumale'' N.E. Br. *''Thesium durum'' Hilliard & B.L. Burtt *''Thesium ebracteatum'' Hayne *''Thesium ecklonianum'' Sond. *''Thesium elatius'' Sond. *''Thesium emodi'' Hendrych *''Thesium equisetoides'' Welw. ''ex'' Hiern *''Thesium ericaefolium'' A. DC. *''Thesium euphorbioides'' L. *''Thesium euphrasioides'' A. DC. *''Thesium exile'' N.E. Br. *''Thesium fallax'' Schltr. *''Thesium fanshawei'' Hilliard *''Thesium fastigiatum'' A.W. Hill *''Thesium fenarium'' A.W. Hill *''Thesium filipes'' A.W.Hill *''Thesium fimbriatum'' A.W. Hill *''Thesium flexuosum'' A. DC. *''Thesium foliosum'' A. DC. *''Thesium fructicosum'' A.W. Hill *''Thesium fulvum'' A.W. Hill *''Thesium funale'' L. *''Thesium fuscum'' A.W.Hill *''Thesium galioides'' A. DC. *''Thesium germainii'' Robyns & Lawalrée *''Thesium glaucescens'' A.W. Hill *''Thesium glomeratum'' A.W. Hill *''Thesium glomeruliflorum'' Sond. *''Thesium goetzeanum'' Engl. *''Thesium gracilarioides'' A.W. Hill *''Thesium gracile'' A.W. Hill *''Thesium gracilentum'' N.E. Br. *''Thesium griseum'' Sond. *''Thesium gypsophiloides'' A.W. Hill *''Thesium hararensis'' A.G. Mill. *''Thesium helichrysoides'' A.W. Hill *''Thesium helodes'' Hilliard *''Thesium hillianum'' Compton *''Thesium himalense'' Royle *''Thesium hirsutum'' A.W. Hill *''Thesium hispanicum'' Hendrych *''Thesium hispidum'' Schlect. *''Thesium hockii'' Robyns & Lawalrée *''Thesium hollandii'' Compton *''Thesium hookeri'' Hendrych *''Thesium horridum'' Pilg. *''Thesium humbertii'' Cavaco & Keraudren *''Thesium humifusum'' DC. *''Thesium humile'' Vahl *''Thesium hystricoides'' A.W. Hill *''Thesium hystrix'' A.W. Hill *''Thesium imbricatum'' Thunb. *''Thesium impeditum'' A.W. Hill *''Thesium inhambanense'' Hilliard *''Thesium inonoense'' Hilliard *''Thesium inversum'' N.E. Br. *''Thesium italicum'' A.DC. *''Thesium jarmilae'' Hendrych *''Thesium jeanae'' Brenan *''Thesium juncifolium'' DC. *''Thesium junodii'' A.W. Hill *''Thesium karooicum'' Compton *''Thesium katangense'' Robyns & Lawalrée *''Thesium kernerianum'' Simonk. *''Thesium kilimandscharicum'' Engl. *''Thesium kyrnosum'' Hendrych *''Thesium lacinulatum'' A.W. Hill *''Thesium laetum'' Robyns & Lawalrée *''Thesium leandrianum'' Cavaco & Keraudren *''Thesium leptocaule'' Sond. *''Thesium lesliei'' N.E. Br. *''Thesium leucanthum'' Gilg *''Thesium lewallei'' Lawalrée *''Thesium libericum'' Hepper & Keay *''Thesium lineatum'' L. f. *''Thesium linophyllon'' L. *''Thesium linophyllum'' L. *''Thesium lisae-mariae'' Stauffer *''Thesium litoreum'' Brenan *''Thesium lobelioides'' A. DC. *''Thesium longiflorum'' Hand.-Mazz. *''Thesium longifolium'' Turcz. *''Thesium lopollense'' Hiern *''Thesium losowskii'' Lawalrée *''Thesium luembense'' Robyns & Lawalrée *''Thesium lycopodioides'' Gilg *''Thesium lynesii'' Robyns & Lawalrée *''Thesium macedonicum'' Hendrych *''Thesium macrogyne'' A.W. Hill *''Thesium macrostachyum'' A. DC. *''Thesium magalismontanum'' Sond. *''Thesium magnifructum'' Hilliard *''Thesium malaissei'' Lawalrée *''Thesium manikense'' Robyns & Lawalrée *''Thesium marlothii'' Schltr. *''Thesium masukense'' Baker ''ex'' A.W. Hill *''Thesium matteii'' Chiov. *''Thesium maximiliani'' Schltr. *''Thesium megalocarpum'' A.W.Hill *''Thesium microcephalum'' A.W. Hill *''Thesium micromeria'' A. DC. *''Thesium microphyllum'' Robyns & Lawalrée *''Thesium micropogon'' A. DC. *''Thesium mossii'' N.E. Br. *''Thesium mukense'' A.W. Hill *''Thesium multiramulosum'' Pilg. *''Thesium myriocladum'' Baker ''ex'' A.W. Hill *''Thesium namaquense'' Schltr. *''Thesium natalense'' Sond. *''Thesium nationae'' A.W. Hill *''Thesium nigricans'' Rendle *''Thesium nigromontanum'' Sond. *''Thesium nigrum'' A.W. Hill *''Thesium nudicaule'' A.W. Hill *''Thesium nutans'' Robyns & Lawalrée *''Thesium occidentale'' A.W. Hill *''Thesium oresigenum'' Compton *''Thesium orgadophilum'' P.C. Tam *''Thesium orientale'' A.W. Hill *''Thesium pallidum'' A. DC. *''Thesium palliolatum'' A.W. Hill *''Thesium paniculatum'' L. *''Thesium parnassi'' A.DC. *''Thesium paronychioides'' Sond. *''Thesium passerinoides'' Robyns & Lawalrée *''Thesium patersonae'' A.W. Hill *''Thesium patulum'' A.W. Hill *''Thesium pawlowskianum'' Lawalrée *''Thesium penicillatum'' A.W. Hill *''Thesium perrieri'' Cavaco & Keraudren *''Thesium phyllostachyum'' Sond. *''Thesium pilosum'' A.W.Hill *''Thesium pinifolium'' A. DC. *''Thesium pleuroloma'' A.W. Hill *''Thesium polycephalum'' Schltr. *''Thesium polygaloides'' A.W.Hill *''Thesium pottiae'' N.E. Br. *''Thesium procerum'' N.E. Br. *''Thesium procumbens'' C.A.Mey. *''Thesium prostratum'' A.W. Hill *''Thesium pseudocystoseiroides'' Cavaco & Keraudren *''Thesium pseudovirgatum'' Levyns *''Thesium psilotoides'' Hance *''Thesium pubescens'' A. DC. *''Thesium pungens'' A.W. Hill *''Thesium pycnanthum'' Schltr. *''Thesium pygmaeum'' Hilliard *''Thesium pyrenaicum'' Pourr. *''Thesium quarrei'' Robyns & Lawalrée *''Thesium quinqueflorum'' Sond. *''Thesium racemosum'' Bernh. *''Thesium radicans'' Hochst. ''ex'' A. Rich. *''Thesium ramosoides'' Hendrych *''Thesium rariflorum'' Sond. *''Thesium rasum'' N.E. Br. *''Thesium rectangulum'' Welw. ''ex'' Hiern *''Thesium reekmansii'' Lawalrée *''Thesium refractum'' C.A.Mey. *''Thesium remotebracteatum'' C.Y. Wu & D.D. Tao *''Thesium repandum'' A.W. Hill *''Thesium resedoides'' A.W.Hill *''Thesium resinifolium'' N.E. Br. *''Thesium rigidum'' Sond. *''Thesium robynsii'' Lawalrée *''Thesium rogersii'' A.W. Hill *''Thesium rostratum'' Mert. & W.D.J.Koch *''Thesium rufescens'' A.W. Hill *''Thesium saxatile'' Turcz. ''ex'' A. DC. *''Thesium scabridulum'' A.W. Hill *''Thesium scabrum'' L. *''Thesium scandens'' Sond. *''Thesium schaijesii'' Lawalrée *''Thesium schliebenii'' Pilg. *''Thesium schmitzii'' Robyns & Lawalrée *''Thesium schumannianum'' Schltr. *''Thesium schweinfurthii'' Engl. *''Thesium scirpioides'' A.W. Hill *''Thesium scoparium'' Peter *''Thesium sedifolium'' A. Dc. ''ex'' Levyns *''Thesium selagineum'' A. DC. *''Thesium semotum'' N.E. Br. *''Thesium sertulariastrum'' A.W. Hill *''Thesium setulosum'' Robyns & Lawalrée *''Thesium shabense'' Lawalrée *''Thesium singulare'' Hilliard *''Thesium sommieri'' Hendrych *''Thesium sonderianum'' Schltr. *''Thesium spartioides'' A.W. Hill *''Thesium sphaerocarpum'' Robyns & Lawalrée *''Thesium spicatum'' L. *''Thesium spinosum'' L. f. *''Thesium spinulosum'' A. DC. *''Thesium squarrosum'' L. f. *''Thesium strictum'' P.J. Bergius *''Thesium stuhlmannii'' Engl. *''Thesium subaphyllum'' Engl. *''Thesium subsimile'' N.E. Br. *''Thesium susannae'' A.W. Hill *''Thesium symoensii'' Lawalrée *''Thesium szowitsii'' A.DC. *''Thesium tamariscinum'' A.W. Hill *''Thesium tenuissimum'' Hook. f. *''Thesium tepuiense'' Steyerm. *''Thesium tetragonum'' A.W.Hill *''Thesium thamnus'' Robyns & Lawalrée *''Thesium tongolicum'' Hendrych *''Thesium translucens'' A.W. Hill *''Thesium transvaalense'' Schltr. *''Thesium triflorum'' Thunb. ''ex'' L. f. *''Thesium triste'' A.W.Hill *''Thesium ulugurense'' Engl. *''Thesium umbelliferum'' A.W. Hill *''Thesium unyikense'' Engl. *''Thesium urceolatum'' A.W. Hill *''Thesium urundiense'' Robyns & Lawalrée *''Thesium ussanguense'' Engl. *''Thesium utile'' A.W. Hill *''Thesium vahrmeijeri'' Brenan *''Thesium vimineum'' Robyns & Lawalrée *''Thesium virens'' A. DC. *''Thesium virgatum'' Lam. *''Thesium viride'' A.W.Hill *''Thesium viridifolium'' Levyns *''Thesium vlachorum'' Aldén *''Thesium welwitschii'' Hiern *''Thesium white-hillense'' Compton *''Thesium whyteanum'' Rendle *''Thesium wilczekianum'' Lawalrée *''Thesium xerophyticum'' A.W. Hill *''Thesium zeyheri'' A. DC. {{div col end}}

==References== {{Reflist}}

==External links== *{{Commons category-inline|Thesium|''Thesium''}} *{{Wikispecies-inline|Thesium|''Thesium''}} *[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=132808 ''Thesium''] in the ''Flora of Chin'' {{Scholia|topic|position=left}}

Category:Thesium Category:Santalaceae genera

Thesium

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