This paleobotany list records new fossil plant taxa that were to be described during the year 1952, as well as notes other significant paleobotany discoveries and events which occurred during 1952.
Mosses Name Novelty Status Authors Age Unit Location Synonymized taxa Notes ImagesArchaeomnium arnoldianumComb novjr synonym(Steere) LaMotteMiocene"Carter Creek"A moss. Moved from Palaeohypnum arnoldianum (1947) Moved to Hypnites arnoldianum in 1980Archaeomnium brittoniaeComb novjr synonym(Steere) LaMotteMioceneLatah FormationA moss. Moved from Palaeohypnum brittoniae (1947) Moved to Hypnites brittoniae in 1980Archaeomnium browniiComb novjr synonym(Kirchner) LaMotteEocenePriabonianFlorissant FormationA moss. Moved from Palaeohypnum brownii (1947) First named Hypnum brownii (1898) Moved to Hypnites brownii in 1980Archaeomnium knowltoniComb novjr synonym(E. G. Britton) LaMotteEoceneRoslyn FormationA moss. Moved from Palaeohypnum knowltoni (1947) First named Rhynchostegium knowltoni (1899) Moved to Hypnites knowltoni in 1980
Ferns Name Novelty Status Authors Age Unit Location Synonymized taxa Notes ImagesAthyrium crossiiComb nov(Knowlton) LaMottePaleoceneDenver FormationDiplaiium mulleri (1874)A lady fern species. Moved from Diplazium crossii (1930) First named Asplenium (Diplaiium) crossii (1890)Cyathea branneriComb nov(Hollick & Berry) LaMotte"Tertiary"A tree fern species. Moved from Hemitelia branneri (1924)Cyathea pinnataComb novjr synonym(MacGinitie) LaMotteEoceneIone FormationA tree fern species. Moved from Hemitelia pinnata (1941) Synonymized into Cyathea inequilateralis in 1977Dryopteris claibornianaComb nov(Berry) LaMotteEoceneYegua FormationA wood fern species Moved from Goniopteris claiborniana (1917)Dryopteris escheriComb nov(Heer) LaMotteMioceneA wood fern species Moved from Aspidium escheri (1855)Dryopteris guyottiiComb nov(Lesquereux) LaMotteEocenePriabonianFlorissant FormationA wood fern species Moved from Phegopteris guyottii (1908) First named Sphenopteris guyottii (1883) Dryopteris heeriiComb nov(Ettingshausen) LaMotteA wood fern species Moved from Aspidium heerii (1865) Dryopteris lesquereuxiComb nov(Berry) LaMotteEoceneLysite FormationA wood fern species Moved from Goniopteris lesquereuxi (1932) Dryopteris ursinumComb nov(Unger) LaMotteMioceneA wood fern species Moved from Lastrea (Phegopteris) stiriaca (1855) Dryopteris ursinumComb nov(Heer) LaMottePaleoceneA wood fern species Moved from Aspidium ursinum (1869)
Cycadophytes Name Novelty Status Authors Age Unit Location Synonymized taxa Notes ImagesCtenis hamiltonensisComb nov(Hollick) LaMottePaleocene/Eocene"Hamilton Bay flora"A Ctenis species. Moved from Anthrophyopsis hamiltonensis (1936)Zamites pollardiComb nov(Hollick) LaMottePaleoceneFort Union FormationA Zamites species morphospecies. Moved from Magnolia (?) pollardi (1899)
Conifers
Cupressaceae Name Novelty Status Authors Age Unit Location Synonymized taxa Notes ImagesCallitris helveticaComb nov(Heer) LaMotteMioceneA Callitris species. Moved from Widdringtonia helvetica (1855)Juniperus linguaefoliaComb nov(Lesquereux) LaMotteEocenePriabonianFlorissant FormationA juniper species.Moved from Sabina linguaefolia (1908)First described as Widdringtonia linguaefolia (1883)Thuja naujaticaComb et sp nom nov(Heer) LaMottePaleoceneA hiba species.New species name for Thujopsis gracilis (1920)First described as Thuja (Thujopsis) gracilis (Heer) (1883)
Flowering plants Nymphales Name Novelty Status Authors Age Unit Location Synonymized taxa Notes ImagesNymphaea leeiComb nov(Knowlton) LaMottePaleoceneRaton FormationA waterlily species First described as Castalia leei (1917) Nymphaea pulchellaComb nov(Knowlton) LaMottePaleoceneDawson ArkoseA waterlily species First described as Castalia pulchella (1930)
Magnoliids Name Novelty Status Authors Age Unit Location Synonymized taxa Notes ImagesBeilschmiedia portoricensisComb nov(Hollick) LaMotteMioceneCollazo ShaleA Beilschmiedia species. Moved from Hufetandta portoricensis (1928) First named Aniba portoricensis (1928)Laurophyllum grandisComb nov(Lesquereux) LaMotteMioceneNeroly FormationA lauraceous species. Moved from Laurus grandis (1883)Lindera antiquaComb nov(Heer) LaMotteMioceneA spicewood species First described as Benzoin antiquum (1856) Lindera dilleriComb nov(Knowlton) LaMotteMioceneA spicewood species First described as Benzoin dilleri (1900) Litsea lamarensisComb nov(Knowlton) LaMotteEoceneA Litsea species First described as Malapoenna lamarensis (1899) Litsea lataComb novjr synonym(MacGinitie) LaMotteEoceneIone FormationA lauraceous relative First described as Neolitsea lata (1941) Moved to Cinnamomophyllum latum in 1977Litsea praecursoriaComb nov(Lesquereux) LaMottePaleoceneFort Union FormationA lauraceous relative First described as Tetranthera praecursoria (1883)Litsea sagittataComb nov(Ball) LaMotteEoceneWilcox FormationA Litsea species First described as Malapoenna sagittata (1939) Litsea sessilifloraComb nov(Lesquereux) LaMotteEoceneWilcox FormationTetranthera sessiliflora (1878)A Litsea speciesMoved from Malapoenna sessiliflora (1898) First described as Laurus sessiliflora (1874) Litsea texensisComb nov(Ball) LaMotteEoceneIndio FormationA Litsea species First described as Malapoenna sagittata (1931) Ocotea aliaSp nom novLaMotteEoceneWilcox FormationAndromeda delicatida(of Hollick, 1899)An Ocotea species A replacement name for Mespilodaphne coushatta (Berry, 1916) (1916) Ocotea athenensisComb nov(Ball) LaMotteEoceneWilcox FormationAn Ocotea species Moved from Mespilodaphne athenensis (1939)Ocotea attenuataComb nov(Ball) LaMotteEoceneWilcox FormationAn Ocotea species Moved from Mespilodaphne attenuata (1939)Ocotea berryanaSp nom novLaMotteEoceneLagrange FormationAn Ocotea species A replacement name for Mespilodaphne puryearensis (Berry, 1916) (1916) Ocotea brazosensisComb nov(Ball) LaMotteEoceneFayette FormationAn Ocotea species Moved from Oreodaphne brazosensis (1924)Ocotea caudataComb nov(Berry) LaMotteEoceneMount Selman FormationAn Ocotea species Moved from Mespilodaphne caudata (1924) Includes one subspecies moved from M. c. majorOcotea collazoensisComb nov(Hollick) LaMotteMioceneCollazo ShalesAn Ocotea species Moved from Aniba collazoensis (1928) Ocotea coloradensisComb nov(Brown) LaMotteEoceneGreen River FormationAn Ocotea species Moved from Oreodaphne coloradensis (1934) Ocotea columbianaComb nov(Hollick) LaMotteEoceneLisbon FormationAn Ocotea species Moved from Mespilodaphne columbiana (1924) Ocotea coushattaComb nov(Berry) LaMotteEoceneWilcox FormationTetrantkera praecursoria(of Hollick, 1899)An Ocotea species Moved from Oreodaphne coushatta (1916) Ocotea culebrensisComb nov(Berry) LaMotteOligoceneCulebra FormationAn Ocotea species Moved from Mespilodaphne columbiana (1924) Ocotea eoligniticaComb nov(Hollick) LaMotteEoceneAn Ocotea species Moved from Mespilodaphne eolignitica (1916) First named Andromeda eolignitica (1899) Ocotea hispanioianaComb nov(Berry) LaMotteMioceneArbitonite GroupAn Ocotea species Moved from Mespilodaphne hispanioiana (1922) Ocotea inequilateralisComb nov(Berry) LaMotteEoceneGosport FormationAn Ocotea species Moved from Mespilodaphne inequilateralis (1924) Ocotea intermediaComb nov(Berry) LaMotteEoceneHolly Springs FormationAn Ocotea species Moved from Mespilodaphne intermedia (1930) Ocotea lancifoliaComb nov(Lesquereux) LaMotteEoceneYpresianHolly Springs FormationOreodaphne knowltoni (1929)An Ocotea species Moved from Oreodaphne lancifolia (1934) First described as Sapindus lancifolius (1883)Ocotea lithaeformisComb nov(Lesquereux) LaMotteOreodaphne heerii (1888)An Ocotea species Moved from Mespilodaphne lithaeformis (1888)Ocotea mississippiensisComb nov(Berry) LaMotteEoceneHolly Springs FormationLaurus primigenia (of Hollick)An Ocotea species Moved from Mespilodaphne lithaeformis (1916)Ocotea obtusifoliaComb nov(Berry) LaMotteEoceneHolly Springs FormationCinnamomum sezannense (of Hollick 1899)An Ocotea species Moved from Oreodaphne obtusifolia (1916)Ocotea pagosensisComb nov(Hollick) LaMottePaleoceneAnimas FormationAn Ocotea species Moved from Oreodaphne pagosensis (1924)Ocotea palomarensisComb nov(Berry) LaMotteMioceneAn Ocotea species Moved from Mespilodaphne obtusifolia (1923)Ocotea perseaformisComb nov(Ball) LaMotteEoceneIndio FormationAn Ocotea species Moved from Oreodaphne perseaformis (1939)Ocotea praefractaComb nov(Ball) LaMotteEoceneWilcox FormationAn Ocotea species Moved from Oreodaphne praefracta (1939)Ocotea precoushattaComb nov(Berry) LaMotteEoceneIndio FormationAn Ocotea species Moved from Mespilodaphne perseaformis (1924)Ocotea pseudoglaucaComb nov(Berry) LaMotteEoceneWilcox FormationAn Ocotea species Moved from Mespilodaphne pseudoglauca (1916) Ocotea pseudoguianensisComb nov(Berry) LaMotteEoceneWilcox FormationAn Ocotea species Moved from Mespilodaphne pseudoguianensis (1916) Ocotea puryearensisComb nov(Berry) LaMotteEoceneAckerman FormationAn Ocotea species Moved from Oreodaphne pseudoguianensis (1916) Ocotea (?) ratonensisComb nov(Hollick) LaMottePaleoceneRaton FormationAn Ocotea species Moved from Oreodaphne (?) ratonensis (1917) Ocotea ripariafoliaComb nov(Berry) LaMotteMioceneForest Clay FormationAn Ocotea species Moved from Aniba ripariafolia (1937) Ocotea salinensisComb nov(Berry) LaMotteEoceneWilcox FormationAn Ocotea species Moved from Oreodaphne salinensis (1916)Ocotea tertiariaComb nov(Berry) LaMotteAn Ocotea species Moved from Goeppertia tertiaria (1921) Ocotea texana (Berry)Comb novHomonym(Berry) LaMotteEoceneFayette FormationAn Ocotea species Moved from Mespilodaphne texana (1924) Homonym with Ocotea texana (Ball)Ocotea texana (Ball)Comb novHomonym(Ball) LaMotteEoceneIndio FormationAn Ocotea species Moved from Oreodaphne texana (1931) Homonym with Ocotea texana (Berry)Ocotea viridiflumensisComb nov(Knowlton) LaMotteEoceneGreen River FormationAn Ocotea species Moved from Oreodaphne coloradensis (1923) Ocotea wilcoxensisComb nov(Berry) LaMotteEoceneWilcox FormationAn Ocotea species Moved from Oreodaphne wilcoxensis (1916)Sassafras quilchenensisSp nom novLaMotteEoceneYpresianEocene Okanagan HighlandsColdwater BedsA Sassafras species A new name for Sassafras cretaceum (Penhallow) (1906)Umbellularia saliciformisComb nov(Knowlton & Cockerell) LaMotteMioceneNeroly FormationA California bay species Moved from Laurus saliciformis (1919) First named Laurus salicifolia (Lesquereux) (1883) L. salicifolia a jr homonym of Laurus salicifolia (Banks & Solander)
Monocots Name Novelty Status Authors Age Unit Location Synonymized taxa Notes ImagesCyperacites islandicusComb nov(Heer) LaMottePaleoceneA Cyperacites morphospecies Moved from Cyperites islandicus (1868)ExflabellariaGen et 4 comb novJr synonymLaMotteA palm leaf morphogenusReplacement genus for the homonym Flabellaria (Sternberg) (1822) Jr synonym of Palmacites Contained Flabellaria alaskana, F. groenlandica, F. johnstrupi, & F. lataniaPotamogeton orbusSp nom novLaMotteMioceneLatah FormationA possible pond weed species New name for referred "Potamogeton heterophylloides" fossils P. heterophylloides type specimens moved to Keteleeria heterophylloides (1940)
Basal eudicots Name Novelty Status Authors Age Unit Location Synonymized taxa Notes ImagesNelumbium crossiiComb nov(Knowlton) LaMottePaleoceneArapahoe FormationA lotus relative. Moved from Nelumbo crossii (1930)Nelumbium protoluteaComb nov(Berry) LaMotteEoceneWilcox FormationNelumbo tenuifolia(of Berry, 1935)A lotus relative. Moved from (1949)Nelumbites protoluteus First named Nelumbo protolutea (1917)
Core Eudicots Superasterids