Meyer, Richard L.

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UARK (University of Arkansas )

Journal of the Arkansas Academy of Science Volume 23 Article 26 1969 Freshwater Algae of Arkansas Richard L. Meyer University of Arkansas, Fayetteville Follow this and additional works at: https://scholarworks.uark.edu/jaas  Part of the Terrestrial and Aquatic Ecology Commons Recommended Citation Meyer, Richard L. (1969) "Freshwater Algae of Arkansas," Journal of the Arkansas Academy of Science: Vol. 23 , Article 26. Available at: https://scholarworks.uark.edu/jaas/vol23/iss1/26 This article is available for use under the Creative Commons license: Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0). Users are able to read, download, copy, print, distribute, search, link to the full texts of these articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This Article is brought to you for free and open access by ScholarWorks@UARK. It has been accepted for inclusion in Journal of the Arkansas Academy of Science by an authorized editor of ScholarWorks@UARK. For more information, please contact scholar@uark.edu. 145Arkansas Academy of Science Proceedings, Vol. 23, 1969THE FRESHWATER ALGAE OF ARKANSASRichard L. MeyerDepartment of Botany and BacteriologyUniversity of Arkansas, Fayetteville, ArkansasI. INTRODUCTION AND RECENT ADDITIONSThis paper presents an initial annotated inventory of the fresh-water algae of Arkansas. These collections include one-hundred forty-eight new records. Thirty-three Cholorophyceae, 11 Xanthophyceae,33 Chrysophyceae, 6 Bacillariophyceae, 11 Pyrrhophyceae, 27 Euglen-ophyceae, 6 Cryptophyceae, 20 Cyanophyceae and 1 Rhodophyceaeare newly reported. A brief description of the habitat and sub-community position is given with each organism. A review of pre-viously published literature is included.This paper presents the first in a series of annotated inventoriesof Freshwater algae collected in Arkansas. These collections weremade for the most part by the author. These collection were takenduring the falland winter of 1968-69; therefore, the numerous springand summer organisms were not studied.Published literature on the algae of Arkansas is limited. Apartial search of the literature produced only three papers. Drs.Hoffman and Causey (1952) and Hoffman (1952) reported certainmembers of the phytoplankton in Lake Fort Smith. In a short paperof Bacillariophyceae from two ponds in Izard County Robinson, Jr.(1953) recorded 25 species. Further published records of Arkansasalgae willbe included in future papers.The annotation accompanying the inventory gives a briefdescription of the habitats and principle aquatic sub-community inwhich the species was collected. The aquatic freshwater sub-commun-ities used are those described by Round (1965) and indicated by theletters in parenthesis. There are: euplankton (P), neuston (N),epipelic (EP), epilithic (EL), epiphytic (ET) and epizooic (EZ).Those algae which are in close association with epiphytes but notattached to them are the metaphyton (M) (Behre, 1956).A total of 148 species and varieties previously unreported arelisted. Thirty-three Chlorophyceae, 11 Xanthophyceae, 33 Chrys-ophyceae, 6 Bacillariophyceae, 11 Pyrrhophyceae, 27 Euglenophyceae,6 Cryptophyceae, 20 Cyanophyceae and 1 Rhodophyceae are newlyreported. The new records for the State of Arkansas are indicatedwith an asterisk (*).ACKNOWLEDGEMENTSThe author wishes to express his appreciation to Mr. J. H.Wheeler for his aid in collecting samples. The samples contributed 145Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Publis d by Arkansa  Aca emy of Science, 1969146Arkansas Academy of Science Proceedingsby Drs. J. Brown and J. Rakes, R. Gearheart and W. Smith includedinteresting algae. This research was supported by the Water Re-sources Research Center, University of Arkansas grant No. A-001-ARK and National Institutes of Health grant No. FR107101-02.Division ChlorophytaClass ChlorophyceaeOrder VolvocalesThe nomenclature used within this order is that ofPestalozzi (1961).Huber-Eudorina elegans Ehr.Organically rich pools, Eutrophic lakes and ponds. (P)Gonium pectorale Mul. *Organically rich ponds. (P)Pandorina morum (Mull.) BoryEutrophic lake and organically rich pools. (P)Phacotus lenticularis (Ehr.) Stein*?Eutrophic lake. (P)Pteromonas agulosa Lemm.Organically rich vernal pool. (P)Order TetrapsporalesApiocystis brauniana Nag. ::"Organically rich pond. (ET)Asterococcus limneticus SmithEutrophic lakes. (P)Tetraspora gelatinosa (Vauch.) Desvaux. *Organically rich pools and ditchs. (ET & P)Order ChlorococcalesAnkistrodesmis falcatus (Cor.) RalfsOrganically rich pool and ditchs, eutrophic lakes. (P)Botryococcus braunii Kutz.*Organically rich ponds. (P)Chlorella vulgaris Bej.*Organically rich ponds. (P)Closteriopsis longissima Lemm.Organically rich ponds. (P)Dictyosphaeridium ehrenbergianum Nag.Moderately eutrophic lakes. (P)D. punchella WoodSlightly eutrophic lakes. (P)146Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26https://scholarworks.uark.edu/jaas/vol23/iss1/26147The Freshwater Algae of ArkansasKirchneriella lunaris (Kirch.) Mob.*Eutrophic ponds and lakes, rivers. (P)Micractinium pusillum Fres.*Eutrophic lake. (P)M. quadrisetosum (Lemm.) Smith *Organically rich ponds. (P)Pediastrum boryanium (Turp.) Menegh.*River. (P)P. duplex var. graciliumum W. & W.Slightly eutrophic lakes. (P)P. simplex (Mey.) Lemm. *Eutrophic lakes. (P)Planktosphaeria gelatinosa SmithEutrophic lakes. (P)Scenedesmus acuminatus (Lag.) Chod.*Organically rich ponds. (P)S. dimorphus (Turp.) Kutz. *River. (P)S. incrassatulus Boh.*Organically rich ponds. (P)S. quadracaudata (Turp.) deBreb.*Eutrophic lakes. (P)Sphaerocystis schroeteri Chod.Eutrophic lakes. (P)Tetraedron minimum (Braun) Hansg. *Eutrophic lakes. (P)Tetrallantos lagerheimii Teil.*Eutrophic lakes and ponds. (P)Tetrastrun staurogeniaforme (Schroed.) Lemm.Eutrophic lakes.Order UlotrichalesBinuclearis tatrana Witt.*Organically rich roadside ditch. (ET)Geminella mutabilis (deBreb.) Willie•Moderately eutrophic lake. (EL)Microspora floccosa (Vauch.) Thur.*Eutrophic ponds. (EP)Stichococcus bacillifera Nag.*Eutrophic pond. (ET)Order ChaetophoralesAphanochaete polychaete (Hansg.) FritschOrganically rich pond. (ET) 147Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969148Avk(L7iscL8 AcacLcTii'y of ISctcncc iTOCCcdtTiffsChaetophora elegans (Roth) C. Ag.*Organically rich roadside ditch. (ET)C. incrassata (Huds.) Haz.*Organically rich pond. (ET)Draparnaldia glomerata (Vauch.) C. Ag.•Seepage pool. (ET)D. mutabilis (Roth) Bory*Organically rich seeps and ditches. (ET)Class ConjugatophyceaeOrder ZygnematalesDesmidium baileyi (Ralfs) Nords.River, tychoplanktor. (P)D. schwartzii C. Ag.River, tychoplanktor. (P)Staurastrum furcigerum deBreb.Eutrophic lake. (P)Division ChrysophyceaeClass XanthophyceaeThe nomenclature used within this(1939).class that Pascheris ofOrder HeterotrichalesChloridella simplex Pasch.*Organically rich pond. (P)Chlorobotrys simples Pasch. *On damp clay soil. (EL)Goniochloris fallax Fott*Organically rich pond. (M)Monallantus brevicylindrus PaschOrganically rich pond. (M)Ophiocytium cochleare A. Br.*Organically rich pond. (M)Order HeterococcalesTribonema affine WestModerately eutrophic lake. (M)T. ambiguum Skuja•Organically rich pond. (M)T. minus Haz.*Seepage pool. (M)T. viride Pasch.•Organically rich pond. (M)*148Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26https://scholarworks.uark.edu/jaas/vol23/iss1/26149The Freshwater Algae of ArkansasT. vulgare Pasch.*Seepage pool. (M)Class ChrysophyceaeOrder ChrysomonadalesAnthophysa vegetans (Mul.) Stein*River, tychoplanktor. (P)Chromophyton rosanoffii Wor.*Organically rich vernal pool. (N)Chromulina gonoides SkujaSeepage pool. (M)C. tenera Matv.•Organically rich vernal pool. (P)Chrysochromulina parvum Lack. *Eutrophic lake. (P)Chrysococcus minutus (Fritsch) Nyg.*Eutrophic lake. (P)C. rufescens KlebsOrganically rich roadside ditch andC. triporus Matv.* eutrophic lakes (P)Organically rich pool. (P)Dinobryon divergens Imn.Eutrophic lakes. (P)D. elegans Korsch.*River, tychoplanktor. (P)D. sertularia Ehr.*Eutrophic lakes and ponds. (P)Epipyxis utriculus Ehr.*Organically rich pond. (ET)Kephyrion capuliforme Con.*?Eutrophic lakes. (P)K. inconstans Schm.*Eutrophic lakes. (P)K. rubri-claustri Con.*Eutrophic lakes. (P)K. spirale (Lack.) Con. *Eutrophic Lakes and ponds. (P)Mallomonas acaroides Petry em. Kreig.*Eutrophic lakes. (P)M. caudata Iwan. em. Kreig.*Mesotrophic lake. (P)M. coronata Boloch.*Eutrophic ponds and vernal pools. (P) 149Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969150Arkansas Academy of Science ProceedingsM. elliptica (Kiss.) Con."Organically rich roadside ditch (P)M spinifera Con.Organicaly rich roadside ditchM. tonsurata Teil.• (P)River. (P)Pseudokephyrion pilidum Schil. *Eutrophic lake. (P)P. schilleri Con.Eutrophic lake. (P)Stenokalyx cylindrica Schm.*Eutrophic lake (P)S. laticollis Con. ::Eutrophic lake. (P)Synura petersenii Kor.*River and lakes. (P)S. sphagnicola Kor.•Mesotrophic lake. (P)S. uvella Ehr. eui. Kor.*Eutrophic ponds. (P)Order RhizochrysidalesChrysoamphitrema brannea Scher.Eutrophic lake. (ET)Chrysopyxis ascendens Wisl.*Organically rich pond. (ET)C. bipes SteinOrganically rich pond. (ET)Order ChrysocapsalesPhaeoplaca thallosa Chod.Creek. (ET)Class BacillariophyceaeOrder CentralesMelosira granulata (Ehr.) RalfsEutrophic lakes (P)M. italica KutzEutrophic lakes (P)Order PennalesEutrophic lakes (P)Asterionella formosa Hass.**150Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26https://scholarworks.uark.edu/jaas/vol23/iss1/26151The Freshwater Algae of ArkansasFragillaria crotonensis Kitt.Eutrophic lakes. (P)Synedra acus Kutz.Eutrophic lakes. (P)Tabellaria fenestrata (Lyngb.) Kutz.*Mesotrophic lake. (P)T. floccusosa (Roth) Kutz.*Eutrophic lake. (P)Division PyrrhophytaClass DinophyceaeThe nomenclature followed within(1933)this class is that of SchillerOrder GymnodinialesGymnodinium obesum Schil.*Organically rich pond. (P)Massartia musei (Danysz.) Schil.Organically rich pond. (P)Order PeridinalesCeratium cornutum Ehr.*Mesotrophic lake. (P)C. hirundinella Mull.*Mesotrophic lake. (P)Hemidinum natusum Stein*Organically rich pond. (P)Peridinium bipes SteinOrganically rich pond. (P)P. cinctum Mull.*Eutrophic lake. (P)P. palustre (Lind.) Lefev. *River. (P)P. pusillum (Pen.) Lemm. *Mesotrophic lake. (P)P. willei Huit.-Kass.*Eutrophic lake. (P)P. wisconsinense Eddy.*Mesotrophic lake. (P)Division EuglenophytaThe nomenclature used within this divisionPestalozzi (1955).is of Huber-151Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969152Arkansas Academy of Science ProceedingsClass EuglenophyceaeOrder EuglenalesColacium vesiculosum Ehr.Vernal pool. (EZ)Euglena agilis Cart.Organically rich vernal pool. (P)E. piciformis Klebs*On damp clay soil and in eutrophicE. sangunea Ehr. *lakes. (P)Organically rich pond. (P)E. sangunea var. furcata Hub."On damp clay soil. (EL)E. schmitzii Goj.*Organically rich pond. (P)E. spirogyra Ehr.*Mesotrophic lake. (P)E. van gooi Defl.*Vernal pool. (P)E. variabilis Klebs*Seepage pool. (M)E. viridis Ehr.*Creek. (P)Monomorphina pyrum (Ehr.) Mereschk.Vernal pool. (P)Phacus acumunatus StokesVernal pool. (P)r. brevicaudata (Klebs) Lemm.Mesotrophic lake. (P)P. curvicaudata Swir.Organically rich pond. (P)P. tortus (Lemm.) Skv.*Vernal pool. (P)Strombomona deflandrei (Rool) Defl.Organically rich pond. (P)S. longicauda (Swir.) Defl.•Organically rich pond. (P)rrachelomonas helvetica var. cordiforniisOrganically rich pond. (P) (Roll) Pop.*r. hispida var. austrilica Playf. *Eutrophic lake. (P)r. hispida var. punctata LemmaOrganically rich pond. (P)152Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26https://scholarworks.uark.edu/jaas/vol23/iss1/26153The Freshwater Algae of ArkansasT. intermidia Dang.*Organically rich pond. (P)T. rugulosa Stein*Organicall rich pond. (P)T. scabra Playf.*Organically rich pond. (P)T. sydnensis Playf.*Organically rich ponds and vernal pools. (P)T. volvocina Ehr.Mesotrophic and eutropic lakes. (P)T. volvocinopsis Swir.Mesotrophic and eutrophic lakes and ponds. (P)Order HeteronematalesPeranema inflexum Skuja*Organically rich pasteur pool (P)P. trichophora (Ehr.) Stein *Organically rich pasteur pool. (P)Class CryptophyceaeOrder CryptomonadalesChroomonas acuta Uter. (?)*Organically rich pond. (P)Cryptomonas caudata Schil.*Seepage pool. (M)C. erosa Ehr.*Organically rich ponds and mesotrophic lakes. (P)r. oblonga Playf. *River. (P)C. obovata Skuja*Organically rich pools. (P)C. ovata Ehr.•Mesotrophic lakes. (P)Division CyanophytaClass CyanophyceaeThe nomenclature used within this class is that(1932). 153Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969154Arkansas Academy of Science ProceedingsOrder ChroococcalesAnphanocapsa biformis A. Br.*On limestone seep. (EL)A. grevellei (Hass.) Rab.*River. (P)Chroococcus turgidus (Kutz.) Nag.*River (P)Dactylococcopsis smithii Chod. et Chod. (?)*Eutrophic lake. (P)Gomphosphaera aponina Kutz.River. (P)Merismopedia marsonii Lemm. *Organically rich pond. (P)M. punctata Mey.•Organically rich pond. (P)M. tenussima Lemm.•Organically rich, slow flowering stream. (P)Polycystis aeruginosa Kutz.*Organicaly rich ponds and eutrophic lakes. (P)Order ChamaesiphonalesChamaesiphon incrustans Grun.*On Cladophora sp. in creek. (ET)Order OscillatorialesAphanizomenon flos-aquae (L.) Ralfs*Eutrophic lakes and ponds. (P)Nostoc planctonicum Por. et Tschern. *Organically rich vernal pool. (P)Oscillatoria agardhii Gom.*Organically rich pond. (P)r. amoena Gom. *Seepage pool. (EL)O. chlorina Kutz*Seepage on clay soid. (EL)O. ornata Kutz.*Organically rich pond. (P-EL)O. principees Vauch.*Organically rich pond. (P)154Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26https://scholarworks.uark.edu/jaas/vol23/iss1/26155The Freshwater Algae of Arkansas0. rubescens deCand.*Mesotrophic lake. (P)0. tenuis C. Ag.*Mesotrophic lake. (P)0. tenuis var. natans Gom.*Organically rich vernal pool (P)Division RhodophytaClass RhodophyceaeOrder NemalinionalesAudouinella violacea (Kutz.) HamStream. (EL)LITERATURE CITEDBehre, K., 1956Die Algen besiedlund einiger Seen urn Bremen und Bremerhaven.Ver. Inst. Meersk. Bermmerhaven 4:221-283Hoffman, C. E., 1952Limnological studies in Arkansas II. The effect of IntenseRainfall on the Abundance and Vertical Distribution of Plank-ton in Lake Fort Smith, Arkansas. Ark. Acad. Sci., Proc5:83-89.and D. Causey, 1952Limnological Studies in Arkansas I. Physico-chemical and netPlankton Studies of Lake Fort Smith in its Fourth Year ofImpoundment. Ark. Acad. Sci., Proc. 5:55-72.Huber-Pestalozzi, G., 1955Das Phytoplankton des Susswasser Bd. 16, T. 4 Euglen-ophyceae. E. Schweizerbart'sche Verlag. Stuttgart. 606 pp., 1961Das Phytoplankton des Susswasser Bd. 16, T. 6 Volvocales.E. Schweizerbart'sche Verlag. Stuttgart. 644 pp.Pascher, A., 1939Heterokonten. In L. Rabenhorst, Kryptogamen-Flora Deutsch-lands, Osterreich und der Schweiz. Bd. 11. 1092 pp.Robinson, Jr., A., 1953Comments on the Bacillariophyceae of North Central ArkansasArk. Acad. Sci., Proc. 6:51-52.*155Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969156Arkansas Academy of Science ProceedingsRound, F. E., 1965The Biology of Algae. E. Arnold, Ltd. London, 269 pp.Schiller, J., 1933-5Dinoflagellatae. InL. Rabenhorst, Kryptogamen-Flora Deutsch-land, Osterreich und der Sehweiz. Bd. 10, T. 3(1-2). 579 and617 pp.156Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26https://scholarworks.uark.edu/jaas/vol23/iss1/26

Freshwater Algae of Arkansas

ScholarWorks@UARK

Journal of the Arkansas Academy of ScienceVolume 23 Article 261969Freshwater Algae of ArkansasRichard L. MeyerUniversity of Arkansas, FayettevilleFollow this and additional works at: http://scholarworks.uark.edu/jaasPart of the Terrestrial and Aquatic Ecology CommonsThis article is available for use under the Creative Commons license: Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0). Users are able toread, download, copy, print, distribute, search, link to the full texts of these articles, or use them for any other lawful purpose, without asking priorpermission from the publisher or the author.This Article is brought to you for free and open access by ScholarWorks@UARK. It has been accepted for inclusion in Journal of the Arkansas Academyof Science by an authorized editor of ScholarWorks@UARK. For more information, please contact scholar@uark.edu, ccmiddle@uark.edu.Recommended CitationMeyer, Richard L. (1969) "Freshwater Algae of Arkansas," Journal of the Arkansas Academy of Science: Vol. 23 , Article 26.Available at: http://scholarworks.uark.edu/jaas/vol23/iss1/26145Arkansas Academy of Science Proceedings, Vol. 23, 1969THE FRESHWATER ALGAE OF ARKANSASRichard L. MeyerDepartment of Botany and BacteriologyUniversity of Arkansas, Fayetteville, ArkansasI. INTRODUCTION AND RECENT ADDITIONSThis paper presents an initial annotated inventory of the fresh-water algae of Arkansas. These collections include one-hundred forty-eight new records. Thirty-three Cholorophyceae, 11 Xanthophyceae,33 Chrysophyceae, 6 Bacillariophyceae, 11 Pyrrhophyceae, 27 Euglen-ophyceae, 6 Cryptophyceae, 20 Cyanophyceae and 1 Rhodophyceaeare newly reported. A brief description of the habitat and sub-community position is given with each organism. A review of pre-viously published literature is included.This paper presents the first in a series of annotated inventoriesof Freshwater algae collected in Arkansas. These collections weremade for the most part by the author. These collection were takenduring the falland winter of 1968-69; therefore, the numerous springand summer organisms were not studied.Published literature on the algae of Arkansas is limited. Apartial search of the literature produced only three papers. Drs.Hoffman and Causey (1952) and Hoffman (1952) reported certainmembers of the phytoplankton in Lake Fort Smith. In a short paperof Bacillariophyceae from two ponds in Izard County Robinson, Jr.(1953) recorded 25 species. Further published records of Arkansasalgae willbe included in future papers.The annotation accompanying the inventory gives a briefdescription of the habitats and principle aquatic sub-community inwhich the species was collected. The aquatic freshwater sub-commun-ities used are those described by Round (1965) and indicated by theletters in parenthesis. There are: euplankton (P), neuston (N),epipelic (EP), epilithic (EL), epiphytic (ET) and epizooic (EZ).Those algae which are in close association with epiphytes but notattached to them are the metaphyton (M) (Behre, 1956).A total of 148 species and varieties previously unreported arelisted. Thirty-three Chlorophyceae, 11 Xanthophyceae, 33 Chrys-ophyceae, 6 Bacillariophyceae, 11 Pyrrhophyceae, 27 Euglenophyceae,6 Cryptophyceae, 20 Cyanophyceae and 1 Rhodophyceae are newlyreported. The new records for the State of Arkansas are indicatedwith an asterisk (*).ACKNOWLEDGEMENTSThe author wishes to express his appreciation to Mr. J. H.Wheeler for his aid in collecting samples. The samples contributed 145Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Publis d by Arkansa  Aca emy of Science, 1969146Arkansas Academy of Science Proceedingsby Drs. J. Brown and J. Rakes, R. Gearheart and W. Smith includedinteresting algae. This research was supported by the Water Re-sources Research Center, University of Arkansas grant No. A-001-ARK and National Institutes of Health grant No. FR107101-02.Division ChlorophytaClass ChlorophyceaeOrder VolvocalesThe nomenclature used within this order is that ofPestalozzi (1961).Huber-Eudorina elegans Ehr.Organically rich pools, Eutrophic lakes and ponds. (P)Gonium pectorale Mul. *Organically rich ponds. (P)Pandorina morum (Mull.) BoryEutrophic lake and organically rich pools. (P)Phacotus lenticularis (Ehr.) Stein *?Eutrophic lake. (P)Pteromonas agulosa Lemm.Organically rich vernal pool. (P)Order TetrapsporalesApiocystis brauniana Nag. ::"Organically rich pond. (ET)Asterococcus limneticus SmithEutrophic lakes. (P)Tetraspora gelatinosa (Vauch.) Desvaux. *Organically rich pools and ditchs. (ET & P)Order ChlorococcalesAnkistrodesmis falcatus (Cor.) RalfsOrganically rich pool and ditchs, eutrophic lakes. (P)Botryococcus braunii Kutz. *Organically rich ponds. (P)Chlorella vulgaris Bej. *Organically rich ponds. (P)Closteriopsis longissima Lemm.Organically rich ponds. (P)Dictyosphaeridium ehrenbergianum Nag.Moderately eutrophic lakes. (P)D. punchella WoodSlightly eutrophic lakes. (P)146Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26http://scholarworks.uark.edu/jaas/vol23/iss1/26147The Freshwater Algae of ArkansasKirchneriella lunaris (Kirch.) Mob. *Eutrophic ponds and lakes, rivers. (P)Micractinium pusillum Fres. *Eutrophic lake. (P)M. quadrisetosum (Lemm.) Smith *Organically rich ponds. (P)Pediastrum boryanium (Turp.) Menegh. *River. (P)P. duplex var. graciliumum W. & W.Slightly eutrophic lakes. (P)P. simplex (Mey.) Lemm. *Eutrophic lakes. (P)Planktosphaeria gelatinosa SmithEutrophic lakes. (P)Scenedesmus acuminatus (Lag.) Chod. *Organically rich ponds. (P)S. dimorphus (Turp.) Kutz. *River. (P)S. incrassatulus Boh. *Organically rich ponds. (P)S. quadracaudata (Turp.) deBreb. *Eutrophic lakes. (P)Sphaerocystis schroeteri Chod.Eutrophic lakes. (P)Tetraedron minimum (Braun) Hansg. *Eutrophic lakes. (P)Tetrallantos lagerheimii Teil. *Eutrophic lakes and ponds. (P)Tetrastrun staurogeniaforme (Schroed.) Lemm.Eutrophic lakes.Order UlotrichalesBinuclearis tatrana Witt. *Organically rich roadside ditch. (ET)Geminella mutabilis (deBreb.) Willie•Moderately eutrophic lake. (EL)Microspora floccosa (Vauch.) Thur. *Eutrophic ponds. (EP)Stichococcus bacillifera Nag. *Eutrophic pond. (ET)Order ChaetophoralesAphanochaete polychaete (Hansg.) FritschOrganically rich pond. (ET) 147Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969148Avk(L7iscL8 AcacLcTii'y of ISctcncc iTOCCcdtTiffsChaetophora elegans (Roth) C. Ag. *Organically rich roadside ditch. (ET)C. incrassata (Huds.) Haz. *Organically rich pond. (ET)Draparnaldia glomerata (Vauch.) C. Ag. •Seepage pool. (ET)D. mutabilis (Roth) Bory *Organically rich seeps and ditches. (ET)Class ConjugatophyceaeOrder ZygnematalesDesmidium baileyi (Ralfs) Nords.River, tychoplanktor. (P)D. schwartzii C. Ag.River, tychoplanktor. (P)Staurastrum furcigerum deBreb.Eutrophic lake. (P)Division ChrysophyceaeClass XanthophyceaeThe nomenclature used within this(1939).class that Pascheris ofOrder HeterotrichalesChloridella simplex Pasch. *Organically rich pond. (P)Chlorobotrys simples Pasch. *On damp clay soil. (EL)Goniochloris fallax Fott *Organically rich pond. (M)Monallantus brevicylindrus PaschOrganically rich pond. (M)Ophiocytium cochleare A. Br. *Organically rich pond. (M)Order HeterococcalesTribonema affine WestModerately eutrophic lake. (M)T. ambiguum Skuja •Organically rich pond. (M)T. minus Haz. *Seepage pool. (M)T. viride Pasch. •Organically rich pond. (M)*148Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26http://scholarworks.uark.edu/jaas/vol23/iss1/26149The Freshwater Algae of ArkansasT. vulgare Pasch. *Seepage pool. (M)Class ChrysophyceaeOrder ChrysomonadalesAnthophysa vegetans (Mul.) Stein *River, tychoplanktor. (P)Chromophyton rosanoffii Wor. *Organically rich vernal pool. (N)Chromulina gonoides SkujaSeepage pool. (M)C. tenera Matv.•Organically rich vernal pool. (P)Chrysochromulina parvum Lack. *Eutrophic lake. (P)Chrysococcus minutus (Fritsch) Nyg. *Eutrophic lake. (P)C. rufescens KlebsOrganically rich roadside ditch andC. triporus Matv. *eutrophic lakes (P)Organically rich pool. (P)Dinobryon divergens Imn.Eutrophic lakes. (P)D. elegans Korsch. *River, tychoplanktor. (P)D. sertularia Ehr. *Eutrophic lakes and ponds. (P)Epipyxis utriculus Ehr.*Organically rich pond. (ET)Kephyrion capuliforme Con. *?Eutrophic lakes. (P)K. inconstans Schm. *Eutrophic lakes. (P)K. rubri-claustri Con. *Eutrophic lakes. (P)K. spirale (Lack.) Con. *Eutrophic Lakes and ponds. (P)Mallomonas acaroides Petry em. Kreig. *Eutrophic lakes. (P)M. caudata Iwan. em. Kreig.*Mesotrophic lake. (P)M. coronata Boloch. *Eutrophic ponds and vernal pools. (P) 149Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969150Arkansas Academy of Science ProceedingsM. elliptica (Kiss.) Con. "Organically rich roadside ditch (P)M spinifera Con.Organicaly rich roadside ditchM. tonsurata Teil.•(P)River. (P)Pseudokephyrion pilidum Schil. *Eutrophic lake. (P)P. schilleri Con.Eutrophic lake. (P)Stenokalyx cylindrica Schm. *Eutrophic lake (P)S. laticollis Con. ::Eutrophic lake. (P)Synura petersenii Kor. *River and lakes. (P)S. sphagnicola Kor.•Mesotrophic lake. (P)S. uvella Ehr. eui. Kor. *Eutrophic ponds. (P)Order RhizochrysidalesChrysoamphitrema brannea Scher.Eutrophic lake. (ET)Chrysopyxis ascendens Wisl. *Organically rich pond. (ET)C. bipes SteinOrganically rich pond. (ET)Order ChrysocapsalesPhaeoplaca thallosa Chod.Creek. (ET)Class BacillariophyceaeOrder CentralesMelosira granulata (Ehr.) RalfsEutrophic lakes (P)M. italica KutzEutrophic lakes (P)Order PennalesEutrophic lakes (P)Asterionella formosa Hass. **150Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26http://scholarworks.uark.edu/jaas/vol23/iss1/26151The Freshwater Algae of ArkansasFragillaria crotonensis Kitt.Eutrophic lakes. (P)Synedra acus Kutz.Eutrophic lakes. (P)Tabellaria fenestrata (Lyngb.) Kutz. *Mesotrophic lake. (P)T. floccusosa (Roth) Kutz. *Eutrophic lake. (P)Division PyrrhophytaClass DinophyceaeThe nomenclature followed within(1933)this class is that of SchillerOrder GymnodinialesGymnodinium obesum Schil. *Organically rich pond. (P)Massartia musei (Danysz.) Schil.Organically rich pond. (P)Order PeridinalesCeratium cornutum Ehr.*Mesotrophic lake. (P)C. hirundinella Mull. *Mesotrophic lake. (P)Hemidinum natusum Stein *Organically rich pond. (P)Peridinium bipes SteinOrganically rich pond. (P)P. cinctum Mull. *Eutrophic lake. (P)P. palustre (Lind.) Lefev. *River. (P)P. pusillum (Pen.) Lemm. *Mesotrophic lake. (P)P. willei Huit.-Kass. *Eutrophic lake. (P)P. wisconsinense Eddy. *Mesotrophic lake. (P)Division EuglenophytaThe nomenclature used within this divisionPestalozzi (1955).is of Huber-151Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969152Arkansas Academy of Science ProceedingsClass EuglenophyceaeOrder EuglenalesColacium vesiculosum Ehr.Vernal pool. (EZ)Euglena agilis Cart.Organically rich vernal pool. (P)E. piciformis Klebs *On damp clay soil and in eutrophicE. sangunea Ehr. *lakes. (P)Organically rich pond. (P)E. sangunea var. furcata Hub."On damp clay soil. (EL)E. schmitzii Goj. *Organically rich pond. (P)E. spirogyra Ehr. *Mesotrophic lake. (P)E. van gooi Defl. *Vernal pool. (P)E. variabilis Klebs *Seepage pool. (M)E. viridis Ehr. *Creek. (P)Monomorphina pyrum (Ehr.) Mereschk.Vernal pool. (P)Phacus acumunatus StokesVernal pool. (P)r. brevicaudata (Klebs) Lemm.Mesotrophic lake. (P)P. curvicaudata Swir.Organically rich pond. (P)P. tortus (Lemm.) Skv. *Vernal pool. (P)Strombomona deflandrei (Rool) Defl.Organically rich pond. (P)S. longicauda (Swir.) Defl. •Organically rich pond. (P)rrachelomonas helvetica var. cordiforniisOrganically rich pond. (P) (Roll) Pop. *r. hispida var. austrilica Playf.*Eutrophic lake. (P)r. hispida var. punctata LemmaOrganically rich pond. (P)152Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26http://scholarworks.uark.edu/jaas/vol23/iss1/26153The Freshwater Algae of ArkansasT. intermidia Dang.*Organically rich pond. (P)T. rugulosa Stein*Organicall rich pond. (P)T. scabra Playf. *Organically rich pond. (P)T. sydnensis Playf. *Organically rich ponds and vernal pools. (P)T. volvocina Ehr.Mesotrophic and eutropic lakes. (P)T. volvocinopsis Swir.Mesotrophic and eutrophic lakes and ponds. (P)Order HeteronematalesPeranema inflexum Skuja *Organically rich pasteur pool (P)P. trichophora (Ehr.) Stein *Organically rich pasteur pool. (P)Class CryptophyceaeOrder CryptomonadalesChroomonas acuta Uter. (?) *Organically rich pond. (P)Cryptomonas caudata Schil. *Seepage pool. (M)C. erosa Ehr. *Organically rich ponds and mesotrophic lakes. (P)r. oblonga Playf.*River. (P)C. obovata Skuja *Organically rich pools. (P)C. ovata Ehr.•Mesotrophic lakes. (P)Division CyanophytaClass CyanophyceaeThe nomenclature used within this class is that(1932). 153Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969154Arkansas Academy of Science ProceedingsOrder ChroococcalesAnphanocapsa biformis A. Br. *On limestone seep. (EL)A. grevellei (Hass.) Rab. *River. (P)Chroococcus turgidus (Kutz.) Nag. *River (P)Dactylococcopsis smithii Chod. et Chod. (?) *Eutrophic lake. (P)Gomphosphaera aponina Kutz.River. (P)Merismopedia marsonii Lemm. *Organically rich pond. (P)M. punctata Mey.•Organically rich pond. (P)M. tenussima Lemm.•Organically rich, slow flowering stream. (P)Polycystis aeruginosa Kutz. *Organicaly rich ponds and eutrophic lakes. (P)Order ChamaesiphonalesChamaesiphon incrustans Grun. *On Cladophora sp. in creek. (ET)Order OscillatorialesAphanizomenon flos-aquae (L.) Ralfs *Eutrophic lakes and ponds. (P)Nostoc planctonicum Por. et Tschern. *Organically rich vernal pool. (P)Oscillatoria agardhii Gom. *Organically rich pond. (P)r. amoena Gom.*Seepage pool. (EL)O. chlorina Kutz *Seepage on clay soid. (EL)O. ornata Kutz.*Organically rich pond. (P-EL)O. principees Vauch. *Organically rich pond. (P)154Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26http://scholarworks.uark.edu/jaas/vol23/iss1/26155The Freshwater Algae of Arkansas0. rubescens deCand. *Mesotrophic lake. (P)0. tenuis C. Ag. *Mesotrophic lake. (P)0. tenuis var. natans Gom.*Organically rich vernal pool (P)Division RhodophytaClass RhodophyceaeOrder NemalinionalesAudouinella violacea (Kutz.) HamStream. (EL)LITERATURE CITEDBehre, K., 1956Die Algen besiedlund einiger Seen urn Bremen und Bremerhaven.Ver. Inst. Meersk. Bermmerhaven 4:221-283Hoffman, C. E., 1952Limnological studies in Arkansas II. The effect of IntenseRainfall on the Abundance and Vertical Distribution of Plank-ton in Lake Fort Smith, Arkansas. Ark. Acad. Sci., Proc5:83-89.and D. Causey, 1952Limnological Studies in Arkansas I. Physico-chemical and netPlankton Studies of Lake Fort Smith in its Fourth Year ofImpoundment. Ark. Acad. Sci., Proc. 5:55-72.Huber-Pestalozzi, G., 1955Das Phytoplankton des Susswasser Bd. 16, T. 4 Euglen-ophyceae. E. Schweizerbart'sche Verlag. Stuttgart. 606 pp., 1961Das Phytoplankton des Susswasser Bd. 16, T. 6 Volvocales.E. Schweizerbart'sche Verlag. Stuttgart. 644 pp.Pascher, A., 1939Heterokonten. In L. Rabenhorst, Kryptogamen-Flora Deutsch-lands, Osterreich und der Schweiz. Bd. 11. 1092 pp.Robinson, Jr., A., 1953Comments on the Bacillariophyceae of North Central ArkansasArk. Acad. Sci., Proc. 6:51-52.*155Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26Published by Arkansas Academy of Science, 1969156Arkansas Academy of Science ProceedingsRound, F. E., 1965The Biology of Algae. E. Arnold, Ltd. London, 269 pp.Schiller, J., 1933-5Dinoflagellatae. InL. Rabenhorst, Kryptogamen-Flora Deutsch-land, Osterreich und der Sehweiz. Bd. 10, T. 3(1-2). 579 and617 pp.156Journal of the Arkansas Academy of Science, Vol. 23 [1969], Art. 26http://scholarworks.uark.edu/jaas/vol23/iss1/26

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Freshwater Algae of Arkansas

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