Bachmann, Beitrag zur Kenutnia der Schwebeflora der Schweizerseeu. 20 L 



Pleurosigma acuniiuatum Grim. 

 Tabellaria flocculosa Ktz. 

 Diatonia vulgare Bory 

 Surirella biseriata Breb. 

 Cyinbella lanceolata Ehrb. 



16. Genfersee. 



Cymbella aniphicephala Naeg. 

 Epithemia gibba Ktz. 

 Melosira crenulata Ktz. 

 Synedra capitata Ehrb. 



Chodat. 



Botryococcus Braunii 

 Oocystis lacustris 

 Sphaerocystis Schroeteri 

 Nephrocytium Aghardianum 

 Dactylococcus lacustris 

 Gonatozygon Ralfsii 

 Closterium gracile 

 Closteriuin aciculare 

 Mougeotia gracillirua 

 Gonatozygon Brebissonii 

 Hyalotheca dissiliens 

 Raphidium Braunii 

 Stichogloea olivacea 

 Dinobryon divergens 

 Dinobryon cylindricum 

 Dinobryon stipitatum v. lacustris 

 Ceratium niacroceras 

 Peridinium tabulatum 

 Peridinium acuminatum 

 Glenodinium pusilhun 

 Gymnodinium fuscum 

 Asteriouella gracillinia 

 Cyclotella comta 

 Cymatopleura elliptica 

 Fragilaria crotonensis 

 Tabellaria flocculosa 

 Synedra Ulna v. longissiina 

 Anabaena flos aquae 



17. Com 



Eigener Befund. 

 d: Fragilaria crotonensis Kitton. 

 h: Ceratium hirundinella 0. F. Miiller 



Dictiosphaeriuni puk-helhmi 

 ns: Dinobryon stipitatum Stein 



Cyclotella comta var. radiosa Grun. 

 Asterionella gracillinia Heib. 

 Sphaerocystis Schroeteri Chod. 



Merismopedia elegans 

 Oscillaria tenuissima 

 Coelosphaeriurn 



Eigene r Befund. 



d: Fragilaria crotonensis Kitton 

 h: Cyclotella bodanica var. lemanica 

 Miiller 



Cyclotella melosiroides Kirchner 



Cyclotella catenata Brun. 



Botryococcus Braunii Ktz. 



Anabaena circinalis Rabh. 



Ceratium hirundinella 0. F. Miiller 

 us: Asterionella gracillima Heiberg 



Surirella elegans Ehr. 



Cymatopleura Solea W. Sm. 



Cymatopleura elliptica Breb. 



Campylodiscus hibernicus var.Nori- 

 cus Ehr. 



Navicula major KUtz. 



Pleurosigma acuminatum Grun. 

 v: Peridinium cinctum Ehrb. 



Dinobryon stipitatum Stein 



Merismopedia glauca Naeg. 



Merismopedia violacea Klitz. 



Sphaerocystis Schroeteri Chodat 



Nitzschia sigmoidea W. Sm. 



Synedra ulna Ehrb. 



ersee. 



Eudorina elegans Ehrb. 

 Anabaena circinalis Rabh. 

 v: Gomphosphaeria lacustris Chod. 

 Clathrocystis aeruginosa Henfr. 

 Dinobryon divergens Inih. 

 Synedra delicatissiina W. Sm. 

 Fragilaria capuzina Desm. 



Chodat. 



Anabaena circinalis 

 Orillatoscia prolifica 



18. Luganersee. 



Gomphosphaeria lacustris 

 Botryococcus Braunii 

 Chroococcus minutus 



