Bachuiann, Beitrag zur Kenntuis der Schwebeflora der Schweizerseen. 199 



ns: Fragilaria crotonensis Kitton. 

 Cyclotella comta Ehr. 

 Cymatopleura elliptica W. Sm. 

 Dinobryon stipitatum Stein 

 Anabaena circinalis Rabh. 

 Cosmariura scenedesnius Delp. 

 v: Syneclra capitata Ehrb. 



Synedra clelicatissima W. Sin. 

 Surirella biseriata Br6b. 



12. B 



Chodat. 



Ceratium hirundinella 

 Cyclotella comta var. radiosa 

 Cyclotella opercnlata 

 Cyclotella melosiroides 

 Syneclra ulna var. delicatissima 

 Mallomonas acaroides 

 Sphnerocystis Schroeteri 

 Fragilaria capuzina 



Eigener Befuncl. 

 h: Ceratium hirundinella 0. F. M. 

 Asterionella gracillima Heib. 



Pleurosignia attenuatum W. Sm. 

 Carnpylodiscus hibernicus Ehr. 

 Pandorina morum Bory 

 Sphaerocystis Schroeteri Chod. 

 Dinobryon cylindricum Imh. 

 Cyclotella catenata Brun. 

 Cyclotella melosiroides Kirchner 

 Cyclotella stelligera Cleve. 



leuzersee. 



ns : Dinobryon divergens Imh. 

 Fragilaria crotonensis Kitt. 

 Peridinium ciuctum Ehrb. 

 v: Tabellaria fenestrata Ktz. 

 Cyclotella 



Campylodiscus Noricus Ehrb. 

 Synedra Ulna Ehrb. 

 Pleurosigrna attenuatum W. Sm. 

 Oscillatoria rubescens D. C. 

 Gomphosphaeria lacustris Chod. 

 Sphaerocystis Schroeteri Chod. 



13. Thuuersee. 



Chodat. 



Ceratium hirundinella 

 Ceratium cornutuni 

 Glenodinium pusillum 

 Dinobryou cylindricum 

 Sphaerocystis Schroeteri 

 Oocystis lacustris 

 Cyclotella comta var. radiosa 

 Cyclotella comta var. cornensis 

 Mallomonas acaroides 

 Cyclotella operculata 

 Botryococcus Braunii 

 Fragilaria crotonensis 



Eigener Befund. 



d: Asteriouella gracillima Heib. 



h : Ceratium hirundinella 0. F. Miiller 



Cyclotella bodanica f. lemanica 

 ns: Sphaerocystis Schroeteri Chod. 



Synedra ulna var. splendens 

 v: Fragilaria crotonensis Kitt. 



Oscillatoria sp. 



Peridinium cinctum Ehrb. 



Synedra delicatissima W. Sm. 



Cyclotella melosiroides Kirchner 



Cyclotella comta Ehrb. 



Chodat. 



Vorherrschend : 

 Oscillatoria rubescens 

 Asterionella gracillima 

 Mallomonas acaroides 



Beobachtete Arten: 

 Gomphosphaeria lacustris 

 Oscillatoria rubescens 

 Anabaena flos aquae 



14. Murtnersee. 



Stichogloea olivacea var. sphaerica 

 Chroococcus miuutus var. lacustris 

 Sphaerocystis Schroeteri 

 Ceratium hirundinella 

 Botryococcus Braunii 

 Peridinium tabulation) 

 Melosira orichalcea 

 Melosira arenaria 

 Melosira varians 



