96 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



PLATE 1 



Figure 1. Synediocystis primigenia 



A group of cells, showing stages in division x 1,500 



" 2. Synediocystis Willei 



Small group of cells, showing stages in division x 1,500 



" 3. Synediococcus interniedius 



A group of cells actively dividing x 1,000 



" 4. Badylococcopsis arciuita x 1,000 



" 5. Chroothece Willei 



A group of cells in longitudinal view except one 



in end view x 500 



" 6. Merismopedia Willei 



A typical colony x 500 



" 7. Aplianocapsa intertexta 



A small colony x 1,000 



" 8. Aphanotliece opalescens 



A small colony x 1,000 



" 9. Aphanothece Biditeriana major 



A fragment of a colony, showing a portion of the 



surface and interior x 1,000 



10. Aphanothece hacilloidea 



A small colony, showing cells in various stages 



of division _ x 1,000 



" 11. Aphanothece microscopica granulosa 



A few cells of a young colony x 1,000 



" 12. Chroococcus cubicus 



A few normal cells in various stages of division 



forming colonies x 1,000 



