luu MEMOIRS OF THE >.'EW YOKK BOTANICAL GAKDEX 



PLATE 3 



Figure 20. GlueocaiJ^^a .spkacrica 



A group of colonies in various stages of develop- 

 ment X 1,000 



" 27. Gloeocupsa quadrata major 



A group of typical colonies x 1,000 



" 28. Gloeothece inferspersa 



A small group of typical cells and colonies x 1,000 



" 29. Glocothecf cndochromdiicn 



Cells and colonies with black differentiated tegu- 

 ments x 1,000 



" 30. Gloeothece parvuJa 



Two small but typical colonies x 1,000 



" 31. Gloeothece opalothecata 



A group of typical colonics x 1,000 



" 32. Gloeothece prototypa 



A group of typical cells and colonies x 1,000 



" 33. Anacystis nig )-o purpurea 



A group of young, developing colonies on the left 

 and one colony with mature resting cells on the 

 right x500 



" ,34. Anacystis nigroviolacea 



Showing the colonies in various stages of develop- 

 ment and one colony with mature resting cells 

 escaping x 500 



" 3.J. Anacystis cylindracea 



A single typical colony, sho\\ ing typical cells and 

 ample homogeneous tegument x 500 



