262 ZYGNEMATACHAF. 



PLATH IX 



Zygnemopsis 



Fig. I. — Z. stephensiae, two zygospores from Cape Colony, South 

 Africa. Figs. 2-3. — Z. iycngarii, zygos{X)res and aplanospores from Fyzabad, 

 India. Drawn from type material. Figs. 4-5. — Z. quadrata, zygospores 

 from Szechwan, China. After Jao. Figs. 6-7. — Z. splnicrospora, zygospores 

 from Fyzabad, India. After Randhawa. Figs. 8-9. — Z. lamellata, face and 

 lateral views of zygospores from India. Drawn from type material. Figs. 10- 

 II. — Z. transeauiana, aplanospores and vegetative cell trom Fyzabad, India. 

 After Randhawa. Figs. 12-15. — ■^- decussatu, vegetative cells, zygospores, 

 parthenospores, and aplanospores from Ilinois. Fig. 16. — Z. spiralis, group 

 of zygospores from Michigan. After Prescott. Fig. 17. — Z. jcrtilis, aplan- 

 ospores from South Africa. After Fritsch and Rich. Figs. 1H-21. — Z. pcc- 

 tinata, variations in chromatophores and aplanospores from Kentani, South 

 Africa. Fig. 22. — Z. hodgettsii, immature a|>lanospores from Stellenhosch, 

 South Africa. After Hodgetts. 



