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ZYGNEMATACEAE
PLATE III
Zygnema
Fig. I.—Z. sinense, zygospores and gametangia from Szechwan, China.
After Jao. Figs. 2-3.—Z. globosuni, conjugation pattern and detail of spore
walls from Bohemia. After Czurda. Fig. 4.—Z. adpectitnitum, gametangia
and zygospore from Charleston, Illinois. Fig. 5.—Z. areolatum, gametangia
and zygospores from Smithville, Oklahoma. Fig. 6.—Z. pectinatum, scalar-
iform and lateral conjugation, aplanospore, and zygospores with spore wall
markings, from Cofileen, Illinois. Fig. 7.—Z. excrassum, zygospores and
gametangia from Casey, Illinois. Fic. 8.—Z. neopectinatum , gametangia
and zygospore from Illinois. Figs. 9-10.—Z. giganteiitn, aplanospore. zygo-
spores and parthenospores from Punjab, India. Modified after Randhawa.
Figs. 11-12.—Z. gedeanum, lateral conjugation, zygospore, and partheno-
spores from Java. After Czurda. Figs. 13-14.—Z. czurdae, zygospores after
partial disintegration of the gametangial walls, from Punjab, India. After
Randhawa.