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ZYGNEMATACEAE
PLATE XVII
MOUGEOTIA
Fig. I.—A/, depressa, zygospore and garhetangia from Germany. After
Kiitzing. Figs. 2-3. M. ovalis, gametangia and zygospore, and details of
spore wall. After Wittrock and Nordstedt. Figs. 4-6. M. pectosa, zygo-
spore and aplanospores from Fort Myers, Florida. Figs. 7-8.—A/, disjuncta,
zygospores, one with change of sporangium wall to pectic compound, the
other without. Specimens from Fort Myers, Florida. Figs. 9-10. M.
oedogonioides, zygospores resulting from lateral and scalaritorm conjugation.
Note unique remnants of conjugating tubes. Figs. 11-12.—A/, operculata,
gametangia, zygospore, and details of spore wall from Florida. Figs. 13-
14.—A/, atubulosa, zygospores in pectic-walled sporangia, and details of
spore wall from Java. After Krieger. Figs. 15-17.— A/, cycmeii, zygospores,
and aplanospore, and details of spore wall from Michigan. Fig. 18.—A/.
caimani, part of group of interconjugating filaments from Haiti. Figs. 19-
20. M. transeaui, two forms of zygospores and an aplanospore from Illinois.
Fig. 21. M. poinciana, zygospores and an aplanospore from Fort Myers,
Florida. Differs from the preceding only in having larger dimensions.
Fig. 22. M. seminoleana, zygospore and aplanospore from Fort Myers,
Florida. Fig. 23. M. cherokeana, zygospores and arching gametangia from
Oklahoma. Figs. 24-25. M. pawhuskjxe , gametangia and zygospores, and
spore wall details from Oklahoma.