Download PDF

3o6 ZYGNEMATACEAE
PLATE XXXI
Spikogyra
Figs. 1-2.—5. cchinata, zygospores, gamclangia, and details of spore
wall from Montgomery, Iowa. After Blum. Figs. 3-5. S. reinhardii, veg-
etative cell, gametangia, and spore wall patterns, from Brazil. After Borge.
Fig. 6. S. hunanensis, chromatophores, gametangia, and zygospore from
China. After Jao. Fig. 7. S. discoidea, vegetative cell, gametangia, and
zygospores from Cape Town, South Africa. Fig. 8. S. pellucida, gam-
etangia, and two views of zygospore from England. After West. Fig. 9.—5.
sphaerospora, gametangia, conjugating tubes, and zygospores from Finland.
After Hirn. Fig. id.— S. sinensis, gametangia and zygospore from Hang-
chow, China. After L. C. Li. Figs. n-13. S. colligata, twisted filament,
end walls of cells, gametangia, and zygospores from England. Alter
Hodgetts. Figs. 14-15. S. majuscula, zygospores and an aplanospore from
Illinois. Fig. 16. S. glabra, gametangia and zygospores from V'ienna,
Austria. After Czurda. Figs. 17-18.—5. bellis, gametangia, zygospore, and
spore wall details. After Czurda.