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324
Z^'CNFMATACHAH
PLATE XL
SlROGONllM
Figs. 1-4.—5. sticticun), various types ot conjugalion ami zygospores.
The Hrst three figures based on collection from Mayhew, Mississippi: {a)
two pairs ot equal gametangia, {b) conjugation between pairs of the larger
subdivisions ol the progametangia, (r) zygospore from three gametes
54 /x X 144/1. Alternating pairs of conjugants between long and short
gametangia, from India. After Randhawa. Fig. 5.—5. megasporum, gam-
etangia and zygospore from Szechwan, China. After Jao. Fig. 6. S. pscudo-
floridanum, gametangia and zygospore from Wisconsin, .\fter Prescott.
Fig. 7. S. ventcrsicum, gametangia and zygospore from the Transvaal.
Fig. 8. S. melutiosponim, gametangia and zygospore from India. After
Randhawa. Fig. 9.—5. indicum, zygospore and gametangia from India.
After Singh. Figs, io-ii.— S. hut, vegetative cell, zygospore, and details
of spore wall from Kiangsi, China. After L. C. Li. Figs. 12-13. S. tlli-
noicnsc, early stage in conjugation with pectic ring around adhesion disc,
mature zygospore, and subtending gametangia. On some spores the retic-
ulum is less prominent than in this figure.