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SPIROGYRA 177
loi. Spirogyra polytaeniata Strasburger 1888. Ueber Kern- und
Zell-theilung. ]ena.
Vegetative cells 150-189/x x 180-240^, with plane end walls; 12 to
14 chromatophores, making .5 turn; conjugation scalariform; tubes
formed by both gametangia; fertile cells cylindric; zygospores ellipsoid,
about 120 /A X 158^1.; median spore wall smooth, brown.
Switzerland, Zurich.
102. Spirogyra jaoensis Randhawa 1938. Proc. Indian Acad. Set.
8, pp. 358-59.
Vegetative cells 44-56/A x 90-125/x, with plane end walls; 4 to 6
chromatophores, making about .5 turn in the cell; conjugation scalar-
iform; tubes formed by both gametangia; fertile cells somewhat in-
flated on the conjugating side; zygospores ovoid, ju, 54-58 x 72-80 ju,;
median spore wall smooth, brown.
India, Fyzabad, November, 1936.
This species differs very little from S. emilianensis (No. 90). It was
named for Chin-Chih Jao, who has contributed not only numerous descrip-
tions of new Zygnemataceae, but excellent drawings of intricate spore wall
structures.
103. Spirogyra baileyi Schmidle 1896. Flora. 82, pp. 302-3, PI. 9,
Fig. 2.
Vegetative cells 20-24 /x ^ 128-200 as with plane end walls; 2 chromatophores,
making 3 to 4 turns; conjugation scalariform; tubes formed
by both gametangia; fertile cells inflated to /.i; 32 zygospores ellipsoid,
28 /x X 48-50/^1; median spore wall smooth. (PI. XXVIII, Fig. 7.)
Australia, Queensland.
104. Spirogyra buchetii Petit 1913. Bull. soe. hot. de Franee.
60, pp. 40-43.
Vegetative cells 44-48 /a x 100-140 ju, with plane end walls; 2 chromatophores,
making 2.5 to 4 turns; conjugation scalariform; tubes
formed by both gametangia; fertile cells shortened and inflated to 51^1;
zygospores ellipsoid with rounded ends, variously placed in the fertile
cells giving the appearance of being polymorphic, 48-51 /x x 72/A; me-
dian spore wall smooth, yellow.
United States: Indiana, Sullivan County (Ben Smith Coll.).
Morocco, Tangier; China, Shantung (Li Coll.).
105. Spirogyra bichromatophora (Randhawa) Transeau 1944.
Ohio Jour. Sci. 44, p. 243. Proc. Indian Acad. Sci. 8,
pp. 353-54, Fig. 48. 1938 (as S. gallica var. bichromatophora).