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, 54-58 ju, 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 chro- 

 matophores, making 3 to 4 turns; conjugation scalariform; tubes formed 

 by both gametangia; fertile cells inflated to 32 /.i; 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 chro- 

 matophores, 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. bichromato- 

 phora). 



