SPIROGYRA 167 



Germany; Latvia; Yugoslavia; Finland; India, 



In the original collection there is a deposit of brown granules between 

 the outer and median walls. 



62. Spirogyra daedaleoides Czurda 1932. Siisswasserflora Mittel- 



europa. 9, pp. 180-81. Skuja. Acta Horti Bot. Univ. Lat- 

 viensis. 4, p. 39. 1929. 



Vegetative cells 30-44 ju x 65-240 /a, with plane end walls; i chro- 

 matophore, making 2 to 8 turns; conjugation scalariform and lateral; 

 tubes formed by both gametangia; fertile cells enlarged or slightly 

 inflated (-50 /x); zygospores ellipsoid, 30-46 /x x 46-90 ju; median spore 

 wall brown, with prominent irregular reticulate ridges. (PI. XXV, 

 Figs. 13-15.) 



United States: Wisconsin (Prescott Coll.); Illinois; Ohio. 



Latvia, Saaremaa. 



63. Spirogyra australensis Mobius 1895. In Bailey, Queensland 



Flora. Dept. of Agric. Bot. Bull. 1, p. 34, PI. 9, Fig. i. 



Vegetative cells about 50 m x T00-150M, with plane end walls; i 

 chromatophore, making 2.5 to 3 turns; conjugation scalariform; tubes 

 formed by both gametangia; fertile cells cylindric or enlarged; zygo- 

 spores elhpsoid, 40-45^1 X 74^7 i^; median spore wall yellowish-brown, 

 finely verrucose. (PI. XLI, Fig. 12.) 



Australia, Queensland. 



Distinguished from S. tuberculata Lagerheim by the larger dimensions 

 throughout and by the cylindric or enlarged fertile cells; from S. daedalea 

 Lagerheim by the verrucose median spore wall. 



64. Spirogyra labyrinthica Transeau 1934. Ohio Jour. Sci. 34, 



p. 420. {S. daedalea var. major Him 1913) in Borge, 

 Zygnemales. Siisswasserflora Deutschland. 9, p. 27. 

 Vegetative cells 50-63 /x x 150-400 m, with plane end walls; i chro- 

 matophore; conjugation scalariform; tubes formed by both gametangia; 

 fertile cells cylindric or enlarged; zygospores ellipsoid, 43-58 ju. x 

 80-118 /x; median spore wall brown, distinctly reticulate. 

 Germany, Wiirzburg. 



SPECIES WITH PLANE END WALLS 

 TWO OR MORE CHROMATOPHORES 



65. Spirogyra maravillosa Transeau 1938. Amer. ]our. Bot. 25, 



p. 525. 

 Vegetative cells 2^-2gix x 108-260 /x, with plane end walls; 2 or 3 

 chromatophores, making 2 to 5 turns in the cell; conjugation unknown; 



