MOUGEOTIA III 



85. MouGEOTiA QUADRANGULATA Hassall 1843. Ann. and Mag. 



Nat. Hist. 11, p. 434. 



Vegetative cells 8-13 a^ x 50-140/^; chromatophore with 8-16 pyre- 

 noids in a single row; conjugating cells geniculate; conjugation scalar- 

 iform; sporangia dividing both gametangia; zygospores quadrangular 

 with straight sides and truncate corners or rarely with angles retuse, 

 28-40 A^ X 28-40 /a; spore wall colorless, punctate; aplanospores obliquely 

 ovoid, 20-21^1 X 36-44 /u. (PI. XIX, Figs. 19-20.) 



United States: Illinois to Louisiana eastward to Newfoundland; Massa- 

 chusetts; Florida. 



Generally distributed from England to Russia and China; south to 

 North Africa and Madagascar; South America, Chile. 



86. MouGEOTiA PALUDosA G. S. Wcst 1899. ]our. Bot. 37, p. 108, 



PI- 395. Figs. 4-6- 



Vegetative cells 11. 5-13.5 /x x 70-1 85 /x; chromatophores short, occu- 

 pying about one-third the length of the cell, with 4-6 pyrenoids in a 

 single row; fertile cells recurved; conjugation scalariform; sporangia 

 dividing both gametangia; zygospores ovoid to quadrangular-ovoid, 

 angles undulate truncate, 32-28 /x x 44-49 /a; outer wall of zygospores 

 thick, smooth; inner wall smooth, thin. (PI. XIX, Figs. 17-18.) 



England. 



87. MouGEOTiA ASPERA WoronicHin 1923. Notulae Syst. Inst. 



Crypt. Hort. Bot. Petrop. 2, p. 192. 



Vegetative cells 1 3-1 6.5 /x x 78-112^1; conjugation scalariform; spo- 

 rangia dividing both gametangia; zygospores globose, 36-46/* in diam- 

 eter, rarely ovoid, 46/x x 66/j.; spore wall pale brown, punctate. 



Asia Minor, Tiflis; Finland. 



88. MouGEOTiA FRAGiLis (ZcUcr) dc Toni 1889. Sylloge Algarum. 



I (2), p. 721. 



Vegetative cells 17-22/1 x 85-200 /a; conjugation scalariform; zygo- 

 spores quadrangular, 22-28/1 x 22-28/1; spore wall smooth. 

 Burma, Pegu. 



89. MouGEOTiA TENERRiMA G. S. Wcst 1914. Metti. Soc. Ncucha- 



teloise Sci. Nat. 5, p. 1028. 



Vegetative cells 4-5/1 x 11 0-135 /a; chromatophores with 6 pyre- 

 noids in a single row; zygospores unknown; aplanospores oblique- 

 ellipsoid, 12-13 /I X 24-25/1., ends slightly mammillate, wall smooth. (PI. 

 XIX, Figs. 30-31.) 



South America, Colombia. 



