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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 /x; 85 chromatophores short, occupying
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; sporangia
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 pyrenoids
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.