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MOUGEOTIA 91
6. MouGEOTiA ELLiPsoiDEA (W. & G. S. Wcst) Czurda 1932. Siiss-
wasserflora Mitteleuropa. 9, p. 66.
Vegetative cells 9.5-1 1.5
/x in diameter; conjugation scalariform;
zygospores formed wholly in the conjugating tube, ellipsoid, 16-26 ij. x
22-28 ju.; spore wall smooth, brown at maturity. (PI. XIII, Fig. 14.)
Burma; Austria.
7. MouGEOTiA vicTORiENSis G. S. Wcst 1909. Jour. Lifjfi. Soc. of
London Bot. 39, p. 51.
Vegetative cells ii-i2At x 1 00-160^1; chromatophores with 2-7
(usually 5-6), pyrenoids in a single, more or less irregular row; con-
jugation scalariform; zygospores formed wholly in the conjugating
tube, globose, 2 1-24 /x in diameter; spore wall smooth. Surrounding the
sporangium a layer of pectic material develops which extends even
beyond the outer sides of the gametangia, 60-63^1 in diameter. (PI. XIII,
Fig. 18.)
Australia, Victoria.
8. MouGEOTiA RECURVA (Hassall) de Toni 1889. Sylloge Algarum.
1, p. 714.
Vegetative cells 12-18/^ x 50-1 80 /a; chromatophores with 4-8 pyre-
noids; conjugation scalariform; zygospores formed wholly in the con-
jugating tube, globose, 22-33 /a ^^ diameter; spore wall brown, smooth;
aplanospores globose, 24-30^1 in diameter, at the bends in geniculate
cells, or cylindric-ovoid, 14-18/i x 28-34 /i., in straight cells. (PI. XIII,
Fig- I3-)
United States: Michigan; Florida.
Maritime Provinces of Canada; British Isles; Germany; Australia;
Puerto Rico; South America; northern India.
In the collection from Florida the spores, although mature, were highly
variable in dimensions.
9. MouGEOTiA ADNATA Iyengar 1932. Rev. Algolog. 6, p. 270,
Fig- 3-
Vegetative cells 15-17 /^ x 1 80-240 ;u, enveloped by a sheath 6-8 /a
thick; chromatophore platelike, with 4-10 pyrenoids in a row; conjuga-
tion lateral and scalariform; zygospores formed in the enlarged con-
jugating tube, which also develops an outer pectic layer; in lateral
conjugation elUpsoid or rarely reniform, 26-32 ju. x 30-38 /i.; in scalar-
iform conjugation globose or dolioform, 3 1-33 m x 35-37 /x; spore wall
brown, smooth. (PI. XIII, Figs. 15-17.)
India, Periyar, on wet rock slopes.