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Philippine Islands; Africa.
ZYGNEMATACEAE
This species has been previously classified as Debarya ajricana G. S.
West, and as M. sphaerocarpa var. varians Transcau.
i8. MouGEOTiA ovALispORA KHcger 1941. Rabenhorst's Krypt-
ogamenfiora. 13 (2), p. 134.
Vegetative cells 37-40/1 x 8o-i2o/>; chromatophores with 8 to 10
scattered pyrenoids; conjugation scalariform; zygospores in the con-
jugating tubes, ovoid to ellipsoid, 39-41
smooth, yellow-brown. (PI. XIV, Fig. 14.)
Germany, Brandenburg, Griinrade.
/^ x 51-59/^; spore wall thick,
19. MouGEOTiA HiRNii Transeau 1934. Trans. Amer. Micros. Soc.
53, p. 218.
Vegetative cells 25-28/1. x 60-1 40 /i.; chromatophores with 4-8 pyre-
noids in a row; conjugation scalariform; zygospores formed wholly in
the conjugating tube, ovoid, 40-48 /x x 43-50 /x; spore wall yellow-brown,
smooth. (PI. XIV, Fig. 13.)
United States: Michigan (Ackley Coll.).
Finland; China (McClure Coll.).
Formerly classified as M. scalaris var. macrospora Him.
20. MouGEOTiA GENUFLEXA (Dillwyn) C. A. Agardh 1824. Systema
Algarum, p. 83.
Vegetative cells 25-38 /a x 50-225/1, often geniculate and attached to
other similar cells, forming extensive nets, sometimes with rhizoidal
branches; conjugation lateral, less frequently scalariform; zygospores
quadrately ovoid to globose, 30-40/1 in diameter; spore wall smooth,
brown. (PI. XIV, Figs. 16-17.)
United States: Minnesota and Wisconsin to Louisiana; eastward to
Massachusetts and Florida.
Generally distributed in Europe; China, Kiangsi; Manchuria; Morocco.
21. MouGEOTiA MACROSPORA (Wollc) dc Toni 1889. Sylloge Algarum.
1, p. 716.
Vegetative cells about 30/i x 180-300/1; conjugation scalariform;
zygospores formed in the conjugating tubes, globose, 55-70/1 in diam-
eter; spore wall smooth. (PI. XIV, Fig. 15.)
United States: Pennsylvania; New Hampshire.
22. MouGEOTiA SUBCRASSA G. S. Wcst 1909. ]our. Linti. Soc. of
London Bot. 39, p. 50.
Vegetative cells 41.5-43/'- x 240-280/1; chromatophore with 15-24
pyrenoids arranged irregularly; gamctangia straight or slightly curved;