Vaucheria discoidea Taft

• Region

  North America

• Country

  United States of America

• State/Province

  Oklahoma

• County/Municipio

  Ottawa Co.

• City/Township

  Miami

• Coordinates

  36.8745, -94.8775

• Coordinate Uncertainty (m)

  6603

• Georeferencing Method

  GEOLocate Web Application. Used the GEOLocate Web Application to georeference to the city center.

• Distribution

  Map all specimens of this taxon

NEW YORK
BQTANICAk

Separately printed, without change of paging from Bulletin of the Torrey
O/LRDE't-.'	Botanical Club 64: SS7. November, 1937.

Vàutnêhl A
Mi sco I c(e&

/ViAnw OAU,
C.E.T*it

new york
botanical,
garden

A new species of Vaucheria1

Clarence E. Taft
Vaucheria discoidea sp. nov.

Oogoniis plerumque 8, forma variantibus ab ovoidea ad oblongam-
ovoideam, obliquis, stipitatis circum peripheriam expansionis discoideae
brevium ramorum lateralium; oosporis eadem forma ac oogoniis, et com-
plentibus oogonia; membrana coriis 2; antheridio 1, circinato.

Filaments 110-170/x diam.; oogonia six to sixteen, normally eight,
ovoid to oblong-ovoid, more or less oblique, stipitate about the periphery

of a disc-like expansion of the short lateral branches, 64-90/¿X 78—92m ; disc
sometimes terminal on the main filament; oospores the same shape as
the oogonium and completely filling it, 62-90^X78-90^, membrane of
two layers, the outer thick and smooth, the inner thin and wrinkled;
antheridium one, rarely two, circinate, on a pedicel above the center of
the disc, 34-44/x diam. Floating in quiet water. Miami, Oklahoma. The
important diagnostic character of this species is the disc which bears the
unusually numerous oogonia.

1 Paper from the Department of Botany, Ohio State University. No. 382

557

NEW YORK BOTANICAL GARDEN

Vaucheria discoidea sp. nov. C. 3* i’aft. Torrey Bull.
Vol. 64: p.557. Kovember, 1937.

Oogoniis plerumque 8, forma variantibus ab ovoidea
ad oblongamovoideam, obliquis, stipitatis circum peri-
pheriam expansionis aiscoidece brevium ramorum later-
alium; oosporis eadem forma ac oogoniis, et coaplenti-
bus oogonia; membrana coriis 2; antheridio 1, circinato.

Filaments 110-170 u diam.; oogonia six to sixteen,
normally eight, ovoid to oblong-ovoid, more or less
oblique, stipitate about the periphery of a disc-like
expansion of the short lateral branches, 64-90 ux78-92 u;
disc sometimes terminal on the main filament; oospores the
same shape as the oogonium and completely filling it,

62-90 ux78-90 u, membrane of two layers, the outer thick
and smooth, the inner thin and wrinkled; antheridium one,
rarely two, circinate, on a pedicel tbove the center ox
the aisc, 24-44 u diam. Floating in quiet water. Miami,
Oklahoma. ffhe important diagnostic character of this
species is the disc which bears the unusually numerous
oogonia.

1--Paper from the Department of -Botany, Ohio State Univ-
ersity. To. 582.

00887602