Bangia maxima N.L.Gardner

• Region

  North America

• Country

  United States of America

• State/Province

  California

• County/Municipio

  Marin Co.

• City/Township

  Bolinas

• Coordinates

  37.9094, -122.686

• Coordinate Uncertainty (m)

  2119

• 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 BOTANICAL GARDEN

ALGAE DISTRIBUTED FROM THE
HERBARIUM OF THE UNIVERSITY OF CALIFORNIA

216. Bangia maxima Gardner

Bolinas, Marin County, California.
Co-type.

N. L. Gardner, No. 4581. May 1920.

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Bangia maxima 'Sard .sp .nov.

Univ. California pubi.Bot.13:235.28 P 1927.

Fronds attached by a basal disk at first, later,
in addition, by intramatrical rhizoids springing from
50 to 70 cel^s, cylindrical and solid in the juvenile
state, becoming irregularly clavate and hollow in the
terminal mature parts, 15-20 cm.( up to 35 cm.) high,

60-70 p. (up to 100 yi) diam. in the monosiphonous basal
part, up to 6 mm. diameter at the apices; cells purple
in color, 3-5 times shorter than their diameter in the
monosiphonoiTS parts, with thin, opalescent cell walls
in the older parts, the outer walls common to all of
the cells 15-25 u thick; antheridial membrane surround-
ing the cavity up to 100 u thick; antheridial groups
complex and very variable in shape and size, narrow
or wider and cylindrical or conical, tapering toward
the interior.

Growing on boulders in the middle littoral belt
at the mouth of Bolinas Bay, Marin County, California.
Type, Gardner, no.4581(Herb. Univ.Calif, no. 284058).

This is the %largest species of Bangia that has
been discovered. It has been found but once,and then
in great abundance, in the above mentioned habitat.

I have searched in vain in the region in the immediate
vicinity of the type locality but no trace of other
specimens has been located and the rocks upon which the
type was found have since been completely covered many
feet deep by the shifting sand. It is closely related*
to B. vermicularis Harvey. The color, the shape of the
vegetative cells below, and the abundance of intramatrical
rhizoids resemble those characters in Harvey* s species.

The plants, however, are not so much contorted as in that
species and are very much larger. In the outer cavernous
portion, up to 6 mm.in diameter, the cavity is surrounded
by a membrane wMch in antheridial fruit is about 100
in diameter.

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