Gigartina volans (C.Agardh) J.Agardh

• Region

  North America

• Country

  United States of America

• State/Province

  California

• County/Municipio

  San Francisco Co.

• City/Township

  San Francisco

• Locality

  Land's End

• Coordinates

  37.7833, -122.502

• Coordinate Uncertainty (m)

  1441.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Land's End. Measured from coord. to farthest extent of the park to find linear extent (1430 m). Input info. into MaNIS Georef. Calc. to find uncert. rad. (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Phycotheca Boreali-Americana. Collins, Holden, aid Setchall.
XXI. Gigartina volans (Ag.) i as.
J. 6. Agardh in C. Agardh, leones Alg. lned., ed. nova, part 2, PI. XVIII,
1846; Sp. Alg., Vol. II, p. 275,1851; Yol. Ill, p. 200,1876.
Farlow, Proc. Amer. Acad., Vol. X, p. 370, 1875; Report of U. S. Fish
Commission for 1875, p. 700,1876
C. L. Anderson, Zoe, Vol. II, p. 223,1881.
Howe, Erythea, Vol. I, p 68, 1893.
McClatchie, Proc. Southern Calif. Acad., Vol. I, p. 357,1897.
De Toni, Syll. Alg., Vol. IV. p. 221,1897.
Sphaerococcus volans Agardh, leones Alg. Ined., part 2, PI. XVIII, 1821.
Mastocarpus volans Kuetzing, Bot. Zeit., Vol. V, p. 24, 1847; Sp. Alg., p.
734, 1849; Tab. Phyc., Vol. XVII, p. 14, PI. XLVIII c, 1867.
a.	Land?s End, San Francisco, California, 1898 & 1899.
With cystocarps.
W.A.SETCHELL.
b.	Dillon?s Beach, Marin County, California, Dec. 11, 1898.
With cystocarps.
W. A. SETCHELL & R. E. GIBBS.
c.	Bather local, in small patches on rocks, where the waves dash in,
Land's End. San Francisco, California, Feb. 1898 & 1899.
With tetraspores.
W. A. SETCHELL.
G. volans differs from the other Californian species of Gigartina with
flattened fronds in having the tetraspores immersed in the substance of the
frond. It is a very distinct species, and may be recognized at once by its
opuntioid habit.
W. A. S.
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