Polysiphonia violacea (Roth) Spreng.

• Region

  North America

• Country

  United States of America

• State/Province

  Rhode Island

• County/Municipio

  Newport Co.

• City/Township

  Newport

• Locality

  Easton's Point, just below low water mark

• Coordinates

  41.4845, -71.2754

• Coordinate Uncertainty (m)

  942.709

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates on shore closest to geogr. center of Easton Point. Measured from selected coordinates to farthest extent of the point to find linear extent (931.14 m). Input information into MaNIS Georef. Calc. to find uncertainty radius.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Phycotheca Boreali-Americana. Collins, Holden, and Setchell.
595. Polysiphonia violacea (Roth) Grev.
Bailey, Amer. Jour., Series 2, Vol. Ill, p. 7,1846.
Harvey, Nereis Bor. Am., part 2, p. 44,1853.
J. G. Agardh, Sp. Alg., V ol. II, p. 988,1863.
Farlow, Report of U. S. Fish Commission for 1871 and 1872, p. 287, 1873;
for 1875, p. 892,1876; Proc. Amer. Acad., Vol. X, p. 361, 1875; N. E.
Marine Algae, p. 173,1881.
Just below low water mark, Easton’s Point, Newport, Rhode Is-
land, Aug. and Sept., 1898.
Mrs. W. C. SIMMONS.
a With cystocarps.
b. With tetraspores.
02223505
02223504