Arthrospira jenneri f. purpurea Collins

• Region

  North America

• Country

  United States of America

• State/Province

  Massachusetts

• County/Municipio

  Middlesex Co.

• City/Township

  Wilmington

• Locality

  Silver Lake, forming a gelatinous floating mass

• Coordinates

  42.5642, -71.1895

• Coordinate Uncertainty (m)

  459.169

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Silver Lake. Measured from coordinates to farthest extent of the lake to find linear extent (447.6 m). Input information into MaNIS Georef. Calc. to find uncertainty radius (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Phycotheca Boreali-Americana. Collins, Holden and Setchell,
1551. ChroocoGGus turgidus var. submarinus Hansg.
Hansgirg, Oesterr. Bot. Zeitschrift, p. 6, 1889.
De Toni, Syll. Alg., Vol. V, p. 13, 1907.
Among Chaetomorpha californica Collins, in shallow rock
pools of salt water, above high water mark, Laguna, California,
IsTov. 27, 1908.
N. L. GARDNER.
Phycotheca Boreali-Americana. Collins, Holden and Setchell.
1552. Arthrospira Jenneri Stiz.
Stizenberger, Hedwigia, Yol. I, p. 82, 1852.
Gomont, Monogr. des Oscill., p. 267, PL VII, fig. 26, 1893.
Setchell, Bull. Torrey Bot. Club, Vol. XXII, p. 430, 1895.
DeToni, Syll. Alg., Vol. V, p. 206, 1907.
Scattered filaments among A. Gomontiana Setchell, and
Oscillatoria species, forming a gelatinous floating mass, Silver
Lake, Wilmington, Massachusetts, Oct. 4, 1908. The filaments,
even while fresh, were of a purple color, and the form may be
worthy of record as forma purpurea, n. f.
F. S. COLLINS.
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