Spirogyra gracilis

• Region

  North America

• Country

  United States of America

• State/Province

  Massachusetts

• County/Municipio

  Middlesex Co.

• City/Township

  Melrose

• Locality

  in stream above Cascade

• Coordinates

  42.444, -71.0759

• Coordinate Uncertainty (m)

  651.569

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of approx. geogr. center of The Cascade. Measured from coord. to approx. geogr. center of nearest named place, Wyoming; 1/2ed dist. (640m). Input info into MaNIS Georef. Calc. to find uncert. radius (Undefined Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

C°L(JM8 ia

Phycotheca Boreali"Americana. Collins, Holden, and Setchell.

1418. Spirogyra gracilis (Hass.) Kuetz.

Kuetzing, Sp. Alg., p. 488, 1849.

Petit, Spirogyres des Environs de Paris, p. 15, PL III, figs. 7 & 8,
1880.

Wolle, F. W. Algae of the U. S., p. 211, PI. CXXXIY, figs. 5,
7, 1887.

De Toni, Syll. Alg., Vol. I, p. 759, 1889.

Zygnema gracile Hassall, Brit. F. W. Algae, p. 148, PL XXX,
figs. 5 & 6, 1845.

In stream above Cascade, Melrose, Massachusetts, May 13,
1907, with S. inflata (Vauch.) Kuetz., and S. insignia var. Hantz-
schii (Rab.) Petit.

F. S. COLLINS.

NEW YORK BOTANICAL GARDEN

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