Ulothrix subtilis Kütz.

• Region

  North America

• Country

  United States of America

• State/Province

  Massachusetts

• County/Municipio

  Middlesex Co.

• City/Township

  Medford

• Locality

  near clay pits, on moist sandy soil

• Coordinates

  42.4226, -71.1053

• Coordinate Uncertainty (m)

  3681.38

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Can't find clay pits. Located coordinates of geogr. center of Medford. Measured from coord. to farthest extent of the city to find linear extent (3670 m). Used MaNIS Georef. Calculator to find uncertainty (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Phycotheca Boreali-Americana. Collins, Holden, and Setchell.
614: Ulothrix subtilis Kuetz.
Kuetzing, Phyc. Germ., p. 197,1845.
Wolle, F. W, Algae of the U. S., p. 135,1887.
Hormiscia subtilis De Toni, Syll. Alg., Vol. I, p. 159,1889.
a.	On moist sandy soil, near clay pits, Medford, Massachusetts,
June 18, 1892.
b.	On sides oE wooden horse trough, Melrose, Massachusetts, Aug.
22, 1898.
c.	Forming bluish green gelatinous patches in shallow grassy parts
of the western Weweeder Pond, Nantucket, Massachusetts, Aug. 3, 1895.
None of these specimens seem to agree exactly with any of the de-
scribed European forms; but the characters are hand ly distinct enough to
deserve a new form name.
F. S. COLLINS.
F. S. COLLINS.
W. A. SETCHELL.
F. S. C.