Xanthidium armatum

• Region

  North America

• Country

  United States of America

• State/Province

  Massachusetts

• County/Municipio

  Barnstable Co.

• City/Township

  Eastham

• Locality

  in small pond nearly dried up, in squeezings of submerged Sphagnum

• Coordinates

  41.8396, -69.9762

• Coordinate Uncertainty (m)

  5141.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Can't find pond. Located coordinates of geogr. center of Eastham. Measured from coord. to farthest extent of the town to find linear extent (5130 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 Ù Setchell.

1661, Xantlridium armatum Rab.

Rabenhorst in Ralfs, Brit. Desm., p. 112, PI. XVIII, 1848.
Wood, F. W. Algae of the U. S., p. 156, PI. XIII, fig. 17, 1873.
Wolle, Desmids of the U. S., p. 92, PI. XXI, figs. 1-4, 1884.

De Toni, Syll. Alg., Vol. I, p. 916, 1889.

In squeezings of submerged Sphagnum, in small pond nearly
dried up, Eastham, Massachusetts, July 4, 1910.

With zygospores.

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