Cosmarium punctulatum Bréb.

  • Kingdom

    Algae

  • Division

    Charophyta

  • Class

    Zygnematophyceae

  • Order

    Zygnematales

  • Family

    Desmidiaceae

  • All Determinations

    Cosmarium punctulatum Bréb.

  • Region

    North America

  • Country

    United States of America

  • State/Province

    Massachusetts

  • County/Municipio

    Middlesex Co.

  • Locality

    Middlesex Fells, Hemlock Pool with various other algae, among submerged moss

  • Coordinates

    42.4524, -71.1015

  • Coordinate Uncertainty (m)

    3481.38

  • Georeferencing Method

    Georeferencing Quick Reference Guide, Version 2012. Can't find Hemlock Pond/Pool. Located coordinates of geogr. center of Middlesex Fells. Measured from coord. to farthest extent of the park to find linear extent (3470 m). Used MaNIS Georef. Calculator to find uncertainty (Bounded Area).

  • Geodetic Datum

    WGS84

  • Distribution

    Map all specimens of this taxon

THE New York botanical garden
By n. l. Britton. 1922

Phycotheca Boreal ¡"Americana.	Collins, Holden and Setchell.

1820. Cosmarium punctulatum Bret.,

Brdbisson, Liste Desm., p. 129, PI. I, fig. 16, 1856.

Wolle, Desm. of the U. S., p. 74, PI. XIII, fig. 4, 1884.

De Toni, Syll. Alg., Vol. I, p. 961, 1889.

W. & G. S. West, Brit. Desm., Vol. Ill, p. 206, PI. LXXIV,
figs, 13, 14, 1908.

Among submerged moss, with various other algae, Hem-
lock Pool, Middlesex Fells, Massachusetts, Sept. 24, 1911.

F. S. COLLINS.

This material contains the typical form of the species,
var. subpunctulatum (Nordst.) Boerg., and a form in which
the granules are very small and scanty.

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