Zygnema chalybeospermum

• Region

  North America

• Country

  Canada

• State/Province

  British Columbia

• Locality

  Vancouver Island, Strait of Juan de Fuca, Baird Point, in waterfall in creek

• Coordinates

  48.4213, -124.041

• Coordinate Uncertainty (m)

  54801.6

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Couldn't find Point. Found coordinates of midpt. coast Van. Is. along Fuca Strait by Measured btw furthest pts; 1/2 dist., chose closest coord. on shore. Meas. from coord. - farth. ext. of segment = linear ext. (54790m). Put info in MaNIS Georef.Calc. =uncert. rad.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

6 7 8 910 _ . T v

The New York

copyright reserved botanical Garden

Josephine E. Tilden. American Algse.

392. Zygnema chalybeospermum Hansg. in Hedwigia. 257, 1888.

Vegetative cells 25 mie. in diameter, 1-2.5 times as long as broad; fruct-
iferous cells no shorter than vegetative, ventricose on one side (appar-
ently the one from which the conjugating tube extended), not so on the
other; zygote globose, 22-25 mic. in diameter, with smooth median mem-
brane; membrane of cells very thin and delicate.

In waterfall in creek.

Baird point, Strait of Juan de Fuca, Vancouver island, British Columbia.

J. E. T. 4 Au 1898.

The plant does not agree satisfactorily with the above species, but the
smooth median membrane of the zygote and the apparently scalariform
conjunction of the filaments bring it nearer this than any other in the
section. Some of the more mature zygotes show a decided bluish tint
in the membrane, but in the younger ones this is not apparent. It agrees
well in habitat.

S9Z