Phormidium leptodermum var. capitatum N.L.Gardner

• Region

  West Indies

• Country

  Puerto Rico

• Locality

  Coamo Springs, on rocks in a stream of warm water

• Coordinates

  18.0372, -66.3736

• Coordinate Uncertainty (m)

  154.569

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coord. of geogr. center of Coamo Thermal Hot Springs. Meas. from coord. to farthest extent of the springs to find linear ext. (143 m). Input info. into MaNIS Georef. Calc. to find uncert. radius (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

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THE NEW YORK BOTANICAL GARDEN

NEW YORK	Darius ogden mills fund

BOTANICAL FRESHWATER ALGAE OF PORTO RICO

„ r-. t-k»	COLLECTED BY PROFESSOR N. WILLE X

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Coamo Springs January ^^^1915

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85. Phormidium leptodermum eapitatum

The longer filament above, x 500; H, below,
x 1,000, showing the character of the terminal
cell

85

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Phormidium leptodermum eapitatum var. nov.

Plate 9,.-figure 85

Filaments forming a dense caespitose stratum, long and
more or less flexuous, 6-G.5 p diam. : trichomes pale aeruginous,
5-5.4 m diam., slightly constricted at the dissepiments ; apices
straight, very slightly attenuated; cells quadrate to one-half the
diameter long, homogeneous; cross-walls very thin and obscure;
end cell slightly tapering, blunt; terminal wall thickened; sheath
very thin, smooth, distinct, not diffluent.

Growing on rocks in a stream of warm water, Coamo Springs,
no. 364, type.

The variety di ffers from the species chiefly in the possession
of a thickened end cell wall.

00953601