Oscillatoria claricentrosa N.L.Gardner

• Region

  West Indies

• Country

  Puerto Rico

• State/Province

  Fajardo

• Locality

  By the road to the Playa.

• Coordinates

  18.3285, -65.6756

• Coordinate Uncertainty (m)

  8981.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Fajardo. Measured from coord. to farthest extent of the region to find linear ext. (8970 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

DARIUS OGDEN MILLS FUND

FRESHWATER ALGAE OF PORTO RI
COLLECTED BY PROFESSOR N. WILL
Fajardo January 25-28, 1915

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Oscillatoria clari'centrosa sp. nov.

Plate 8, figure 72

Stratum inconspicuous; trichomes relatively straight and
rigid, 2.3-2.5 ,u diam., apices straight or slightly uncinate, acute,
very slightly constricted at the cross-walls; cells up to 11 n long,
3-5 times as long as the diameter, though usually 6-8 (j long;
protoplast with a clear central area, the denser colored portion
free from granules, crowded close to the periphery; cross-walls
indistinct.

Forming a thin stratum on mud in a ditch near Playa, Fa-
jardo, no. 697, type.

This species belongs in the Attenuatae section of Gomont
(Monogr. p. 224) and is closely akin in form to Oscillatoria
longearticulata llansg. and narrower than 0. acuminata Gomont.
It is to be distinguished by its relatively long cells with con-
spicuously clear centers free from granules. It is larger in
diameter than 0. longearticulata and narrower than 0. acumi-
nata.

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72. Oscillatoria claricentrosa

Terminal portion of three filaments.................................... x 1,000

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