Oscillatoria tortuosa N.L.Gardner

• Region

  West Indies

• Country

  Puerto Rico

• Locality

  Maricao, on a water pipe, near a stream

• Coordinates

  18.1724, -66.9437

• Coordinate Uncertainty (m)

  11481.5

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Maricao. Measured from coord. to farthest extent of the region to find linear ext. (11470 m). Used MaNIS Georef. Calculator to find uncertainty (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

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Determined by Francis Drouet

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DARIUS OGDEN MILLS FUND

FRESHWATER ALGAE OF PORTO Rl£0
COLLECTED BY PROFESSOR N. WILL
MARICAO	FEBRUARY 12-15, 1915

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Oscillatoria tortuosa sp. nov.

Plate 7, figure 63

Trichomes very tortuous, at times completely circinate, rela-
tively short, 2.5 m diam. ; cells cylindrical, quadrate to one-third
as long as broad, homogeneous to very finely granular, pale
aeruginous ; cross walls inconspicuous, not granular ; 2-4 apical
cells acute-conical, at times slightly uncinate'.

Growing on or within the gelatinous tegument of Aphano-
thece confetta P. Kicht. on a water pipe near a stream by Mari-
cao, no. 1147 a, type.

A species closely related to Oscillatoria articulaia, but is tor-
tuous, attenuate, and at times uncinate.

6 7 8 9 10

The New York
Copyright reserved Botanical Garden

63. Oscillatoria tortuosa

Apical parts of two filaments..

X 1,000

"V-*- FRANCIS DROUET | L YÌ 37

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00953590