Anacystis anomala N.L.Gardner

• Region

  West Indies

• Country

  Puerto Rico

• State/Province

  Fajardo

• Locality

  Juan Martin, on a wall

• Coordinates

  18.3285, -65.6756

• Coordinate Uncertainty (m)

  8981.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Can't find Juan Martin in Fajardo. 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

				
				
				
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NEW YORK
BOTANICAL
CARDEN

THE NEW YORK BOTANICAL GARDEN

DARIUS OGDEN MILLS FUND

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

P3'óLól.

C9l\s ¿U

THE PLANKTONIC FRESHWATER SPECIES OF MICROCYSTIS

Francis Drouet & William A. Daily, 1939

ÍUrt/ . 13f&- Js^Z¿dc*S. Jj f^‘ £ .jJ. <53 ? 7f¿f

Anacystis anomala sp. nov.

Plate 5, figure 50

6 7 8 9 10 The New York
copyright reserved botanical Garden'

Colonies very irregular in shape and size, with a tendency
to being cuboidal with rounded corners in the earlier stages ot‘
development, containing approximately 1000 cells; single, free
cells spherical to subspherical, 2.8-3.2 n diam. with tegument,
cuboidal in the colony and 1.3-2.5 |j diam. without wall, arranged

f

quite definitely in rows in the medium-sized colonies, the colonies
often becoming much lobed when old; tegument thin, smooth,
and hyaline.

Growing in company with other Myxophyceae on a wall, Juan
Martin, Fajardo, no. 732 b, type.

This species is certainly aberrant. It does not conform to
any known genus in all of the stages of its life cycle. In the
young stages, the colonies, up to 8 cells, resemble a typical spe-
cies of Chroococcus. From this time on, the development is not
symmetrical. Certain cells cease to divide temporarily or per-
manently, while others become very active, eventually resulting
in a colony more or less lobed and irregular in form. The divi-
sions proceed in three planes, the cells remain cuboidal, having
thin, hyaline walls and are arranged in rows. In this stage
the colony is not unlike certain species of Pleurocapsa. The
material is in all stages of development and there are no gonidia.
The colonies seem to break up at maturity, freeing the cells
which then become spherical and develop a special wall. Al-
though not a typical Anacystis, it seems to correspond more
nearly to the stage of development in the life x*ycle of that genus
than to any other.

0(Luk^c^,.)

•Dir'• %? 0 (tvCj

Determined by Francis Drouet and William A. Daily

V-^Cck^eJCfi^ KCv£r

Determined by Francis Drouet

Anacystis nnomnla

Showing stages in the development of the colony
from a single cell.................................................................................... x 500

00937819