Endospora rubra N.L.Gardner

• Region

  West Indies

• Country

  Puerto Rico

• Locality

  on old logs north of Mayaguez

• Coordinates

  18.2371, -67.1403

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

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THE NEW YORK BOTANICAL GARDEN

DARIUS OGDEN MILLS FUND

FRESHWATER ALGAE OF PORTO RICO
COLLECTED BY PROFESSOR N. WILLE
Mayaguez February 10-11, 1915

No. ItP.P <_

Si K'., ^ciK
: jTAMICAI,
CARDEN

WÊrtt'YORK

BOTANICAL

GARE) EN

cell in the colony, and in neither is there such a definite membra-
naceous wall separating the protoplasts. Another method of re-
production would have to be added to the Cliamaesiphonaceous
genus Pleurocapsa in addition to its schizogenous method of pro-
ducing gonidia, and likewise the Cliroococcaceous genus Chroo-
coccus would have to he emended to incluude such forms produc-
ing specialized resting cells. It resembles the typical species in
the genus Anacystis in having a definite life cycle, at the end of
which all of , the cells of the colony are simultaneously changed
into resting spores, the so-called rejuvenescent period. It dif-
fers from Anacystis in that the cell walls are membranaceous
and adhere hy their entire surface until maturity, instead of be-
ing cartilaginous, mucilaginous, or gelatinous, as in Anacystis,
such walls expanding more or less and permitting the proto-
plasts to migrate from each other to variable and considerable
distances.

THE NEW YORK BOTANICAL GARDEN

DARIUS OGDEN MILLS FUND

FRESH-WATER ALGAE OF PORTO RICO
COLLECTED BY PROFESSOR N. WILLE
COAMO SPRINGS	JANUARY ^¿^1915

’XJttkV Yu
BOTANICA.

garden

Determined by Francis Drouet and William A. Daily

Tfrw il (i <* I Mir it t'uh ')*/i

‘X

Determined by Francis Drouet

Determined by Francis Drouet

Endospora rubra

colonies in various stages of

IK

A group of cells and
development ..................

x 500

THE NEW YORK BOTANICAL GARDEN

DARIUS OGDEN MILLS FUND

FRESHWATER ALGAE OF PORTO RICO
COLLECTED BY PROFESSOR N. WILLE
Near coamo Springs march 21, 1915

BOTA

No

2L Ÿ- f&fr- X“*' 31 /ÏA1.

ENDOSPORA gen. nov.

Cells dividing in three planes, approximately perpendicular
to each other, resulting in cuboidal to more or less spherical
colonies; cells more or less angular, with membranaceous walls;
all cells in the colony at maturity producing resting spores by
thickening on the inside of the original separating walls, the
spores being liberated by the dissolution of the colonial wall.
Type species, Endospora rubra.

The genus possesses a combination of characters not found
in any other genus of the Chroococcaceae. The combination