Chaetomorpha minima Collins & Herv.

• Region

  North America

• Country

  Bermuda

• Locality

  Harrington Sound, on Cladophora, Lyngbia etc.

• Coordinates

  32.3376, -64.7294

• Coordinate Uncertainty (m)

  2391.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Harrington Sound. Measured from coordinates to farthest extent of the sound to find linear extent (2380 m). Input information into MaNIS Georef. Calc. to find uncertainty radius (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

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NEW YORK BOTANICAL GARDEN

00967607

i

Phycotheca Boreali-Americana. x. ( Collins, Holden and Setchell.

Algae of Bermuda.

2007. Chaetomorpha minima Collins & Hervey ms.

On Cladophora, Lyngbya etc., Harrington Sound, March,

BA

CO LU MSlA

1914.

THC

the yc

BY N. L

A. B. HERVEY.

Vov- OUti^oï

Chaetomorpha mimima sp. nov.Collins & Eervey.proc
Acad.Arts & Sci.53:41.Au 1917. Pl.l.f.5-7.

Am.

P.B.-A.fHo. 2007. Filamentis, disco affixis;cylindricis
vel plus minus ve clavatis ,10-20 p. diam.,ad nodos interdum
constrietis;cellulis 2-4 diam. longis, membrana crassa
distincte laminata; zoosporis (?) in quavis cellula formatis,
per foramine laterale liberatis.

r

Filaments attached by a disk, cylindrical or more or less
davate ,10-20 )i diam.,nodes sometimes constricted; cells 2-4
diam. long, wall distinctly laminate; zoospores (?) formed in
any cell,escaping by a lateral opening in the wall, On fronds
of Sodium, Cladophora etc.

served
characters
similar to

pre-

The smallest species yet known in this genus; c. californica
Collins, P.B.-A.,ITo.664 was the smallest heretofore known in the
attached state,and its filaments average about twice the diameter
of the present species; as regards length, the contrast is even
more striking, as in 0.californica the fronds reach a length of
a decimeter, while in C.minima 5 mm. is the longest observed.

It was first found growing on the rounded ends of the utricles
of Codium tomentosum, sometimes singly,sometimes many individu-
als close together, Being quite imperceptible to the eye, it
was noticed only in the examination of the Codium material
in formalin, so that nothing can be said as to the
of the supposed zoospores; everything was however
the formation and emission of zoospores in the larger
and better known species of Qhaetomorpha. Emptied cells were
common, sometimes every cell of a filament being fertile, even
the basal cell; in one instance a filament consisted of a single
cell]which had emptied itself through the Small round lateral"
opening. In the form of the cells, thick laminate wall, dense
chromatophore with many pyrenoids, the plant is a microscopic
copy of forms like C.Linum. Rather curiously,it is the only
attached form we find in the islands. The type is in the Collins
herbarium.

Vor

Determined by Harry K. Phinney

'^^rTùaì

COLUMBI;
^LVERStTV;

Phycotheca Boreali-Americana.	Collins, Holden and Setchell.

Algae of Bermuda.

2007. Ghaetomorpha minima Collins & Hervey ms.

On Cladophora, Lyngbya etc., Harrington Sound, March,

1914.

A. B. HERVEY.

ü B JUL

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

riF.y!/.y?.?.l5..B9TANICAL garden

00967608

00967607

00967608