Gelidium pusillum (Stackh.) Le Jol.

• Region

  North America

• Country

  Bermuda

• Locality

  Tucker's Town

• Coordinates

  32.3328, -64.6874

• Coordinate Uncertainty (m)

  417.569

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Tucker's Town. Measured from coord. to farthest extent of the town to find linear ext. (406 m). Used MaNIS Georef. Calculator to find uncertainty (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Collins & Hervey.Algae of Bermuda.Contri-
butions Bermuda Biological Station for
Research, no. 69, page 104, August 1917.
irv
#1
4. G. pusillum (Stack.) Le Jolis, 1863, p. 139; P. B.-A., No: 2182\p J0
Fucus pusillus Stackhouse, 1795, p. 16, PL VI. North Shore, Jan.,
Nov., Tucker?s Town, Feb., Hervey; above and below Flatts Bridge,
April, May, Aug., Collins. Tetraspores in March, April, Nov. Verv
common on pebbles, shells and flat rock bottom in shallow quiftte)
water all about the islands, forming a dense mat, usually not over
one cm. in thickness, the creeping basal part and the lower part of
the upright growth terete, the upper part flat. As we understand
this species, it includes G. pulvinatum (Kiitz.) Thuret, and G. rcpens
Kiitz. Forms corresponding to Kiitzing?s plates of both of these, as
well as to typical G. pusillum, are found in Bermuda material, with
all intermediate forms.
Var. conchicola Piccone & Grunow in Piccone, 1884, p. 316,
P. B.-A., No. 2183, is a reduced form, common on small shells in
shallow water; the upright fronds seldom reach 5 mm. high; they
are mostly flat for their entire length, and only sparingly branched.
But the same form occurs also on stones, and every intermediate can
be found up to plants with erect fronds, 2 cm. high. Forms which
we refer to G. pusillum occasionally occur in which the terete stipe
expands into a flat frond, up to 5 cm. long and 3-5 mm. wide. This
is very different in appearance from the usual form, but it intergrades
so that it and var. conchicola must be regarded as extreme forms of a
very variable species.
NEW YORK BOTANICAL GARDEN
02209517
distributed from the
Herbarium of The New York Botanical Garden
&
Gelidi mpusillum (Stack.) Le Jolla
‹uokerls.....Town,.................Bermuda
...tme ms
Q.T A NIC AL 6AM
mr H-,
1914	A, 3.......Hervey
sP.B.-A 2182a
HITT?*, 1SSS
Żnr rr
Pr-------- to
THE New	. , anical Garl t
BY (V i_. .:mTTON 1922
Phycotheca Boreali-Americana.	Collins, Holden and Setchell.
Algae of Bermuda.
2182. Gelidlum pusillum (Stack.) Le Jolis.
Le Jolis, Liste des algues marines de Cherbourg, p. 139, 1863.
De Toni, Syll. Alg., Vol. IV, p. 147, 1897.
Fucus pusillus Stackhouse, Nereis Britannica, p. 16, Pl. VI,
a, b, c, 1795.
a.	Larger form, Tucker?s Town, Feb. 24, 1915.
A. B. HERVEY.
b.	Small form, Harrington Sound, April, 1912.
F. S. COLLINS.
02209517
02209518