Liagora elongata Zanardini

• Region

  North America

• Country

  Bermuda

• Locality

  shore of Cooper's Island, below low water mark

• Coordinates

  32.3536, -64.66

• Coordinate Uncertainty (m)

  1071.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Coopers Island. Measured from coord. to farthest extent of the island to find linear ext. (1060 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 99, August 1917.
2. L. elongata Zanardini, 1851, p. 35; 1858, p. 274, PI. VI, fig. I; L y 7
Bdrgesen, 1915, p. 67, figs. 67-70; P. B.-A., No. 2088; L. corymbosa
J. G. Agardh, 1896, p. 104. Kemp, July, unnamed specimen in herb.;
Miss Wilkinson; Gates Bay, Buildings Bay, March, St. David?s
Island, May, Hervey; Cooper?s Island, Aug., Collins. Cystocarps
in March. Not as variable as other species of the genus, arid usually
recognized easily by the light purple-brown color, the light and loose
calcification, and the long, rather distantly dichotomous fronds, of
nearly uniform diameter. L. corymbosa, according to J. G. Agardh,
1896, p. 104, ?Hab. ad littora Floridae et insulas Bermudas.? Speci-
mens agreeing fairly well with Agardh?s description were collected at
Castle Harbor by Wadsworth, March, 1890; at Tobacco Bay, March
11, 1914, Hervey; but it is impossible to separate them from L.
elongala. As to characters derived from internal structure used by
Agardh in his treatment of the genus, 1. c., we have not been able to
apply them, as we find them inconstant. He divides Liagora into
two subgenera, Euliagora and Goralia, the former with an inner layer
~&34.	COLLINS AND HEBVEY.
of longitudinal filaments, subdistant, large and small intermixed, the
outer usually small, the fascicles of the cortical layer free from each
other except as united by the general gelatinous coating. In Goralia
the larger filaments of the inner layer are densely packed, the smaller
being on the surface only, the fascicles of the cortical layer adherent
and confluent. L. pvlverulenta is placed in Euliagora, L. valida in
Goralia; but in both species as they occur in Bermuda we have found
large central filaments branching and producing smaller filaments,
?With no definite position in the central strand; generally the cortical
fascicles are borne on the smaller filaments of the central strand,
but not infrequently on the larger ones. The density of the cortical
fascicles and their mutual adhesion or freedom seem to depend largely
on age or activity of growth; they often vary much in the same in-
dividual. f ţ i 1
Phycotheca Boreali-Americana.	Collins, Holden and Setchell.
Algae of Bermuda. The f. r Collin'S
2088. Liagora elongatf^an.
Zanardini, Flora, p. 35, 1851; PI. Mar. Rubr., p. 66, PI. Ill,
fig. 1, 1858.
De Toni, Syll. Alg., Vol. IV, p. 94, 1897.
L. Cheyneana Harvey, Trans. R. I. Acad., Vol. XXII, p. 552,
1855.
Below low water mark, shore of Cooper?s Island, Aug. 2,
1913.
F. S. COLLINS.
The same species, from Florida, was distributed as P.
B.-A., No. 284.
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