Hypnea musciformis (Wulfen) J.V.Lamour.

• Region

  North America

• Country

  Bermuda

• Locality

  Building's Bay

• Coordinates

  32.3806, -64.6652

• Coordinate Uncertainty (m)

  60.199

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coord. on shore closest to geogr. center of Building Bay. Meas. from coord. to farthest extent of bay to find lin. ext. (48.63 m). Input info. into MaNIS Geo. Calc. to find uncert. radius.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

EF. S. COLLINS HERBARIUM
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02214947
Collins & Hervey.Algae of Bermuda. Contri-
butions Bermuda Biological Station for
Research, no. 69, page 112, August 1917.
V
COLLINS AND HERVEY.
1. H/iiusciFORMis (Wulf.) Lamouroux, 1813, p. 43; Hauck,Ż®MX,
1885, p. 188, fig. 81; P. B.-A., No. 2185; Fucus musdformis Wulfen
in Jacquin, 1789, p. 154, PI. XIV, fig. 3. Rein; Kemp; Miss
Peniston; Dingle Bay, Bailey?s Bay, Jan., St. David?s Island, Feb.,
Grasmere, March, Buildings Bay, Heron Bay, April, Hervey;
Hungry Bay, April, Cooper?s Island, Aug., Collins. Generally dis-
tributed; the well developed plants with long, virgate branches,
beset with short ramuli, and with tips hooked, are not to be mis-
taken for anything else, but young and stunted forms are hard to
distinguish from other species of the genus.
Wulfen?s type was from Trieste, where he found the plant growing
on crabs for sale in the fish market. His plate is excellent, and shows
a slender form with filiform ramuli, often with constricted bases. We
have seen similar plants from the Mediterranean and the Adriatic,
and on the American shore from Cape Cod to Florida and the West
Indies. A form different in appearance has been distributed by
Bornet, collected at Biarritz; it is stouter, the ramuli shorter and
more patent, and mostly with distinctly wider base, in dried specimens
often like rose thorns; hooked tips are very rare in this form, common
in the other. This form we have seen from various parts of the At-
latic coast of France, and on the American coast from Beaufort,
N. C., to Florida and the West Indies. The two extreme forms are
distinct in appearance, though less characteristic forms can be found.
Sterile plants can be found in both, but as far as we have observed,
cystocarpic plants usually have all the ramuli of the thorn-like type,
always some ramuli of this form; while tetrasporic plants have the
filiform ramuli with base ultimately constricted. The appearance
of the two types is so different that in Agardh?s treatment of the genus,
1851, p. 441, the former would come under Sect. I, Virgatae, ? ramulis
adultioribus basi constrictis,? the other, p. 446, Sect. Spinuligerae,
?ramulis subulatis, a basi latiore acuminatis.? Both forms occur in
Bermuda.
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