Polysiphonia gorgoniae Harv.

• Region

  North America

• Country

  United States of America

• State/Province

  Florida

• County/Municipio

  Monroe Co.

• City/Township

  Key West

• Coordinates

  24.5591, -81.7816

• Coordinate Uncertainty (m)

  3481.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Key West. Measured from coord. to farthest extent of the key to find linear extent (3470 m). Used MaNIS Georef. Calculator to find uncertainty (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Polysiphonia Gorgonlae Earv. Her. Bor.-Am. 2: 39. pi. 18 G. 1853.

#ilaments subsolitary, short (an inch high), flaccid, flabella-
tely branched, irregularly dichotomous below, alternately decompound above,
attenuated, all the divisions rather patent; ramuli of unequal length (not
fastigiate); internodes near the base very short, in the larger divisions
once and half as long as broad, in the smaller about twice as long as broad,
four tubed; dissepiments pellucid; conceptacles globose, on short stalks,
abundant.

Hab. Parasitical on various corale. Key West, W. E. E. (25)

Dr. Blodgett, 40. (v. s. in Eerb. T. C. D.)

Filaments rising from discoid bases, scattered, rarely somewhat
tufted, an inch high, subsetaceous below, rapidly diminishing in thick-
ness upwards, forking at two or three lines from the base, and afterwards
twice or thrice forked, the upper divisions irregularly multifid and atten-
uated to a byssoid fineness. All the divisions are patent and the bran-
ches open out like a fan in water. The dissepiments are pellucid in all
parts. The internodes four-tubed, and four-angled; those in the lower part
of the stem shortern than their breadth, of the branches once and half to
twice as long as broad, in the ultimate ramuli very short. Conceptacles,
which are plentifully borne on sane specimens, globose, but depressed ver-
tically or oblate, very full of spores, on short pedicels of the lesser
branches or subsessile. Colour a pale ochrey brown, darker towards the tips.
Substance soft and flaccid. It adheres to paper in drying. This is a very
pretty little species, distinct from any of the North American ones. I
found it on the purple, whip-like Gorgonia so common at Key West.

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