Lophosiphonia saccorhiza Collins & Herv.

• Region

  North America

• Country

  Bermuda

• Locality

  Smith's Bay

• Coordinates

  32.3192, -64.713

• Coordinate Uncertainty (m)

  185.569

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates on shore closest to geogr. center of John Smith's Bay. Measured from coord. to farthest extent of the bay to find linear ext. (174 m). Used MaNIS Georef. Calculator to find uncertainty (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

lophosiphonia Saccorhiza sp. nov. Oollins & Eervey,proc. Am.
Acad. Arte & Sci.53:127.Au 1917.

P. B. - A., ITo • £042. Gellulis pericentralibus 4; fila-
mentis prostratis 50-70 yi diam.»segmentis 1-2 diam.longis;
filaraentis erectis numerosis, ad 2 mm. longis, 25-45 ]i
diam., ad "basin abrupte, apioem versus lordissime attenuatis,
prope apioem folia "bene evoluta sed fugacissima gerentibus;
segmentis 2-3 diam. longis,ad apicem diametro brevioribus;
filamento prostrato ad plantem hospitem rhizoideis numerosis
affixo a parte inferiore filamenti ortis, primo cylindraceis
vel ortu complanatis axis filamenti sensu, mox in saccos ovoid-
eos expansis, ad 800 ji longis, 160 ji diam., inter utriculos
plantae hospitis penetrantes. Tetrasporangiis uniseriatis in
parte superiore filamenti erecti sitis, diametrum filamenti
ad duplo superantibus; cystocarpiis subsphaericis, circa 100
diam., apicibus ramorum proximis, segmentis proxime inferior-
ibus saepe ramulos breves solitarios vel paucos gerentibus.
Antheridiis foliorum evolutione ortis, conico-ovoideis. dolore
roseo; substantia molli. Plate II,figs. 13-14,plate III,f.15-17.

TYPES OF:

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00900345

Pericentral cells 4;prostrate filaments 50-70 u diam.f seg-
ments 1-2 diam.long,erect filaments numerous, up to 2 mm. long,

25-45 p. diam.,contracted abruptly at base, gradually towards apex,
segments 2-3 diam.long, at growing tip shorter than the diam.;
well-developed but very fugacious leaves formed on the upper part;
prostrate filaments attached to the host, by numerous rhizoids
issuing from the lower peridentral cells of the prostrate filament,
one or more from a segment, at first cylindrical in section, or
flattened in a line with the axis of the filament, below expanding
into an ovoid sac, up to 800 p. long, 160 p wide, penetrating be-
tween the utricles of the host. Tetrasporangia in a single series
in the upper part of a filament, up to twice the diameter of the
filament. Cystocarps subspherical, about 100 p. diam.,near end of
erect filament, one or more short branches issuing from the seg-
ments next below. Antheridia developed from leaves, conical-ovoid.
Color rosy red; substance soft.

From the few 4-tubed species of Lophosiphonia this is dis-
tinguished by branching characters, but specially by the great
development of the rhizoids, which show a remarkable adaptation
to its habitat, the fronds of Codium. The rhizoids take the shape
of utricles, of much the same shape and size as those of the host,
but in reversed position. At first a relatively slender cell, cy-
lindrical, or occasionally flattened in a line with the axis of
the filament, as soon as the rhizoid has penetrated between the
stouter parts of the Oodium utricles it expands, and wedges itself
in tightly among the latter. As seen under the microscope, there
is a striking contrast between the rosy color of one set of utricles,

n?£iJieTenree? °i th£	-7Pe in <3°mn8 herbarium

Gibbet Island, March 1913, Hervey; »iso frnm	• - ,

Maroh. Hervey; Tuoker's Town IprU
Stool, Hungry Bay, May, Coilins. "»“.April

No.7456,

NEW YORK BOTANICAL GARDEN

00900346

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