Sargassum lapazeanum Setch. & N.L.Gardner

• Region

  North America

• Country

  Mexico

• State/Province

  Baja California

• Locality

  La Paz, cast ashore

• Coordinates

  24.1163, -110.302

• Coordinate Uncertainty (m)

  7831.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of La Paz. Measured from coord. to farthest extent of the city to find linear extent (7820 m). Input info. into MaNIS Georef. Calc. to find uncert. rad. (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Algae distributed from the Herbarium of the
University of California

Sargassum lapazeanum 3. and G-.

NEW YORK
BOTANICAL

GARDEH

IORK

ilCAL

DEN

La Paz, Lower
Mrs. Daisy R.

Co-type

California

Mar chant.

No. 21

TYPE OF:

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&uf. /W?Sei M H'L'

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f

Sargassum lapazeanum Setchell & Gardner, sp. nov.
Proc.Calif.Acad.Sci.IV.12: 733. pi.20. f.74. 13 My 1924.

Fronds 4.5-6 dm. high, arising from a solid
parenchymatous disk; stipe 1.5 cm. long; primary
"branches 5-7 terete, smooth, giving rise to numer-
ous long, slender, secondary branches; leaves 0.5-
1.5 cm. long, asymmetrical, widest towards the
apices, with very short petioles, the basal half
of the upper margin smooth and concave, the re-
mainder of the blade sharply dentate, midrib in-
conspicuous, cryptostomata abundant and conspicu-
ous ; vesicles scattered among the receptacles,
ellipsoidal, 1-2 mm. long, transformed from the
base of a leaf, mostly crowned by the remnants
of the blade; receptacles 4-7 mm. long, 2-3 times
forked, branches strict, spinulose, intermixed
with leaves and receptacles forming a heteroclyte
cyme.

Cast ashore, La Paz, Lower California.
Type, Marchant, no. 21, May.

NEW YORK
BOTANICAL
&’RDEM

Setchell, W. A. & Gardner, N. L. Melanophyceae
Univ. Calif. Publ. B0t. 8: %14, 1925

? 7

							
0 1	2	3	4	5	6 7 8	9 10	The New York
cm					copyright reserved		Botanical Garden

S. and G.

Fronds 4.5-6 dm. high, arising from a solid parenchymatous disk;
stipe 1.5 cm. long; primary branches 5-7, terete, smooth, giving rise
to numerous long, slender, secondary branches; leaves 0.5-1.5 cm.
long, asymmetrical, widest toward the apices, with very short petioles,
the basal half of the upper margin smooth and concave, the remainder
of the blade sharply dentate, midrib inconspicuous, cryptostomata
abundant and conspicuous ; vesicles scattered among the receptacles,
ellipsoidal, 1-2 mm. long, transformed from the base of a leaf, mostly
crowned by the remnants of the blade; receptacles 4-7 mm. long, 2-3
times forked, branches strict, spinulose, intermixed with leaves and
receptacles forming a heteroclyte cyme.

Cast ashore, La Paz, Lower California.

Setchell and Gardner, Mar. Alg. Gulf Calif., 1924, p. 733, pi. 20,
%. 74.

00899955