Gelidium crinale f. luxurians Collins

• Region

  North America

• Country

  United States of America

• State/Province

  California

• County/Municipio

  San Diego Co.

• Locality

  Pacific Beach, on stones at low water mark

• Coordinates

  32.7913, -117.246

• Coordinate Uncertainty (m)

  2291.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of mdpt of Pacific Beach shore by Measured btw endpts; 1/2ing dist., choosing closest coord. on shore. Meas. from coord.- farthest extent of shore =linear extent (2280 m). Input info into MaNIS Georef. Calc. = uncert. rad.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

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g;	Phycotheca Boreali-Americana.	Collins, Holden and SetcHell.

s 1138. Gelidium crinale forma Mans herbarium

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“ :g	Collins, n. f. the

o !o	„	.	. .. ... JBY ft. L-, ITTP

^ ?	On stones at low water mark, Pacmc Beach, ban Diego

^	County, California, March 8, 1899.

MRS. E. SNYDER.

Fronds up to a decimeter long, simple below, but usually
much branched pinnately above. Color of the growing plant a
warm red brown, which is often retained in drying.

F. S. COLLINS.

G-el id ium or inale (Turn.) J. Ag. forma 1 incur Ians
Khodora e:111. Collins, n. f. 1906..

Fronds up to a decimeter long, simple below, but usually
much branched pinnately above. Color of the growing plant a
warm red brown, which is often retained in drying. On stones
at low water mark, Pacific Beach, San Diegof&California, March
8, 1899.	' v

Mrs. E. Snvder.

Gelidium crinale var. luxurians Collins, Gardner.

Univ.Calif.Publ.Bot.13t277.pl.46.f.l.pi.47.f.3. 17 Mr 1927.

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Fronds fragile,5-6*5 cm. high, 150-200)1 diam.,attached
by short rhizoids* almost uniform in diameter throughout,
broadly oval in cross-section, terminal ramuli almost cylin-
drical; main branches mostly of three orders, each order re-
duced slightly in size, chiefly distichous; branches not at
all or only slightly constricted at the base, alternate or
opposite; surface cells without definite arrangement,6.5-
8p. diam.; medullary cells relatively uniform in size, 14-
18)i diam.,thick walled, granular; rhizoidal filaments
collected mostly in the center of the fronds; tetrasporangial
sori mostly on slightly swollen fructiferous ramuli but not
extending to the acute apices, occasionally in the fronds bear-
ing the fructiferous ramuli, even at times in three orders of
ramuli; cystocarps scattered either in the main fronds or to-
ward the base in long, tapering, ultimate ramuli; antheridia
in discontinuous sori at the base and farther out on the fructi-
ferous ramuli; color dark red, usually fading to pink.

Growing on rocks in pools in the lower littoral belt,
southern California. Collins, in Collins, Holden and Setchell,
Phyc. Bor. Amer. (Bxsicc.), no. 1138.

This form of Gelidium crinale seems closely related to
G. sinicola of this paper. It differs from this species in
being much more slender, less profusely and more regularly
branched, has cells more nearly uniform in size as seen in
cross-section, has straighter branches, and differs in color.

I have examined a sterile fragment of the assumed type of G.
crinale furner, obtained from the Herbarium at Kew, England,
by W.'A. Setchell. Our material is considerably more slender,
has a wider medulla, with differences in the size of the cells.
The type specimen being sterile, I am unable to compare fruits.
The illustrations cited above are of young tetrasporic plants
found in the vicinitjr of Santa Monica. They are smaller and
less profusely branched than the type material found at pacific
Beach. San Diego County. When more is known of it this may
prove to be a distinct form.

00937554