Ectocarpus confervoides Harv.

• Region

  North America

• Country

  United States of America

• State/Province

  Texas

• Locality

  Galveston Bay

• Coordinates

  29.4969, -94.916

• Coordinate Uncertainty (m)

  25931.6

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of shore of Galveston Bay. Measured from coordinates to farthest extent of the bay to find linear extent (25920 m). Input information into MaNIS Georef. Calc. to find uncertainty radius (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

NEW YORK
BOTANICAL
G A RDÏTN
Setefeell, W. A. & Gardner/ N. L. Melanophycea«
Univ. Calif. Publ. Bot. 8: 412, 1925
Ectocarpus confervoides (Roth) Le Jolis
Fronds gregarious, forming expansions or tufts, 0.5-10 cm. high,
light yellowish to dark brown, sparingly to frequently branched,
branching alternate or secund, never opposite, more or less cor-
ticated; branches long or short, gradually attenuated, sometimes end-
ing in a hair; prostrate filaments irregular, branched, closely attached
to the substratum, but never penetrating it; chromatophores band-
shaped, branched, often provided with pyreuoids; zoMporangia pre-
sent in some forms; gametangia short-obovoid or longer or shorter
fusiform, suddenly or somewhat gradually attenuated toward the
blunt apes, never ending in a hair, 30-250/x, (commonly 60-150/*)
long and 12-35.//. thick, solitary or seriate, terminal or intercalary.
Growing on rocks, wood, and larger Melanophyceae, widely dis-
tributed in its various forms. Alaska (Yakutat. Baf| to Washington
(Whidbey Island),
¿Le Jolis, Lille alg. mar. Cherb., 1863, p. 75 (in part); Kjellman,
Handb., 1,1890, p. 77; Kuckuck, Beitr. Kennt. Hfet. Arten, 18tl| p. 69;
Saunders, Alg. liar rim an Exp. 1901, p. 418; Setchell and Gardner,
Alg. N.W. Amer., 198% p. 237. Ceramium confervoides Roth, Cat.
Bot., I, 1797, p. 151, pi. 8, fig. 3. Ectocarpus siliculosus Lyngbye,
Hydrophyt. Dan., 1819, p. 131, pi. 43B.
Kjellman was the first to segregate Ectocarpus siliculosus from
E. confervoides and limit it in the sense in which it is understood
by Kuckuck and most writers since that time. Even in this narrow
sense, Ectocarpus confervoides includes some eight or ten reasonably
distinct forms, some of which may ultimately be found to deserve
specific rank. It is to be distinguished from Ectocarpus silicvlosus
I®25]	Setchell—Gardner: Melanophyceae	413
by never having the gametangium prolonged into a hair, from E.
acutus by having blunt or piliferous branches, and from all the species
of Ectocarpus having band-shaped chromatophores by the shape and
dimensions of its gametangia.
Olo I.
NEW YORK
BOTANICAL
GARDEN
NEW YORK
Botanical
Herbarium of The New York Botanical Garb&$deisi
NEW YORK BOTANICAL GARDEN
02233049
02233049