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648 University of California Publications in Botany [Vol.8
5-8 m. long, 2.5-3.5 cm. broad, densely covered on both sides with short
blunt tubercles, and along each margin with outgrowths bearing the
ellipsoidal bladders and smooth ovate or spatulate sporophylls among
the sterile leaflike structures; blade in the young specimens coarsely
rugose, conspicuous, but soon lost.
Growing in the upper sublittoral and lower littoral belts. From
the southern end of Vancouver Island to Point Conception, California.
Areschoug, in Bot. Not., 1878, no. 3, p. 66; Setchell and Gardner,
Alg. N.W. Amer., 1903, p. 271; Setchell, Kelps of the U. S. and
Alaska, 1912a, p. 164; Muenscher, Key to the Phaeophyceae, 1917,
p. 274; Collins, Holden and Setchell, Phyc. Bor.-Amer. (Exsicc), nos.
1741 and XCII ; Tilden, Amer. Alg. (Exsicc), no. 236. Macrocystis
Menziesii Agardh, Sp. Alg., 1820, p. 49. Macrocystis obtusa Harvey,
Botany Beechey's Voyage, 1833, p. 163 (cf. Harvey, 1852, p. 62).
Phijllospora Menziesii Ruprecht, Neue Pflanzen, 1852, p. 70, pi. 4.
Fucus Menziesii Turner, Hist. Fuc, 1808, p. 58, pi. 27.
This plant is often very long, with several branches arising mostly
near the base as outgrowths which, unlike those of the sporophyll type,
have lateral blades, transition places, and lateral outgrowths in turn,
developing like the main stipe and rhachis. The bladders are frequent
but develop in no exact order.
Egregia laevigata Setchell
Holdfast and stipe much as in E. Menziesii, but the true stipe and
the rhachis smooth on both sides, the marginal outgrowths very
variable in different individuals and at different ages of the same
individual, some profusely dissected and filiform, even capillary, others
large, linear and entire, up to 15 em. long; the bladders varying in
shape from spherical to very narrowly ellipsoidal.
Growing on rocks in the lower littoral and upper sublittoral belts.
Extending from the vicinity of Point Conception, California, to some
unknown locality on the west coast of Lower California, at least as
far down as Ensenada.
Setchell, Notes on Kelps, 1896, p. 44, Kelps of the U. S. and Alaska.
1912a, p. 164; Collins, Holden and Setchell, Phyc. Bor.-Amer.
(Exsicc), nos. 420 and XII; Tilden, Amer. Alg. (Exsicc), no. 340.
Egregia menziesii Farlow, Anderson and Eaton, Alg. Exsicc. Amer.-
Bor., no. 111.