Postelsia palmaeformis Rupr.

A ...........PLANTAE EXSICCATAE
AB UNIVERSITATE BRITANNICO-COLUMBIANA EDITAE
Series ALGAE	Fasciculus I
22.	CODIUM FRAGILE (Suringar) Hariot, 1889: 32.
§yN.. Fucus tomentosus Turner, 1811, p. 1; Codium tomentosum
Harvey, 1858, p. 29; Anthocodium fragile Suringar, 1867, p. 258;
Codium mucronatum J. Agardh var. californicum J. Agardh, 1887,
p. 44, pi. 1, fig. 3; Codium mucronatum J. Agardh, 1887, p. 43.
On rocks in the lower intertidal and upper sub tidal zones. Waadah
Island, at the entrance to Neah Bay, Washington, U.S.A. (Lat.
48°23'N. Long. 124°36'W.).
: Thallus up to 95 cm. high with one to several erect,
cylindrical, dichotomously branched fronds arising from a spongy disc.
Branches up to 10 mm. in diameter. Colour dark green.
LEG.: Robert F. Scagel, 18 July 1955 (No. 36).	NEW YORK
DET.: Robert F. Scagel.	BOTANICAL
garden
PT A1MTAF TTYiirfATAF
AB UNIVERSITATE BRITANNICO-COLUMBIANA EDITAE
Series — ALGAE	Fasciculus I
23.	POSTELSIA PALMAEFORMIS Ruprecht, 1852: 19.
On rocks in the middle and lower intertidal zones in areas exposed
to heavy surf. Waadah Island, at the entrance to Neah Bay, Washing-
ton, U.S.A. (Lat. 48°23'N. Long. 124°36'W.).
DESCRIPTION: Thallus erect, up to 45 cm. high, growing in dense stands.
Thallus comprising a stout hollow stipe attached by a holdfast of short
branched haptera and bearing numerous longitudinally furrowed blades at
the apex. Colour olive brown.
LEG.: Robert F. Scagel, 18 July 1955 (No. 39).
DET.: Robert F. Scagel.
NEW YORK
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