Ahnfeltia plicata (Huds.) Fr.

PLANTAE EXSICCATAE
AB UNIVERSITATE BRITANNICO-COLUMBIANA EDITAE
Series — ALGAE	Fasciculus I
1. LEATHESIA DIFFORMIS (Linnaeus) Areschoug, 1847: 376.
SYN.: Tremella difformis Linnaeus, 1755, p. 429; Leathesia tuberi-
formis S. F. Gray, 1821, p. 301; Leathesia amplissima Setchell and
Gardner, 1924, p. 3.
On rocks, and epiphytic on other algae in the upper intertidal zone.
Brown Island, near Friday Harbor, Washington, U.S.A. (Lat.
48°32'N. Long. 123° W.).
DESCRIPTION: Thallus up to 6 (12) cm. in diameter, yellowish brown in
colour; mature thallus of irregular outline with a much convoluted surface
and hollow in the center. Interior of thallus with colourless dichotomously
and radiately branched filaments with progressively smaller cells toward
the surface. Outermost portion of thallus with club-shaped or rounded
cells in assimilating filaments, and occasional fascicles of colourless multi-
cellular hairs.
LEG.: Robert F. Scagel, 1 July 1955 (No. 21).
DET.: Robert F. Scagel.
NEW YORK
BOTAN1CAL.
GARDEN
NEW YORK BOTANICAL GARDEN
02347544
PLANTAE EXSICCATAE
AB UNIVERSITATE BRITANNICO-COLUMBIANA EDITAE
Series —ALGAE	Fasciculus I
3. AHNFELTIA PLICATA (Hudson) Fries, 1835: 310.
SYN.: Fucus plicatus Hudson, 1762, p. 470; Gymnogongrus plicatus
Kützing, 1849, p. 789; Sterrocolax decipiens Schmitz, 1893a, p. 397.
On rocks in the lower intertidal and upper subtidal zones, fre-
quently with the lower portion buried in sand. Goose Island, at the
south entrance to San Juan Channel, Washington, U.S.A. (Lat.
48°27'N. Long. 122°57'W.).
DESCRIPTION: Thallus dark reddish purple to purplish black, with
erect, wiry branches repeatedly and dichotomously branched. Branches
terete. Thallus 5-10 cm. high.
LEG.: Robert F. Scagel, 21 June 1955 (No. 2).
DET.: Robert F. Scagel.
EW Y
OTAN
NEW YORK BOTANICAL GARDEN
02347546
PLANTAE EXSICCATAE
AB UNI VERSIT ATE BRITANNICO-COLUMBIANA EDITAE
Series — ALGAE	Fasciculus I
2. ENDOCLADIA MURICATA (Harvey) J. Agardh, 1847: 10.
SYN.:Gigartina muricata Postels and Ruprecht, 1840, p. 16; Endo-
cladia muricata forma inermis Setchell and Gardner, 1903, p. 297;
Endocladia muricata forma compressa Setchell and Gardner, 1903,
p. 297.
On rocks in the upper intertidal zone and in tidepools. Brown Island,
near Friday Harbor, Washington, U.S.A. (Lat. 3$°32'N. Long.
123° W.).	4
DESCRIPTION: Thallus erect, profusely branched, with terete branches
bearing numerous minute conical spines. Thalli from 2-6 cm. high, fre-
quently to 10 cm. in tidepools. Usually dark red to brownish black in
colour, but frequently greenish when in exposed tidepools.
LEG.: Robert F. Scagel, 20 June 1955 (No. 1).
DET.: Robert F. Scagel.
NEW YORK BOTANICAL GARDEN
NEW YORK
BOTANICAL*
garden
02347545
PLANTAE EXSICCATAE
AB UNIVERSITATE BRITANNICO-COLUMBIANA EDITAE
Series — ALGAE	Fasciculus I
4. GLOIOPELTIS FURCATA (Postels and Ruprecht) J. Agardh,
1851: 235.
SYN.: Dumontia furcata Postels and Ruprecht, 1840, p. 19.
On rocks in the upper intertidal zone. Turn Point on San Juan
Island, Washington, U.S.A. (Lat. 48°32'N. Long. 122059'W-)*
DESCRIPTION: Thallus erect, 1-5 cm. high, simple or a few times
dichotomously branched, with branches terete or slightly flattened. The
colour is brownish red to purple.
LEG.: Robert F. Scagel, 18 June 1955 (No. 3).
DET.: Robert F. Scagel.
NEWYORK BOTANICAL GARDEN
NEW YORK
BOTAN ¡CAL!
GARDEN
02347547
PLANTAE EXSICCATAE
AB UNIVERSIT ATE BRITANNICO-COLUMBIANA EDITAE
Series — ALGAE	Fasciculus I
5. HALOSACCION GLANDIFORME (Gmelin) Ruprecht, 1851: 279.
SYN.: Ulva glandiformis Gmelin, 1768, p. 232; Dumontia hydro-
phora Postels and Ruprecht, 1840, p. 19, pi. 35; Halosaccion hydro-
phora (Postels and Ruprecht) J. Agardh, 1852, p. 358; Halosaccion
fucicola (Postels and Ruprecht) J. Agardh, 1852, p. 358.
On rocks and epiphytic on other algae in the lower intertidal zone.
Turn Point on San Juan Island, Washington, U.S.A. (Lat. 48°32'N.
Long. 122°59'W.).
DESCRIPTION: Thallus a hollow sac filled with water, up to 30 cm. high
and 4 cm. in diameter. Yellowish brown, olive brown, or reddish purple in
colour. Usually in clusters.
LEG.: Robert F. Scagel, 18 June 1955 (No. 4).
DET.: Robert F. Scagel.
NEW Y