Stictyosiphon tortilis (Gobi) Reinke

HERBARIUM DF
THE NEW YORK BOTANICAL GARDEN
ALGAE ?F
Stictyosiphon tortilis (Rupr.) Reinke
Setchell, W. A. à Gardner; N. L. Melanophyeeae
Univ. Calif. Pulb. Bot. Qj 529, 1925
'^^^^-^"'^Ctictyosiphon tortilis (Rupr.) Reinke
Fronds filiform, long attenuate, closely aggregated, repeatedly and
alternately branched, the branches bearing minute ramuli mostly
opposite, 5-8 cm. high, often with -a small, longitudinal, central cavity
in the lower portions; cortical cells with branched band-shaped chro-
530 University of California Publications in Botany [Vol. 8
matophores; color dark olive brown; zoosporangia and gametangia
scattered or aggregated into more or less transversely arranged groups.
Port Clarence, Golofin Bay and Unalaska Bay, Alaska.
Reinke, Algenfl. westl. Ostsee, 1889a., p. 55, Atlas, 1889, p. 47, pis.
31, 32; Collins, Holden and Setchell, Phyc. Bor.-Amer. (Exsicc.), no.
987. PlnXoeospora tortilis Setchell and Gardner, Alg. N.W. Amer.,
1903, p. 245. Scytosiphon tortilis Ruprecht, Tange, 1851, p. 373.
The plants of Bering Sea appear to belong in the form cycle of
this Arctic species. We seem to remember having seen specimens
from farther south along our coast, but cannot definitely place them.
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