A preliminary paper on Costaria with description of 4 
new species. 
DE ALTON SAUNDERS. 
WITH PLATE VII. 
In the latter part of last July, I found on the shores of 
Monterey Bay a few imperfect specimens of one of the Lam- 
inariacee which seemed to me at once to be different from 
anything described in the literature accessible in the Hop- 
kins Sea Side Laboratory. It was evidently a Costaria, but 
the two described species of Costaria have five narrow ribs, 
while this plant had one broad one. 
A few days later I collected the same plant a mile further 
east near the steamship landing at Monterey. In the course 
of a week or so two of the Stanford students who were dredg- 
ing for the zoologist of the Hopkins Laboratory brought me 
several fragments of the same Costaria. These fragments 
had been brought up by the dredge a half-mile from the shore 
from a depth of about fifty feet. A systematic search showed 
that the plant was quite common, at least in one part of the 
bay, growing in large clusters attached to rocks twenty to 
thirty feet from the shore, in eight to fifteen feet of water. 
As one looked at it waving back and forth in eight or ten 
feet of water he would take it at once to be Dictyoneuron 
Californicum Rupr., which is abundant all along the Califor- 
nian coast. 
I obtained a large number of plants, many of which were 
in fruit. A careful search along the shore of other parts of 
the bay, and also of the neighboring ocean, has so far failed 
to reveal any trace of the plant. 
Iam informed that specimens have been sent to at least 
one of the leading phycologists of the United States, and he 
referred it to Costaria costata (Turn.) (C. Turneri Grev.)- 
The specimens sent must have been very imperfect indeed 
to give one such an impression as will be seen by comparing 
C. costata (Turn.) with this plant. 
GENERAL DESCRIPTION.—The plant is of an olive-green 
color, and varies in shape from oblong to lanceolate linear. 
Meee before the Botanical Seminar, University of Nebraska, December 22, 
I 
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