c
the author of a dried collection of well preserved specimens of
Algæ, entitled “ Algæ Scoticoe.”
His specimens agree in every respect with authentic ones
from Professor A g a r d h himself, existing in the Herbaria
of Dr H o o k e r and myself.
The fructification I have not seen, nor indeed is A g a r d h
acquainted with it. That of L . Plnjlittis is equally unknown.
With this addition, the British Laminarioe amount to seven
species : we may fully, I think, anticipate the discovery of
an eighth, the L . fascia of A g a r d h ; and we have also on our
coast a doubtful plant, which seems almost entitled to be admitted
into the genus. I am by no means certain that the
plant figured by D i l l e n i u s , and quoted both by A g a r d h
and myself, may not he this doubtful species. There is a figure
in “ English Botany,” t. 2136. under the name of Ulva
plantaginea of R o t h , which neither A g a r d h nor L y n g b y e
seem to be aware of ; and I cannot but suspect that the subject
of it will prove either a distinct species, or a more completely
developed state of Laminaria fascia.
T ab. 277. A group o f fronds o f L. debilis, natural size. \
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