pute o x iijn .
W.HH.del.etlith. Veevf'. iii.p .
Ser. M elanospekmbas.
Tain. Fucece.
P l a t e CXXXIII.
CYSTOSEIEA FIBROSA, Jy-
Gen. C h a e . Frond mucli branched, occasionally leafy a t th e b a s e ; branches
becoming more slender upwards, and containing strings of simple
air-vessels within their snbstance. Receptacles terminal, small, cellular,
pierced by numerous pores, which communicate with immersed,
spherical conceptacles, containing parietal spores, and tufted « » a m * « .
C y s to s e i e a (A^.),— from -cwr«, a bladder and aupi, a chain-, because
th e air-vessels are often arranged in strings.
C y s t o s e ie a / W ; stem woody, compressed, very much b ran ch ed ;
branches slender, alternately bi-tri-pinnate, pinnules furnished v ith
linear, setaceous, acute ram u li; vesicles elliptical, solitary or in pairs,
immersed in the smaller branches, remote from th e apices; receptacles
linear, very long, more or less clothed with setaceous ramuli.
CYSTOsEraA fibrosa, J g . Sp. Alg. vol. i. p. 65. Ag. p. 385. S p re ^ .
Syst. Veg. vol. iv. p. 317. Gree. Alg. Brit. p. 8 Rook. S r . M. to . .
p ^ 66. Rarv. in Mack. M. Rib. part 3. p. 168.
Alg. -Banm. no. 53. Endl. %rd Suppl. p. oO. El. Ban. 1 .1903.
P h y l l a c a n th a fibrosa, IGitz. Phyc. Gen. p. 356.
P u cns fibrosuB, Huds. El. Ang. p. 575. ^ Z n
vol hi p 137. IC ia .v o l.iv . p. 87. Stack.Ner. B n t .p f f d . i .1 4 . I-um.
vol i. p. 93. Turn. Hist. t . 2D9. E. Bot. 1 .1969. Lamour. Ess.-p. \%.
T dccs abrotanoides, Gmel. p. 89. Esper, p. 65. t. 29.
P u cu s baccatus, Gmel. p. 90. t. 3. f. 2. Esper, Ic. p. 108. t. 54.
I 'c c u s setaceus, JZm*. Th .^»17. p. 575-
H ab. On rocks, near low-water mark and in tide-pools; also “
fathom water. Perennial. Summer. I re q u e n t on th e shores of
E ngland and of th e north, west, and south of Ireland. N o t found in
Scotland.
Geoge . D is t e . Atlantic shores of Europe, from England to Spam.
D f s c e Boot a large, hard, conical expansion. Eronds mostly solitary, from
“ toTo tlll-ee fert lo n ^ or more, Neiy bushy, and excessively brane ied.
Main stem as thick as a swan’s qiiill, simple or once or twice I’^ncbed,
from six inches to a foot in length, lurnished tbrougliout with alternate,
snbdisticbous slender branches, accompanied
linear simple or forked, narrow leaves, which are furnished with a mid-iib
and Attenuated to each extremity. Branches from ^ , “1
leno-tb as thick as smaU twine, somewhat compressed, gradually attenuated
from the base to tbe apex, but without any sweUing at tbe base, more or
less naked below, and rough with tbe remains of broken ranaihi, closely
piunated above witb alternate, distichous branclilets which in like inaiinei
C p t L l e d witb a second, and these with a third series ot braiieblets,