The English flora - SeaweedAfrica

Diclyusipht :n.\ ALGiE INARTICULATE. 279
Rocks and stones in the sen, principally on the south coast of England
; Sussex, Falmouth, Dawlish. Meadfoot and Sidmouth, Mrs.
Griffiths. Cromer, Mr. Turner. Near Belfast, Dr. Drum mond. Firth of
Forth, Dr. Grcvillc. © . Summer.
3. P. tenuissima, Grev. (delicate Punctarict); frond sublinear
very thin transparent.— Grev. Alg. Brit. p. 54. Zo?iaria?
tenuissima, Ag. Syst. Alg. 268 Zonaria? plantaginca, var. tenuior,
Ag. Sp. Alg.v. 1. p. 138.— Ulva plantaginea, var. tenuior, Lyngb.
Hydroph. Dan. p. 31. t. 6.
Parasitic on Zostera marina, frequent on the coasts of the Isle ot
Bute, Dr. Greville. Appin, Captain Carmichael.— " Two to 8 inches in
length. Substance exceedingly thin and transparent, highly and
beautifully reticulated, slightly lubricous. Fructification unknown."
Grev,
16. Striaria. Grev. Striaria.
Frond filiform, tubular, continuous, membranaceous, branched.
Root naked and scutate. Fructification; groupes of round-
ish seeds, forming- transverse lines. Grev. Alg. Brit. p. 54. t. 9.
—Named from the transversely striated appearance, caused by
the lines of fructification. " It is distinguished from the preceding
Genus, by its tubular or branched frond, and by the uniformly
transverse disposition of the groupes of seeds. From the following
it differs in the last named character and in the more
highly reticulated structure."
1. S. attenudta, Grey, (attenuated Striaria). Grev. Crypt. Fl.
( Synopsis,) p. 44. Alg. Brit. p. 55. t. 9.— Carmichaelia at-
tenuata. Grev. Crypt. Fl. t. 288.
In the sea, on various Algae; Appin, Capt. Carmichael. Shores of Bute,
Dr. Greville. Belfast Lough,. Dr. Drummond. ©. Summer.— "Frond
:i— 12 inches in height, less than a line in diameter, much branched, the
branches elongated, attenuated at both extremities, mostly opposite,
pale olivaceous green."
—
17. DiCTYOsfpHON, Grev. Dictyosiphon.
Frond filiform, tubular, continuous, branched. Rt minutely
scutate, naked. Fructification; ovate scattered seeds,
lying- beneath the epidermis. Grev* Alg* Brit p. 55. t. S.—
Nam.'; Sjktvo, a net, and crifuv, a tube, from the tubular and iv-
ticnlated frond.
—
1. D.ftBnictildceus, Grey, (fenncl-leavi I Dictyosiphon)* Grev.
Ah. Brit. p. .*>. /.
/-. hi I. Conferva
8. Scytosiphon faenicul., Ag. Sp.Alg. r. 1.
faznicul^ Units.— Fueus subtiiis. 'Turn. Hist.
I'm-, t. 234.
In basins f water left l>\ die receding of tin' tide; upon Ck
lum end other .//.'.(•, frequent on the western coasts ami isles "i 8
land, and in the Firth of Forth. Dr. Greville. In Anglesea. DiUemms.
Cornwall. Hudson. Bantrj Bay, M Hutchnu t and Belfast, /'
Drummond. ©. Spr, and Summer. — " One to manj fee! long,mu< ' bram h-