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PLcell.aph. 2.THALASSIOPHYT^. 63.Gastrid. 383
Fucoides purpurcum elcganter pluinosum, Dillenin Rail Syn. 38,2.
Fuciis plumosus, Lin. Sp. PL Turn. Hist. 60; Engl. hot. 1308.
Fucus pcctinatus, Fl. Norv. 2, 132.
Fucus ptilotus, Fl. Norv. 2, 135.
Ceramium plumosuni. Roth Cat. 3, 135.
Plocamiuin p\umosi\m, Lamour. Tliiil. 50.
Ptilota plumosa, Agardh Syn. 39.
Sea-shores; perennial; June, October.
Thallus 9 to 12 inches long; branches 2-rowed; lobes
close together, plumose, reddish growing purplish.
/3. capillare. Thallus very narrow, nearly cylindrical,
jointed.
Fucus plumosus, Stackh. Ner. Brit. 105.
K. Fucoides. Thallus continuous, leatherlike, cartilaginous,
formed of longitudinallj'^ entangled fibres; colour
olivaceous, growing black, flat or threadlike; often inflated
into vesicles; Ao/^a5/5 fibrous or shieldlike* sporidia scattered,
in the substance of the thallus, or among conferva-
like threads either on the surface or in thecae immersed in
the thallus.
XXXIX. 64. FASCIATA. Rihlavd-weed,
Thallus flat, membranaceous, ribless ; stirps ; holdfasts
peltate; sporidia immersed in superficial mucilaginous
warts, formed of jointed fibres.
1. Fasciata plantaginea. Plantain rihhand-weed.
Thallus membranaceous, aggregate, narrow at bottom,
lanceolate, blunt; ec(ge flat.
Tremella marina calendulae folio, Dillen Muse. 46.
Ulva plantasinifolia, Wuff. Aquat. 23.
Ulva plantasiiiea. Roth Cat. .'i,326; Engl. Bot. 2136.
Laminaria plantaginea, Agardh Syn. 20,
Sea-shores, parasitic on zostera marina ; annual ; spring
Thallus 3 to 6 inches high ; edge mostly uncut, seldom
toothed.
2. Fasciata attenuata. Narrowed rihhand-iueed.
Thallus membranaceous, linear, narrower at both ends,
waved, not cut.
Fucus Fascia, Fl. Dan. 768 ;
Turn. Syn. 187.
Laminaria Fascia, Agardh Syn. 19.
Sea-shores; annual; spring.
Thalli aggregated, 6 to 9 inches high, waved or spirally
twisted.