VI. cell, aph . 2. THALASSIOPHYTiE. 63. Gastric]. 383 
Fucoides purpureum clcganter plurnosum, Dillen in Raii Syn. 38,2. 
Fuchs plumosus, Lin. Sp. PI. Turn . Hist. 60; Engl. Rot. 1308. 
Fucus pectinatus, FI. Norv. 2, 132. 
Fucus ptilotus, FI. Norv. 2, 135. 
Ceramium plurnosum, Roth Cat. 3, 135. 
Plocamium plurnosum, Lamour. Thai. 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, carti- 
laginous, formed of longitudinally entangled fibres; colour 
olivaceous, growing black, flat or threadlike; often inflated 
into vesicles; holdfasts fibrous or shieldlike : sporidia scat- 
tered, 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. Ribband- weed. 
Thallus flat, membranaceous, ribless; stirps 0; holdfasts 
peltate; sporidia immersed in superficial mucilaginous 
warts, formed of jointed fibres. 
1. Fasciata plantaginea. Plantain ribband-weed. 
Thallus membranaceous, aggregate, narrow at bottom, 
lanceolate, blunt ; edge flat. 
Tremella marina calendulas folio, Dillen Muse. 46. 
Ulva plantaginifolia, JVulf. Aquat. 23. 
Ulva plantaginea, Roth Cat. 3,326; 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 ribband-weed. 
Thallus membranaceous, linear, narrower at both ends, 
waved, not cut. 
Fucus Fascia, FI. 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. 
