Placellwaph. 2. THALASSIOPHYT. 37. Hutchin. 336 
‘b. Thallus tubular, solid ; joints streaked lengthways. 
3. Hutchinsia fucoides. Wracklike hutchins. 
Threads very much branched, diffused, rather cartilagi- 
nous, brownish-black; éwigs horizontally spreading, forked; 
Jast twigs alternate, bent inwards, pointed; joznts rather 
Jenger than broad. 
Conferva fucoides, Huds. Fl. Angl. 608; Dillw. Conf. 153 Engl. Bot. 
1743. 
Ceramium violaceum, Roth Cat. 1, 150. 
Hutchinsia violacea, Agardh Syn. 54? 
Sea-shore; July to September. 
Thallus very bushy, 3 to 12 inches high; outline orbi- 
cular, blackish brown when dry, elastic; joints composed 
of a simple series of small oblique veins. 
4. Hutchinsia nigrescens. Blackish hutchins. 
Threads very much branched, stiff, rather cartilaginous, 
brownish black; ‘wigs upright, forked, pointed; joints ra- 
ther longer than broad. 
Conferya nigrescens, Huds. Fl. Angl. 602? Engl. Bot. 1717. 
‘Sea-coasts. 
Thallus closely tufted, 4 to 6 inches high, outline nar- 
row wedgeshape; main filament very thick; branches and 
twigs straight, upright. 
5. Hutchinsia fibrata. a Threaded hutchins. 
Threads branched, reddish purple ; branches forked ; twigs 
rather bundled; ¢7ps furnished with pellucid jointed fibres ; 
joinés of the stem lang, of the twigs as.long as broad. | 
-(Gonferva fibrata, Dillw, Syn. 159; Engl. Bot, 2139. 
Sea-shore, on marine plants. 
Thallus closely tufted, 2 or 3 inches high; end of the 
twigs often pellucid, colourless, fringed with many long, 
slender, forked, transparent fibres. 
6. Hutchinsia urceolata. Pitcher hutchins. 
Threads much branched, diffuse, reddish brown; twigs 
spreading, short; joints of the stem longer, of the twigs 
shorter than broad; veins few; thece pitchershape. 
Conferva nigrescens, Huds. Fl. Angl. 602? 
‘Gonferva urceolata, Dillw. Syn. 156; Engl. Bot..2365. 
Sea-shores on rocks, or marine plants. 
’ 
