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PLcdl.aph, 2.THALASSI0PHYT^. 37.Hutchin. S3S
b. Thallus tubular, solid; joints streaked lengthways.
3. Hutchinsiafucoides. JVracklike hidchins.
Threads* very much branched, diffused, rather cartilaginous,
brownish-black; twigs horizontally spi-eading, forked;
last twigs alternate, bent inwards, pointed; joi^z/^ rather
longer than broad.
Conferva fucoides, Huds. Fl. Angl. 608 ; Billw. Conf. 75 ; Engl. Bot.
1743.
Ceramium violaceum, Roth Cat. 1, 150.
Hutchinsia violacea, jigardh Syn. 54 ?
Sea-shore ; July to September.
Thallus very bushy, 3 to 12 inches high; outlijie orbicular,
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; twigs upright, forked, pointed; joints rather
longer than broad
Conferva nigrescens, Huds. Fl. Angl. 602? Engl. Bot. 1717.
Sea-coasts.
Thallus closely tufted, 4 to 6 inches high, outline narrow
wedgeshape; main filament very thick; branches stxid.
twigs straight, upright.
5- Hutchinsiafibrat a.
'
Threaded huichins.
Threads branched, reddish purple ; branches forked ; tivigs
rather bundled ;
tips furnished with pellucid jointed fibres
joints of the stem Icaig, of the twigs as long as broad.
Conferva fibrala, 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 v/ith many long,
slender, forked, transparent fibres.
6. Hutchinsia urceolata. Pitcher hutching.
Threads much branched, diffuse, reddish brown ; twigs
spreading, short; joints of the stem longer, of the twigs
shorter than broad ; veins few ; thecce pitchershape.
Conferva nigrescens, Huds. Fl. Angl. 602 ?
Conferva urceolata, Dillw. Syn. 156 ; Engl. Bot. 2365.
Sea-shores on rocks, or marine plants.