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S^8 ST.Hutchin. 2.THALASSIOPHYT^. Plcell.aph.
15. Hutchhisia parasitica.
Parasitic hutcUvs,
Threads doubly pinnate, rather stiff, brownish red ; segmenls
and lobes Q.\ternaie; joints not quite so long as broad.
Conferva parasitica, Huds. FlJngl. 604 ; Engl. Bot. 1429 ; Dillw. 87.
Hutchinsia Mostingii, Lyngbye Ilydr. Dan. 116?
Sea-shore; on marine plants.
Tlialliis 1 or 2 inches long, slender; tivigs pointed,
gradually smaller; tlieccc oblong, axillary, pedicelled.
16. Hutchinsia Brodim. Brodie's hvichins.
Threads very much branched, purplish black ; branches
long; twigs scattered, spreading, many-cut, in bundles;
joints of the branches obsolete, of the twigs rather longer
^han broad.
Conferva Brodiaji, Dillw. Conf. 107 ;
Engl. Bot. 2589.
Thallas 1 or 2 feet long, repeatedly and finely branched
theccB lateral or axillary.
17. Hutchinsia pulchella. Pretty hutchins.
Thallus much branched, round ; tranches and twigs
ascending, alternate, close, pointed, simple or 2-cut; joints
shorter than broad.
Fucus crisfatus y, Turner Uist. Fiic. 48.
Fucus cristatusj Engl. Bot. 1925.
v5ea-shores.
Thallus 2 or 3 inches high, compressed, repeatedly alternately
branched.
JCIII. 38.VERTEBRATA. Backbone.
Thallus round, forked, branched, smooth ; axis central,
jointed ; joints composed of many tubes, with a cewtral
opake spot; thecce. ovate, lateral, or in the tip of the twigs.
Vertehrata fastigiata. Even-topped backbone.
Threads forked, even-topped ; joints half as long as
broad, with a central black spot.
Conferva marina geiiiculata rainosissima lubrica, brevibus et palmatim
congeslis ramulis, Dillen in Rail Syn. 61, 24.
Conferva marina, nigra palma(a, Dillen Muse. 32.
Conferva polymorpiia, Z,fra. S. P. 1636; Engl. Bot. UQi; Dillw. M.
Fucr.s lanosiis, izn. Syst. Veg. e.d. 13, 815.
Ceramium fastigiatum, Roth Cat. 2, 175.
JHutchinsia fastigiata, Agardh Syn. 53.
Sea and mouths of rivers; parasitic on fuci.
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