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SS4. 36. Ellis. 2.THALASSIOPHYTiE. Plcell.aph.
2. Ellisius coccineus. Scarlet ellis.
Threads much branched, scarlet; stem thick, shaggy,
obscurely jointed ; branches alternately doubly pinnate;
loles many-cut, tufted, jointed ; joints rather shorter than
broad.
Conferva coccinea, Huds. Fl. Angl. 603; Engl. Bot. lOib iJ)ilUa. Conf.S,
Conferva plumosa. Light/. Scot. 966.
Sea-shore.
Main stem rough; younger branches bright scarlet; theco
ovate and lanceolate.
&. tenuior. Threads slender, twigs short, and less feathered.
XII. 37. HUTCHINSIA. Agardh. Hutchins.
Thallus rose-red, branched, ]omteA', joints with a central
tube, all compound, streaked, or composed of many pa-
rallel longitudinal lines ; thecce external, ovate, lateral,
or immersed in the tips of the branches.—Marine.
a. Threads pervaded by 4 tubes, veined in network; branches
long, bristlelike.
1 Hutchinsia elongaia. Long hutchins.
Threads much branched, cartilaginous, purple; branches
and twigs bristlelike, long, very slender, stiff"; joints half
as long as broad ; lower joints obsolete, veined in network.
.Conferva elongata, DHIk:. Conf. 33 ;
Engl. Boi. 4229.
Ceramiiim elongatura, Roth Cat. 3, 128.
Hutchinsia elongata, Agardh Syn. 54.
Lobster-iiorn conferva.
Sea-shore; October.
Thallus spreading, 3 to 12 inches high, purplish brown;
branches and twigs narrower at both ends: joints Teiny,
rather straight, angles of the branches rounded.
2. Hutchinsia brachygona. Short-jointed hutchins.
Thallus diff'used, vaguely branched ; branches rather remote,
spreading ; twigs mostly simple, attenuated ; joints
half as long as broad, veined in network.
Fucus difFusns, Huds. Fl. Angl. 589.
Ceramiiim brachygonura, Lynghye Hydr. Ban. 118.
Sea-shore, on the rocks; annual; spring and summer.
Thallus red, when dry blackish, stiff".