Identifier: phycologiaaustra02harv (find matches)
Title: Phycologia australica; or, A history of Australian sea weeds ... and a synopsis of all known Australian Algae ..
Year: 1859 (1850s)
Authors: Harvey, William H. (William Henry), 1811-1866
Subjects: Algae
Publisher: London, L. Reeve
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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central placenta; sporespyriform. Colour, when quite fresh, a dark livid-purple; changing onexposure to scarlet, orange, yellow, and white. Substance cartilaginouswhen fresh, horny and semitransparent when dry. It does not adhere topaper in drying. Very variable in habit and in colour; but, once seen, easilyrecognized under all its shapes. This is the Jelly-plant ofthe colonists of Western Australia, who use it in the manufac-ture of jellies and blancmanges, as Chondrus crispus (Carrageen)is used in England; and as Gracilaria liclienoides and othersare used in the East. All yield, on long boiling, mucilages ofa similar description, containing (according to the analysis ofDr. Apjohn) nitrogen in considerable quantity, and thereforehaving a fair claim to be regarded as nourishing food. Fig. 1. EucHEUMA SPECIOSUM,—the natural size. 2. Fragment with ramentaand conceptacles. 3. Section through a conceptacle. 4. Spores from oneof the spore-tufts :—the latter figures variously magnified.
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Ser. Chloeospermej;, Fam. Siphonacea. Plate LXV. CAULEUPA SIMPLICIUSCULA, J^. Gen. Chae. Frond consisting of prostrate surculi rooting from their lowersurface and throwing up erect branches or secondary fronds of variousshapes. Stibsiance horny-membranous^ destitute of calcareous matter.Structure unicellular, the cell (frond) continuous, strengthened inter-nally by a spongy network of anastomosing filaments, and filled withsemifluid grumous matter. Fructification unknown.—Caulekpa(Lamour.), from Kav\o<;, a stem, and kpirw, to creej). Frons ex surculis prostratis hie illic radicantibus et ramis erectis polymorpMsformata. Substantia corneo-membranacea. Structura tinicellulosa, cellulcemembrana continna hyalina intus fills cartilaglnels teH/dsslmis anastomo-santibus firmata et endochromate denso vlrldl repleta. Fr, ignota. Caulerpa simpliciuscula ; surculus robust, glabrous; fronds erect, cylin-drical, papillated, subsimple or sparingly branched; branches alter-nate, equal, obtuse,

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