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price of Irish Moss. I think the Chondrus crispus may be greatly improved, either as a medicine, or as the 
essential constituent of blancmange and jellies, by dipping in a weak sulphuric or nitric acid, to destroy the 
Zoophyte, or decompose his cells of carbonate of lime, and then thoroughly washing and drying the plant 
before it is offered for sale. 
Genus, PHYLLOPHORA. Grey. 
Rigid membranaceous, proliferous, nerveless, or with a vanishing nerve ; fructi¬ 
fication, warts composed of radiating moniliform filaments, whose lower articulations 
are converted into spores ; also tetraspores collected into sori. 
No. 115. P. Mrodioei . Turn. Root a small disk, stem cylindrical, filiform, 
branched, the branches expanding into simple or forked, flat, membranaceous leaves, 
which are proliferous from the extremity ; fruit sessile, on the tips of the segments. 
Perennial, fruiting in spring. At low water mark on the rocks at Hurlgate, abundant. Also found 
floating at Red Hook, Staten Island, and other places. 
Genus, GYNOGONDRXJS. Mart. 
Cylindrical or compressed, horny, much branched, densely packed filaments, the 
innermost longitudinal, the middle curving outwards, and the periphery horizontal and 
moniliform ; fructification (as- far as known) naked warts, entirely composed of 
bead-like strings of cruciate tetraspores. 
No. 120. G. plicata . Hods. Horny, cylindrical, filiform, very irregularly 
branched, entangled, wiry, sub-dichotomous, axils obtuse; fructification (as far as 
known) oblong warts, composed of obscurely jointed filaments, surrounding or at¬ 
tached to the stem. 
At and below low water, on rocks at Hurlgate, and drifting abundantly on shore at Red Hook and 
Staten Island ; from 2 to 9 inches long. One variety of this plant has the filaments somewhat compressed, 
and in both, portions of the branches become nearly white. The warts are always of a yellowish hue, and 
seem as independent of the plant as if they were attached Zoophytes. 1 think the difference in varieties will 
not justify the separaiion into two species. This plant shows all the characteristics given by European 
authors for Poly ides, rotundus , of Gmel., and the Fur cellaria, fastigiata, of Huds. I have not seen official 
specimens of those authors, and rely solely on their published descriptions. 
Genus, DUMONTIA. Lamour. 
Cylindrical, tubular, filiform, filled with watery gelatine, membranaceous; fruc¬ 
tification, tetraspores attached to surface cells and inner surface. 
No. 123. D. fill for mis. FI. Dan. Tender, membranaceous, cylindrical, simple 
or pinnated, with long simple branches, attenuated at each extremity. 
Summer, at Hurlgate, on rocks at low-water mark; rare; 2 to 8 inches high; dull purple or green¬ 
ish hue. 
Genus, CATENELLA. Grev. 
Dull purple, membranaceous, filiform, constricted at intervals, composed of a lax 
net-work of anastomosing filaments; fructification, spherical masses of spores in ex¬ 
ternal capsules ; also oblong transversely parted tetraspores immersed. 
