: = Habitat. On the coast of Corsi 
_ 'THALLOGENS. 8 ALGALS. 
irregularly cut, with dichotomous Segments entire at the edge or fur- 
nished with lateral leaflets ; Spores distributed in cloud-like spots over 
the whole frond. 
Habitat. On rocks in the sea. 
Quality. Nutritious. Smells of violets. : : 
Uses. sewined as food by the poor of many northern nations. Sudorifie.— Lightfoot. 
Piocarta. Nees. 
Frond cartilaginous, cellular as if jointed, cylindrical or compressed, 
branched, dull red, Tetraspores immersed in the substance of the 
surface, or collected in superficial spheres or coccidia. 
1. P. Helminthochortos Nees.— Gracilaria, or Spheerococcus, or Gigartina 
Helminthochortos of others (Corsican Moss.*) Fig. 7 
Frond cartilaginous, filiform, tufted, entangled ; the 
the branches setaceous, somewhat dichotomous, 
__ the separations of the tiers of red cells, 
ca, and elsewhere in the Mediterranean. 
Quality. Anthelmintic, nutritious, saline, strong-scented. 
__ Uses. Tn removing the Ascaris lumbricoides, 
2. PB. tenax Nees.— Spheerococcus or Gracilaria tenax of authors. 
Frond somewhat gelatinous, slippery, filiform, dichotomous; branches spread- 
ing, the uppermost reflexed and acute; coccidia hemispherical, sessile, 
seattered, : 
Habitat. The Chinese seas. 
Quality. Gelatinous, glutinous, nutritious, 
Uses. Soups and jellies among the Chinese 3 also as size and gum. 
primary stem creeping ; 
striated transversely at 
a 
Fig. 7.—Plocaria Helminthochortos ; a natural size ; 
* As sold in the shops, this consists of various marine 
with a very little Plocaria intermixed. 
5 one of the branches much magnified. . 
Productions, especially of Laurencia obtusa, 
