60 THE OCEAN. 
bulbosa, and the larger specimens of J. digitata and 
saccharina, with some small kinds, as Ahodomenia 
palmata, Hahkdrys siliquosa, and Delesseria sanguinea: 
In places uncovered only at the lowest ebbs, smaller 
plants of ZL. digitata and saccharina abound with 
.Himanthalia lorea, or Sea-thongs. On the beaches 
uncovered by every tide, /. serratus cccurs lowest 
down, along with Chondrus crispus and mammillosus ; 
next comes F. nodosus, and higher up, F. vesiculosus. 
Beyond this, F. canaliculatus still grows, thriving 
very well if only wet at flood tide, though liable 
to become dry and shrivelled during a great part of 
the day. Lastly, Lichina pygmea is satisfied if it be 
within reach of the spray.”* 
In examining these Algz, and especially if we 
collect them for preservation, we shall find very fre- 
quently entangled among them, branches of a sub- 
stance which adheres with so much tenacity as to 
cause no little trouble in cleansing the specimens. 
I refer to the common Coralline (Corallina offici- 
nalis). No organic substances have so much divided 
naturalists in opinion as to their real nature as the 
Corallines. Evidently placed on the very verge of 
the animal or vegetable kingdom, it required a 
minute acquaintance with their structure, derived 
from the closest observation, and all the research 
of modern science, to decide the long uncertain 
question, and to fix them where they now by com- 
mon consent hold their place among the vegetable 
tribes. The one of which I speak, and the most 
*Edin. Encye. Art. “Fuci.” Most of the species here alluded to I 
have described above. 
