Veficulated CoraLuines. 11 
It is generally found with a thick Tuft of thort Branches, 
growing clofe together on the upper Part of the Stem. See 
_ its natural Size at N. g. Fig. 4. 
Each Divifion of a Branch has two Prongs or Horns, The 
Denticles lie fo remarkably clofe to the Branches, as fcarce 
to be diftinguifhed from them without the Help of a Micro- 
{cope: But by this we difcover a {mall Hole in the Top of each, 
as. in moft other Denticles. | 
The Veficles are. placed at the Bottom oF the Branches ; 
and appear to be of an oval Shape, with an Operculum or 
little Cover at the Top of moft of them. Ree. ° 
They are found on the Coaft of Scotland, call Gave North 
of England ; particularly about Scarborough, where the Fifh 
ermen have given them the Name of Bottle-brufhes. _ , 
Fig. B, in Plate V. fhews a Part of a Branch magnified» Rit 
with its Veficles. ee ; . 
N°. 10. Corallina ereéta pennata, denticulis alternis cauli ap- pase vr, 
preffis, Lonchitis vel Polypodii facie. . Fig. @. A. 
Sea Spleenwort or Polypody. =§ : ts 
This horny upright Coralline has two Rows of ftrait hollow 
Branches a little compreffed, which are placed on the mid- 
dle Stem oppofite to each other, in a parallel and alternately 
pennated Form, like the Leaves of Polypody : Each {mall Branch 
is furnifhed with two Rows of Denticles, placed alternately 
oppofite, and feem funk into the Branch ; fo that they appear 
as Part of it; except their'Tops, which are open, and project 
a very little. The main Stem is jointed here and there like 
a Reed. re Says 
The natural Size is reprefented at N°. ro. Fig. a. 
C 2 Pig. 
