Veficulated Corallines. ii 



It is generally found with a thick Tuft of fhort Branches, 

 growing clofe together on the upper Part of the Stem. See 

 its natural Size at N. 9. Fig. 6. 



Each Division of a Branch has two Prongs or Horns. Tlie 

 Denticles lie fo remarkably clofe to the Branches, as fcarce 

 to be diftinguillied from them without the Help of a Micro- 

 fcope: But by this we difcover a fmall Hole in tiie Top of each, 

 as in moil other Denticles. 



The Veficles are placed at the Bottom of the Branches ; 

 and appear to be of an oval Shape, with an Operculum or 

 litde Cover at the Top of moft of chem. 



They are found on the Coaft of Scotland^ and in the North 

 of Engla?id ; particularly about Scarborough^ where the Fifh- 

 ermen have given them the Name of Bottle-bruflies. 



Fig. 5, in Plate V. fliews a Part of a Branch magnified* 

 with its Velicles. 



N°. 10. Corallma ereSia pennata, denticulis ahernis cauli ap~ piatevi 

 prejjis^ Lonchitis vel Polypodii facie. F'g- «• ^■ 



Sea Spleenwort or Polypody. 



This horny upright Coralline has two Rows of ftrait hollow 

 Branches a little comprefTed, 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 fmall Branch 

 is furniflied 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 projed: 

 a very little. The main Stem is jointed here and there like 

 a Reed. 



The natural Size is reprefented at N°. ro. Fie. a. 



C 2 " Fig. 



