52 



SERTULARIA. 



23. Sertularia repens. 



Sertularia dentkulis cy- 

 lindricis oblique truncatis 

 altemis, pedunculis con- 

 tortis denticulis breviori- 

 buSy ovariis 



Ellis Corallin. pag. 25, 



Creeping Coralline. 



This Coralline has alternate 

 cylindrical denticles, opening 

 obliquely ; with twitted ftalks, 

 fhorter than the denticles - y 

 the ovaries are unknown. 



tab. 14. fig. b. B. 

 Sertularia Syringa. Linn. Syft. Nat. Ed. 12. p. 1311. 



24. Sertularia rugofa. Snail-trefoil Coralline. 



Sertularia denticulis al- This Coralline has alternate 



ternis rugojis, ramis va- wrinkled denticles and irregu- 

 gisy ovariis rugojijjijnis lar branches ; the ovaries are 



very much furrowed, and have 

 three erect points at the open- 

 ing of each. 



Ellis Corallin. pag. 26. tab. 



tridentatis. 



Snail-trefoil Coralline. 

 15. No. 23. fig. a. A. 



Sertularia rugofa. Linn. Syft. Nat. Ed. 12. p. 1308. 



Thefe Corallines grow upon others on the Britifh coaft. 



25. Sertularia lendigera. 



Sertularia articulata 



fitbdichotoma imptexayden- 



ticulis cylindricis fecundis 



parallelis ad genicula mi- 



noribuSy ovariis 



Nit Coralline. 



This Coralline is jointed ; 

 the branches are fubdivided 

 and irregularly interwoven ; 

 they have cylindrical parallel 

 denticles coming out on one 

 fide, and growing lefs at the 

 joints ; the ovaries are un- 

 known. 



Nit 



