52 



SERTULARIA. 



23. Sertularia repens. 



Creeping Coralline. 



Sertularia denticulis cy- This Coralline has alternate 

 lindricis oblique truncatis cylindrical denticles, opening 

 alternisy peduncidis con- obliquely ; with twifted ftalks, 

 tortis denticulis breviori- fhorter than the denticles ; 

 bus, ovariis the ovaries are unknowns- 

 Ellis Corallin. pag. 25. tab. 14. fig. b. B. 

 Sertularia Syringa. Linn.. Syft. Nat. Ed. 12, p. 13x1. 



24. Sertularia rugoia. Snail-trefoil Coralline. 



Sertularia denticulis al- This Coralline has. alternate 



ternis rugojis, ramis va- wrinkled denticles and irregu- 

 giiy ovariis rugoftjfimis lar branches ; the ovaries are 

 tridentatis. very much furrowed, and have 



three erect points at the open- 

 ing of each. 



Snail-trefoil Coralline. Ellis Corallin. pag. 26.. tab.. 

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



Sertularia rugofa. Linn. Syfl:. Nat. Ed. 12; p.. 1308. 



Thefe Corallines grow upon others on the Britifli coaft. 



25. Sertularia lendigera. 



Sertularia articulata 



fubdichotoma implex a,den- 



ticulis cy lindricis fecundis 



parallelis ad genicula mi- 



noribus. 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 



