CRYPTOGAMIA ALGJE, ^6y 



Striated Laver, or Turkey-feather. Anglis. 



Upon the fea-rocks near Aberdeen^ difcover'd 

 above a century paft by D. Cargill. VII. 



Several plane thin leaves arife from the fame root, 

 each of them fan-fhap'd, commonly about two 

 inches in length and breadth j of a dull green 

 color, cover'd with a white pellicle, tranfverfely 

 ftreak'd with feveral brown concentric arcs, at 

 the diltance of one-tenth of an inch from each 

 other, and obfcurely reticulated by other flraight 

 longitudinal lines. 



The feeds are placed in the concentric arcs, and, 

 when ripe, burfl the white pellicle and fall 

 out. 



ULVA plana orbicularis feffilis peltata coriacea. 

 Lin. fyji.nat. edit. i^. p. 817. ULVA fronde 

 dilatata fubfinuata, centre radicata. Sp. pL 

 P' 1^33' (Dillen. mufc. p. 45. /. 8. /. 3J 



Navel Laver. Jnglis. 



Sloke or Slake. Scctis. 



LIpon the fea rocks frequent, and often upon low 

 fhores, growing fingle. 



This is a wide membranaceous leaf, of a dark 

 dull purple color, expanded flat ; for the molt 

 part in a circular form, varioufly fmuated on 

 the edges, often perforated in the furface, and 

 generally fix'd to the rocks by a central root. 



Q.q q 4 The 



