CRYPTOGAMIA ALG^. ^6y^ 



: .--■. Striated Laver, or Turkey-feather, ylnglis. 



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 ; of a dull green 

 color, cover'd with a white pellicle, tranfverfely 

 llreak'd with feveral brown concentric arcs, at 

 the diflance of one-tenth of an inch from each 

 other, and obfcurely reticulated by other ilraight 

 longitudinal lines. 

 The feeds are placed in the concentric arcs, and, 

 when ripe, burft the white pellicle and fall 

 out. 



umhilicalis ULVA plana orbicularis feffilis peltata coriacea. 

 2. Lin. fyjl.nat.edii. 13. p. 817. ULVA fronde 



dilatata fubfinuata, centro radicata. Sp. pi. 

 p. 1633. (Dillen. mujc. p. 45. /. 8. /. 3.J 

 Navel Laver. Anglis. 

 Sloke or Slake. Scotis. 

 Upon the fea rocks frequent, and often upon low 



Hiores, growing fingle. 

 This is a wide membranaceous leaf, of a dark 

 dull purple color, expanded flat •, for the mod 

 part in a circular form, varioufly finuaced on 

 the edges, often perforated in the furface, and 

 generally fix'd to the rocks by a centra l root. 

 Q^q q 4. The 



