On the Lichens near New-York. 15 



16. rutilans. Id. p. 210. Ibid. Frond deep yellow, whitish 



underneath ; apotheeia orange. 



17. venusta. Id. p. 214. Bark, and among mosses. Frond 



deeply laciniated, segments narrow ; margin of the 

 apotheeia leafy. 



18. stellaris. Id. p. 216. Trunks. Frond stellate, segments 



convex, with whitish fibres beneath; apotheeia black, 

 pruinose. 



19. ccesia. Id. p. 216. Trunks and rocks. Segments nar- 



row, and more distant than the last. 

 var. (3. dubia. Rocks. A very minute variety, resem- 

 bling frost work. 



20. cycloselis. Id p. 216 Trunks. Frond stellate; seg- 



ments short, broad, subconnate ; apotheeia blackish. 



21. ulothrix. Id. p. 217. Ibid. Like the preceding; apothe- 



eia, externally at the base, covered with black bristles. 

 §§ Frond with segments thickened at the apex. 



22. physodes. Id. p. 2! 8. Rocks, trunks, and on earth. 



Frond naked and shining beneath. 



23. colpodes. Id. p. 219. Ibid. Frond spongy, and rag- 



ged beneath. 



17. Borrera. 

 1. tenella. Id. p. 221. Bark and on the earth. Like a Par- 



melja. Frond white; segments narrow, pinnatifid, 



convex and ciliated at the apex. 

 -• furfuracea. Id. p. 222. Bark. Much like EvERNiA^ru- 



nastri. Segments of the frond channeled beneath, and 



bluish black. 



3. chrysophthalma. Id. p. 223. Very common on trunks. 



Frond yellow, with orange apotheeia. 



4. exilis ? Id. p 225. Ibid. Frond minute, white, segments 



attenuated and capillary. Perhaps only a variety of 

 the preceding. 



IS. Cetraria. 

 1. ciliaris. Id. p. 227 Fences and stones. Frond with 

 segments fringed, and ciliated with strong rigid fibres. 



