On the Lichens near New- York. y 



var. fi. pulverulenta. Smooth bark. Apothecia flexu- 

 ous ; disk gray pruinose. 



y. cerasi. On Beech. Crust shining ; apothecia 

 straight and parallel. 



2. betuligna. Id p. S3. On Betula. Scarcely more than 



a variety of the last. 



3. serpentina. Id. p. 83. Smooth bark. Crust very white ; 



apothecia elongated, crowded, and waved. 

 f f Apothecia without a margin. 



8. Verrucaria. 



1. punctiformis. Id. p. 87. Old bark. Apothecia small, he- 



mispheric, seldom papillated ; nucleus subglobose. 



2. analepta. Id. p. 87. Ibid. Apothecia conoid, papillated ; 



nucleus compressed. Larger than the preceding. 



3. epidermidis. Id. p. 89. Smooth bark of limbs. Apo- 



thecia very minute, flattened, roughish. 

 var. (3. cerasi. On Betula. Crust shining, of a silvery hue. 



4. stigmatella. Id. p. 89. Bark. Apothecia convex, not 



papillated. 

 var. /3. lactea. Ibid. Crust milky white, sublucid. 



5. gemmata. Id. p. 90. On bark. Apothecia shining, pa- 



pillated. 



6. composita. Schwz. mss. On Carpinus and Betula. Crust 



yellowish brown, very smooth, shining, and border- 

 ed by a black line ; apothecia small, immersed, and 

 clustering in long irregular dark spots. Fig. 4. 



9. Endocarpon. 



1. smaragdulum, Ach.ip.98. On rocks. Frond composed 



of very small, detached, scale-like lobes, of a light 

 greenish or olive colour. 



2. tephroides (d.polythecium. Id. p. 99. On rocks. Frond 



adnate like a Verrucaria, cracked, of a light liver 

 colour. 



3. Hedwigii. Id. p. 99. On rocks. Fronds detached like 



No. 1. but larger. 



B 



