OF ARTS AND SCIENCES. 129 



Both sides of leaves of Querctcs virens [agrifolia'^'\, California. Re- 

 markable for the size and color of the sporidia. 



161. DoTHiDEA PERMEANS, Berk. & Curt.: maculis irregularibus 

 substellato-orbiculatis nigris totam matricem permeantibus elevato-sub- 

 rugosis ; ostiolis indistinctis. 



On leaves, Nicaragua. 



162. D. TENUIS, Berk. & Curt.: picea; stromate subpenetrante 

 tenui supra e cellulis prominulis minute granuloso ; sporidiis hyalinis 

 oblongo-clavatis. 



On leaves of Bauhinia, Nicaragua. — Allied to the preceding. 



163. D. PLATTPLACA, Berk. & Curt.: stromate tenui nigro totam 

 mati'icem penetrante supra nitido subtus fertili opaco ; cellulis super- 

 ficialibus. 



With D. permeans. — In some respects resembling S. demersa, Corda. 



164. D. INCLUSA, Berk. & Curt.: stromate punctiformi margins e 

 matrice formate incluso ; cellulis subsolitariis ; sporidiis fusiformibus 

 ellipticis. 



On leaves of Jacquinia, Nicaragua. 



165. AsTERiNA VELUTiNA, Berk. & Curt.: maculis velutinis orbi- 

 cularibus fibris erectis subulatis obsitis ; peritheciis minutissimis fre- 

 quentibus ; ascis oblongis ; sporidiis oblongis uniseptatis. 



On leaves. Loo Choo Islands. 



166. A. OSTIOLATA, Berk. & Curt.: punctiformis, niger; subiculo 

 nuUo nisi peritheciali ; ostiolo distincto papillteformi. 



Upper surface of leaves, with Cephaleuros virescens ; Nicaragua. 



167. A. SEPULTA, Berk. & Curt.: subiculo repente epidermide diu 

 tecto ; peritheciis minutis ; ascis oblongis ; sporidiis uniseptatis. 



On leaves of some Laurinea, Japan. 



168. A. MEGALOSPORA, Berk. & Curt.: subiculo parcissimo fim- 

 briante ; peritheciis magnis hiantibus ; sporidiis maximis uniseptatis. 



On living leaves, Bonin Islands. — Resembles A. Azarrce, Lev. 



169. A. CONGREGATA, Berk. & Curt.: peritheciis minimis nitidis 

 congregatis ; subiculo parcissimo ; ore rotundo ; ascis helvolis ; sporidiis 

 angustis. 



On dead leaves, Nicaragua. — Has the habit of Sph. maculcEforynis. 



170. A. BULL ATA, Berk. & Curt. : maculis orbicularibus e matrice 

 elevata enatis, fills in stratum compactum tenue hie illic cellulosum 

 intertextis ; peritheciis proniinulis. 



VOL. IV. 17 



