286 The North American Cup-Fungi 



2. Arachnopeziza delicatula Fuckel, Symb. Myc. 304. 1869. 

 Belonidium delicatulum Sacc. Syll. Fung. 8: 499. 1889. 



Apothecia gregarious, or scattered, seated on a delicate, 

 white, arachnoid subiculum, at first globose and closed, finally 

 expanding, reaching a diameter of 1-2 mm.; hymenium concave, 

 reddish-brown; asci clavate-cylindric, reaching a length of 80- 

 100 ju and a diameter of 8-10 ju, 8-spored; spores elongated, 

 clavate, slightly curved, simple, or becoming sparingly septate, 

 reaching a length of 40 /x and a diameter of 3.5-4 ju; paraphyses 

 filiform, slightly enlarged above, reaching a diameter of 3 ix. 



On wood and bark. 



Type locality: Europe. 



Distribution: Quebec and Michigan; also in Europe. 



Illustrations: Papers Mich. Acad. Sci. 20: pi. 15, f. 1. (as 

 Gorgoniceps delicatula (Fuckel) Hohn.). 



3. Arachnopeziza aurata Fuckel, Symb. Myc. 304. 1869. 



Belonidium auratum Sacc. Michelia 1: 66. 1879. 

 Tapesia aurata Massee, Brit. Fungus-FI. 4: 299. 1895. 



Apothecia gregarious, sessile, at first closed, then expanding, 

 externally yellowish, clothed with hairs, reaching a diameter of 

 .5 mm., on a thin subiculum; hymenium a little darker than the 

 outside of the apothecium; hairs long, cylindric, or tapering 

 gradually toward the ends, septate, reaching a length of 60-85 fj. 

 and a diameter of 4 /x; asci clavate, the apex somewhat pointed, 

 reaching a length of 96 /x and a diameter of 7 fx, 8-spored ; spores 

 filiform, or slightly clavate, becoming multiseptate, slightly bent, 

 2.5-3 X 65-75 n; paraphyses very slender, hyaline, occasionally 

 branched. 



On wood or the inside of bark. 



Type locality: Europe. 



Distribution: Ohio; also in Europe. 



4. Arachnopeziza Arctostaphyli Cash, Mycologia 28: 247. 1936. 



Apothecia sessile, on sparse subicle of hyaline mycelium, at 

 first subglobose, becoming patellate, cream-colored to light-buff 

 when dry, .4-. 7 mm. in diameter, attached at the margin by 

 delicate, hyaline hairs; asci clavate, often arculate, narrowed 

 above, attenuated toward the base, reaching a length of 100-1 15 /x 

 and a diameter of 10-12 n, 8-spored ; spores irregularly fasciculate, 

 many-guttulate, straight, or curved, 7-septate, 2.5-3 X 65-80 yu; 



