Tapesia 193 



exclusive of the basal cell and bearing three appendages at the 

 opposite end. 



Type locality: Pineola, North Carolina. 



Distribution: Known only from the type locality. 



Illustrations: Mycologia 34: 299,/. 1. 



ExsiccATi: Ellis & Ev. Fungi Golumb. 331 (as Dermatea 

 John to). 



Doubtful Species 



Cenangella Ericae (Fries) Rehm in Rab. Krypt.-Fl. 1'': 232. 1889; 

 Cenangium Ericae Fries, Syst. Myc. 2: 188. 1822. This species was described 

 as the perfect stage of Pestalotia Callunae Ces. on Calluna. One specimen on 

 Ledum groehlandicum seems to agree with the one reported on Calluna. This 

 is the only North American specimen seen. If the reported connection is 

 correct this species should be transferred to the genus Pestalopezia. 



37. TAPESIA (Pers.) Rehm in Rab. Krypt.-Fl. P: 574. 1891. 

 Peziza [subg.] Tapesia Pers. Myc. Eu. 1: 270. 1822. 



Apothecia superficial, seated on a conspicuous web of white, 

 or dark-colored mycelium, minute, usually less than 1 mm. in 

 diameter, soft and wa.xy, scutellate, or discoid, the excipulum 

 dark; hymenium often at first light-colored, becoming dark; asci 

 cylindric, or clavate, 4-8-spored; spores ellipsoid, fusoid, or 

 elongated, never or rarely septate, hyaline; paraphyses filiform. 



T\pe species, Peziza fusca Pers. 



This genus differs from MoUisia onh* in the presence of the 

 subiculum. 



Apothecia seated on a brown or black subiculum. 

 On wood or branches of various kinds. 

 Spores relatively large, 12-14 ix long. 

 Spores mostly less than 12 m long. 

 On swollen branches of Bigelovia. 

 Not on swollen branches. 

 On old decaying wood. 



Hymenium white or yellow. 

 Hymenium brown. 

 On recently killed branches. 

 On stems of Rosa. 

 On twigs of Ribes. 

 On branches of Sambucus. 

 On branches of Carpinus and Betula. 

 On leaves of Abies balsamea. 

 Apothecia on a white mycelium. 

 Spores 2-3 X 7-10 n, on Betula. 

 Spores 7 X 15 m, on grass and old wood. 



