PiTHYA 11 



when young, becoming irregular with age, externally pale, whitish 

 or yellowish-w^hite, surrounded at the base by a growth of white 

 mycelium, margin of the apothecium free or adnate to the 

 substratum, reaching a diameter of 12 mm.; hymenium plane or 

 convex, bright-orange; asci cylindric or subcylindric, gradually 

 attenuated below, reaching a length of 300-325 m and a diameter 

 of 15 /x; spores 1-seriate, at first granular within, later containing 

 one large oil-drop, reaching a diameter of 12-14 yu; paraphyses 

 slightly enlarged above, reaching a diameter of 3-4 y. at their 

 apices. 



On foliage and bark of species of Abies, Sequoia, and 



Lihocedrus. 



Type locality: Germany. 



Distribution: California; also in Europe. 



Illustrations: Boud. Ic. Myc. pi. 320; Gonnerm. & Rab. 

 Myc. Eu. 1:5,/. 4; Pers. Ic. Descr. pi. 11, f. 2; Pat. Tab. Fung. 

 /. 698. 



While this species has been recorded from North America, 

 most of the specimens examined belong with P. Cupressi rather 

 than here. The present form is larger and occurs on bark more 

 often than on foliage. The species is less frequent in America 

 than in Europe, so far as we can judge from the specimens 

 examined. 



2. Pithya lacunosa (Ellis & Ev.) Seaver, comb. nov. (Plate 4, 



FIG. 2.) 

 Barlaea lacunosa Ellis & Ev. Proc. Acad. Nat. Sci. Phlla. 1894: 347. 



Apothecia sessile, spreading over the substratum and closely 

 adhering to it, except the extreme margin which is free and 

 slightly elevated, circular or more or less irregular in outline, 

 reaching a diameter of 5 mm. to 1.5 cm., externally yellowish- 

 white and attached to the substratum by a white mycelium; 

 hymenium uneven, undulated or deeply lacunose, bright-orange; 

 asci cylindric above, tapering below into a long stem-like base, 

 reaching a length of 200-225 ijl and a diameter of 12-17 m; spores 

 1-seriate, smooth, reaching a diameter of 12-14 ;u, granular 

 within, hyaline; paraphyses gradually thickened above, reaching 

 a diameter of 3-4 /j. at their apices. 



On the bark of som.e species of Abies balsamea. 



Type locality: Notre Dame Bay, Newfoundland. 



Distribution: Known only from the type locality. 



