Parasitic Fungi of New Jersey 163 



the roughened bark, rupturing along the sides and falling away; 

 ^ciospores pyriform, oblong-pyriform, or obovate, 19-24 x 32-66 /*, 

 usually acuminate below ; wall 2-3 [i thick, rather finely and closely 

 verrucose with low papillae, contents orange-yellow when fresh." 

 Mycologia, v. 6, p. 126-129 (1914). On Pinus rigida. 



"II. Uredinia hypophyllous, scattered or somewhat gregarious, 

 round, very small, about 0.1 mm. across, dehiscent by a central rup- 

 ture, soon wide open and naked, pulverulent ; peridium rather firm, 

 cells polygonal, at the sides with walls uniformaly thin about 1 /* at 

 the top with the inner walls greatly thickened, up to 10 /*; uredinio- 

 spores oval or obovate, 16-21 by 23-31 /*; wall colorless, rather thick, 

 2.5, sparsely and finely echinulate. 



"III. Telial columns hypophyllous, filiform, 40-100 ix thick, 0..S-2 

 mm. long; teliospores fusiform-oblong, 13-17 by 28-56 ix, obtuse at 

 both ends; walls nearly colorless, smooth, thin, 1-1.5 u. (On Comp- 

 tonia sp.). North American Flora, v. 7, p. 121 (1907). 



930. Peridial cells, 1/12. 931. Aeciospores, 1/12. 932. Uredospores, 1/12. 

 933. Teleutospore, 1/12. 



Cronartium ribicola Fisch. (= Peridermium strobi Kleb.). 



"O. Pycnia caulicolous, scattered, honey-yellow, forming minute 

 bladdery swellings, exuding a sweet fluid. 



Aecia caulicolous, forming globose galls ; peridium inflated, rupt- 

 uring at sides, thick, membranous, cells isodiametric, smooth or 

 nearly so on outer surface, verrucose on inner surface except an 

 elongate smooth spot, 2-2.5 u thick, on the smooth side 3-3.5 fi thick. 

 (On Pinus strobus.) 



"II. Uredinia hypophyllous, thickly scattered in orbicular groups 

 1-5 mm. across, round pustular, smafl, 0.1-0.3 mm. across, dehis- 

 cent by a central opening, at first bright yellow ; peridia delicate, in- 

 ner walls thicker than the outer walls; urediniospores ellipsoid or 

 obovate, 14-22 by 19-35 fx; wall colorless, medium thick, 2-3 /*, 

 sparsely and sharply echinulate." 



"III. Telia columns hypophyllous, cylindrical, 125-150 /t thick, 

 up to 2 mm. long, curved, light orange-yellow becoming brownish; 

 teliospores oblong or cylindrical, 8-12 by 30-60 fi roimded or obtuse 

 at both ends; wall nearly colorless, smooth, rather thick, 2-3 fj.. (On 

 Ribes sp.) North American Flora, v. 7, p. 122 (1907). 



934. Uredospores, 1/12. 935. Teleuto spores, 1/12. 936. Portion of leaf of 

 currant showing three uredo sori and four teleutosporic columns, 2/3. 



