^5 NATURAL HISTORY BULLETIN. 



4. PucciNiA siLPHii Sc/nc. (1834. N. A. Fungi, p. 296. ) 

 4a. On Silphiuni laciniatum L., Decorah, la., Holway. 

 4b. On SJIpliimn pcrfoliatiim L., Decorah, la., Ilohvay, 

 4c. On stems of Silpliiuni perfoliatum L., Decorah, la.. 

 /lolivay. 



Orig. descr. "2929 — 25. p. Silphii, L. V. S., ex Carolina missa in foliis S. 

 trifoliati ab ami:o Denke. 



P. maculis minoribus purpureis. Acervis crassis pulvinatis, con- 

 fluentibus aggregatis, nigris. Sporidiis compactis, concoloribus." 



Spots scabious, numerous, scattered, concave, with a raised 

 rim; sori prominent, wart-Hke, compact, dull grayish-brown; 

 spores irregular, oblong-clavate, apex much thickened, con- 

 spicuously and angularly pointed, firm, dark-colored, but not 

 thick-walled, smooth, contents granular, 12 by 30-40 //; pedicel 

 tinted, firm, about the length of the spore. On the stems the 

 sori are large, black and confluent. Plate I., Figs. 4a, 4b, 4c. 



From the Atlantic west to Kansas. 



Exsic. Ellis, N. A. F. 1033 — 1462. Carleton, Uredinea^ 

 Am. 41. 



5. Puccini A congregta Ell. d- Hark. (1884. Bull. Calif. 

 Acad., p. 26.) On Heiichera inicrantJia Cascade Gulch» 

 Marin Co., Cal., VV. C. Blasdale. 



Orig. descr., from page 6, of reprint: Iljpoph vllous, but sta ning the 

 upper surface; sori densely clustered in the middle of a brown 

 spot, 4-6mm. in diameter, with a distinct subhvaline papilla at 

 apex, 13-15 by 3S-45U. Li\ing leaves of Hciichcra micrantlia, Ber- 

 keley, Cal." 



Our specimens are not quite the typical form, judging from 

 this description and specimens in N. A. F. 1463, which have 

 the spots red, and the sori circinate on brown spots, and not 

 confluent. The spores, however, are identical. 



Our description includes both forms. 



Hypophyllous; spots small, gray or brown, sometimes large 

 and reddish; sori brown, scattered, or sometimes crow^ded 

 and confluent, or circinate in the middle of a brown spot; 

 spores yellowish brown, oblong, slightly constricted, striation 

 extremely faint, apex thickened and rounded, i6-20,a by~ 



