18 PLANTS BAKERIANE. 



substratum not thickened, pseudoperidia scattered thickly 

 over the entire lower face of the spot but not crowded, 

 bright yellow, height about equalling diameter (400^), mar- 

 gin irregularly lacerate, recurved, cells loosely joined, 

 irregularly polygonal, walls thick, 4-5//,, conspicuously 

 roughened, 20-30/* ; spores subglobose, bright yellow, 

 minutely roughened, about 20/x; spermagonia honey-yel- 

 low, inconspicuous, barely 200/t. Mancos, 7,000 feet, July 

 7, on leaves of Berberis Fendleri, n. 381. This differs from 

 M. Berberidis in the larger, not thickened spots, the less 

 crowded perithecia, the larger and more ornate peridial 

 cells, and in its slightly roughened spores. 



^ECIDIUM HEMISPHERIC Peck, Bot. Gaz.iii.34. Durango, 

 6,500 feet, July 26, on Lactuca, n. 1072. These specimens also 

 show what seems to be Puccinia Prenanthis (Pers.), Fckl. II 

 & III. They are from leaves of the same plant as No. 1071. 



.ZEciDiuM HYDROPHYLLI Peck, Rep. N. Y. Mus. xxvi. 78. 

 La Plata River, 9,000 feet, July 11, on Hydrophyllum, n. 

 1067. 



^ECIDIUM INCURVUM n. sp. Amphigenous ; spots none ; 

 irregularly clustered, deeply buried, scarcely emergent, 

 opening of pseudoperidium very narrow, limb short, irregu- 

 larly lacerate, incurved, cells thin, striate, 40-5 Ox 20-2 5yu ; 

 spores globose or broadly oval, dark colored, epispore thick, 

 slightly echinulate, 40-50x20-25;* ; spermagonia not seen. 

 Chicken Creek, 9,000 feet, July 7, on Erigeron flagellaris, 

 n. 1055. 



JEciDiuM INTERMIXTUM Peck, Bot. Gaz. iv. 231. At 

 Limon, June 24, on Iva axillaris, n. 1037. 



uEciDiuM MONOICUM, Peck, Bot. Gaz. iv. 320. At 10,00'0 

 feet, on Mt. Hesperus, July 6, the host some species of 

 Arabia, n. 1086. 



