June 1902 ] Cultures of Uredineae in 1900 and 1901 
53 
Puccinia angustata Pk. May 3, teleutospores from Scirpus 
atrovirens were sown on Lycopus americanus; May 11, Sper- 
mogonia appeared, and May 20, aecidia. 
Puccinia poculiformis (Jacq.) Wettst. May 2, teleutospores 
from Cinna arundinacea were sown on Berberis vulgaris; May 
13, spermogonia appeared, and May 22, aecidia. 
Of the remaining four species, all Carex rusts, the clues 
which led to successful cultures were obtained in the field, and 
have been mentioned and explained in an article in the Botanical 
Gazette for January of the present year. For three of these 
species it seems necessary to propose new names. All are yet in¬ 
sufficiently studied to determine their exact boundaries. 
Puccinia albiperidia sp. nov. 
O. Spermogonia amphigenous, small, pale orange. 
I. Aecidia hypophyllous, small in circular clusters; substratum 
scarcely thickened; peridia white, low, margin incised, reflexed; spores 
pale yellow when fresh, subglobose, 15-20 ju, in diameter; wall thin, 
smooth. 
II. Uredosori hypophyllous, small, round or oblong, soon naked; 
uredospores oblong, small, echinulate. 
III. Teleutosori hypophyllous, globose or oblong, pulvinate, dark 
brown. Teleutospores oblong-cuneate, 17-24 by 32-45 ju. ; apex semi¬ 
circular or obtuse, thickened to half the length of the upper cell; side 
walls thin, slightly or not constricted; pedicel slender, colored, as long 
as the spore or shorter. 
On Ribes cynosbati L. grown June, 1901 from teleutospores collected 
on Carex pubescens Muhl, Lafayette, Ind., April 30, 1901. 
This species is characterized by the white or nearly white 
aecidia, which may be called Aecidium albiperidium. They are 
in marked contrast with the deep orange aecidia that are so 
abundant throughout North America on various species of Ribes. 
The only field collection known to the writer is one on Ribes 
gracile made at Decorah, Iowa, by E. W. D. Holway on June 
2, 1901. When dry and faded the two forms of aecidia are much 
alike. Cultures were made as follows: 
May 16, teleutospores from Carex pubescens sown on Aster panicu- 
latus; no infection. 
May —, teleutospores from Carex pubescens sown on Ribes cynosbati; 
May 30, spermogonia; June 9, aecidia. 
Puccinia caricis-erigerontis sp. nov. 
O. Spermogonia epiphyllous, prominent, golden yellow. 
I. Aecidia hypophyllous, in circular clusters; substratum slightly 
thickened; peridia short, much divided and recurved; aecidiospores yellow 
when fresh, isodiametric, 12-15 fi in diameter, wall thin, minutely 
tuberculate. 
II. Uredosori hypophyllous, small, oblong, tardily naked; uredos¬ 
pores brownish-yellow when fresh, oval or obovate, small, 12-18 by 
16-22 fx wall thin, thickly echinulate, pores 3 or 4 scattered. 
