68 
Mycologia 
Spores from Type Collections of Puccinia albiperidia and P. uniporula: 
EACH SORUS GIVEN SEPARATELY, 
Number of 
Teliospores 
Teliospores 
Urediniospores 
Urediniospores 
Uredinio- 
with i-cell 
with 1 hree 
spores 
Sorus 
( Uromyces) 
{^Pxiccinia) 
Pore 
Lquatorial 
Pores 
with Pores 
Uncertain 
r I 
0 
Not counted 
0 
0 
0 
2 
0 
231 
0 
0 
0 
3 
0 
317 
0 
0 
0 
4 
0 
363 
3 
0 
I 
5 
6 
0 
1 
886 
327 
i 4 
) 0 
0 
I? 
2 
4 
7 
29 
1325 
1 0 
0 
3 
8 
314 
3 
0 
I? 
0 
9 
422 
I 
0 
0 
0 
10 
697 
2 
0 
0 
I 
i I I 
Not counted 
0 
i ^ 
0 
0 
fI 2 
0 
142 
■ 17 
2 
s 
•3 
3 
853 
i 4 
5 
14 
3 
871 
3 
0 
I 
'5 
4 
1455 
5 
0 
I 
lib 
5 
19 
12 
I 
7 
Taking first the two columns of teliospores in the above table, 
it may be assumed that when a few only of either one- or two- 
celled teliospores occur in a sorus they are to be considered as in- 
cidental, possibly mesosporic. We may exclude from our present 
consideration four sori (8 to ii inch) from the type of P. albi- 
peridia, as belonging to another species, Uromyces nniporuhis, in 
termixed on the same leaf blades. 
Of the remaining seven sori taken from the type of P. albiper- 
idia, two of them (numbers 4 and 5) show a few urediniospores 
with one basal pore, and one sorus (number 6) shows one uredin- 
iospore with apparently three equatorial pores, while all others 
give no urediniospores whose pores could be made out with cer- 
tainty. 
Of the five sori (12 to 16 inch) taken from the type of P. uni- 
porula all show a number of urediniospores with one basal pore, 
and in addition three of the sori (numbers 12, 13, and 16) show 
urediniospores with three equatorial pores, as well as a number 
of spores whose pores could not be located. It is curious to note 
that in this type material of P. uniporula about one tenth of the 
urediniospores possess equatorial pores, and that these spores are 
intermixed in the same sori with the one-pored spores. 
So far as the morphological evidence goes, there appears to be 
