190 BOTANICAL GAZETTE. [ August, 
** PopOSPHARA MINOR //owe. Conceptacles scattered or 
crowded; appendages 10-20, as long or a little longer than 
the diameter of the conceptacles.!—Leaves of Spirza.” 
‘ycelium amphigenous, dense on upper surface of leaf, 
sparing, arachnoid below. 
cavity. 
_ The specimens which have furnished the essential mate- 
rial for the notes recorded in this paper, and some of which, 
accompanied by their respective numbers, are figured in the 
plate, were derived from the following sources: 
0.1. Podosphera minor Howe, on Spiraea tomentosa, 
from herbarium of E. C. Howe: a part of the original mate- 
rial from She species P. minor was described. ae 
JNO. 11. “Microsphera fulvofulcra Cooke,” ‘on Spire 
Salicifolia, from Piocadensc, Rt. No. 204 ; collected by 
NN. M. Mason.” Described in Grevillea, v,110. Dr. Hark- 
ness, from whom it was received, says it is a part of the 
original material from which the ‘JZ. fulvofulcra Cke.” was 
described and named. The collection number, ‘* 204,” 08 the 
label of II is, moreover, identical with the number accom 
_panying the description in Greviliea. The appendages are 
somewhat fewer and longer than in I, and the spores smaller. 
- ‘Microsphera Sulvofulcra Cooke,” from herb. 
tones knegs ; communicated by J. B. Ellis; on mS 
dee-led saad originally from E. N. Amer. i i 
nieie i clinpuiae of the host is strongly hirsute. — a Il, 
Se etecter i by aless dense m celium than ra aa 
si aah number of appendages (often 21), which are shor” i 
eavier branches, presenting in all respects a more Via™ 
1 The remain : ation 204 
Measurement of a “i dine he description has resulted from careful examinatio! : 
umber of specimens to give a basis of characterization. 
