1888. | BOTANICAL GAZETTE. 31 
<ardo’s Sy//oge, vol. i, the number of appendages is said to 
~ be *S about 28,’ and ihe number of asci is not stated. Ina 
recent examination of South American specimens from Prof. 
& Spegazzifi, I found a perithecium (the only mature one ex- 
amined) containing 50 two-spored asci, and surrounded by 
over 200 appendages, 114-120 X 6-7 , hyaline, continuous, 
with attenuated, involute tips. Panthecia 225-230 » in diam- 
eter 
‘* The foregoing notes are also applicable to specimens of 
Uncinula Poy danaaes B. & C. in Ravenel’s Fungi Carolmiant. 
€ species is remarkable for its numerous asci and append- 
ages, tine it seems unnecessary, on this account, to make it 
= the type of a new genus. Possibly, the statement that the 
number of appendages is ‘ about 28” is a typographical error 
] for ‘ about 228,’ which would be nearer the actual number. 
a Additamenta, published in 1886, Sa 
_ €ver, still adheres to his original name of Pleocheta Curtist 
acc. an ez., even in a description ap eae re-written 
_ from that in the Yournal of Mycology, as follow 
& 1a 225-230 in diameter, appendages a tora about 200, 
hyaline, continuous, apex attenuated, incurved, asci about 
30, two-spored.’ 
BS In the specimens before us from Mississippi and Carolina, 
EC shown in fig. 1. Usually, but one such spot occurs on a leaf, 
4 
ia, which are irregularly scattered over the mycelium, are 
much larger than in any other American Uncinula; fresh 
specimens, collected in November, measuring 275-2 
Sometimes reaches 175 ». Older specimens of U. polycheta 
_ Measured 250-275 ». The appendages ray from 250 to 300 
©r more, Berkeley and Curtis’ ‘‘ about 28” probably being 
4 misprint for ‘about 280.” On patie perithecia the 
ee ages are all clavate, as described by Saccardo, but 
on mature specimens they become longer, 122-150 ; the 
avate form gradually merges itself into the coiled attenuate 
und this change in form exhibited on every leaf examined. 
€ ‘appendages clavate’’ of Saccardo and the ‘* append- 
ages curled at the tips’ of Cooke are entirely harmonized by 
‘this knowledve. 
he asci are broadly clavate, sometimes nodulose’ at the 
- the mycelium is hypophyllous, in irregular whitish spots, as. 
and the mycelium is by no means abundant. The perithe- | 
# ID 
diameter, U, spiralis is usually 85+100/, and U. circinate 
tips siown in “fig. 6. Our material was abundant, and we 
4 
wall rather thick, quite — in Braye one ~agypare “ 
