Additional Species. 
171 
351. Leptothyrium dryinum, Sacc. 
On Quercus rubra. L. Racine. 
352. Leptothyrium periclymeni, Desm., var. America 
num, E. & E. 
On Lonicera oblongifolia , Muhl. Racine county. 
On Lonicera , sp. Three Lakes. The scutellate 
perithecia are absent from the specimens collected 
at Wind Lake in Racine county, but the fungus 
is evidently the same as in specimens from north¬ 
ern Wisconsin and elsewhere in which they are 
present. In none of the American specimens that 
I have seen are the perithecia as well developed 
as in those from Europe. 
353. Oidium pirinum, E. & E. 
On Pyrus coronaria , L. Racine. Rare. 
354. Oidium radiosum, Lib. 
On Popidus tremidoides, Michx. Racine. 
355. Pestalozziella subsessilis, E. & E. 
On Geranium maculatum, L. Madison. (Trelease.) 
356. Phleospora oxyacanth^e, (Kze. & Schm.) 
On Crataegus , sp. Racine. Abundant. 
357. PHYLLOSTICTA ASTERICOLA, E. & E. 
On Aster umbellatus, Mill. Kenosha county. Rare. 
358. Phyllosticta ampelopsidis, Ell. & Martin. 
On Ampelopsis quinquefolia , Michx. Kansasville. 
359. Phyllosticta cruenta, Fr. 
On Umdaria grandiflora ) Smith. G-enoa Junction. 
On Smilacina , sp. Walworth county. 
360. Phyllosticta desmodii, E. & E. 
On Desmodium , sp. Walworth county. 
361. Phyllosticta fagicola, Ell. & Morgan. 
On Fagus ferruginea , Ait. Racine. Scarce. 
362. Phyllosticta gentian^ecola, Fr. 
On Gentiana Andrewsii , Griseb. Racine. Abun¬ 
dant. 
