SALMON: Nores oN THE ERYSIPHACEAE 808 
ou on les observe. La loupe ne découvre aucun filament basilaire 
dans cette plante.”’ 
The discolorations here referred to are the work of mites, the 
bodies of which occur on the leaves ; the black rounded granules 
are their excrementa. ‘ 
Hazslinzky (2'7, p. 182) has described a fungus as follows (I 
am indebted to Professor A. Magécsy-Dietz for the translation 
from the Hungarian). — 
“ Calocladia bicornis (Wallr.) 4. rosae Wallr. Das Mycelium 
besteht aus sehr sparlichen Faden. Perithecien zerstreut und 
nicht zahlreich, mit 7-8 Asci; die Asci mit 7 Sporen Auf den 
Blattern der Rosa cinnamomea in det Umgebung von Eperjes, 
K6nigreich Ungarn.” 
It is impossible from this description to identify the fungus. 
Wallroth (Ann. Wett. Ges. 4: 238. 1819) described a species as 
Alphitomorpha rosarum, on Rosa cinnamomea, and later (Fl. Crypt. 
Germ, 2: 755. 1833) placed it as a variety under “ A. penicillata.”’ 
This plant of Wallroth’s has never been identified by later authors. 
Roumeguére (64) reported in 1880 the occurrence of an Erysiphe 
on Prunus Laurocerasus at Tarbes (Hautes-Pyrénées) France, 
which he named as a new species, Erysiphe Bertoloni. The author 
observed that the leaves of the Prunus were abundantly covered in 
July with Oidium Passerini Bertol. fils. The only description 
given of the Erysiphe runs as follows: “ Quelques péritheces (fines 
Ponctuations noiratres), analysés par moi m’out moutré dans 
chaque conceptacle 4 théques ovoides renfermant 5-7 pores de 
couleur brune. Je ne peux rapporter cette Erysiphee a aucune 
€spéce connue.” It is impossible to say from this descrip- 
ton what the fungus was, but the brown spores, if correctly de- 
Scribed, Preclude it from belonging to the Erysiphaceae. Dr. R. 
“try informed me that no specimen of “Z. Bertolini” is to be 
found in Roumeguére’s herbarium. 
-Spegazzini (79) had described an Evysiphe as a new species 
under the name of &. deserticola, with the following diagnosis: 
. Amphigena ; subiculum submembranaceum canescens arcte ad- 
watum, Peritheciis sparsis globosis atris, ascis paucis 2—4-spermis, 
"8 subcylindricis obtusis. Had. ad folia Hoffmanseggiae cujus- 
Obs. a Geserto Valle de Santa Maria, prov. Salta, Jan. ee 
ubiculum tenue e pulverulento membranaceo-subcrusta 
