242 * Journal of Mycology [Vol. & 
tain the hypothesis of Mycoplasm until a better solution should 
be proposed/’ 
Cercosporites sp., a' new Fossil Fungus, by Ernest S. Sal¬ 
mon (Jour. Bot. 41:127-130, April 1903), is the title of a critical 
review of “Microflora e Microfauna nel disodile di Melilli in 
Sicilia,” L. Pampaloni (Rendiconti della R. Accad. dei Lincei, 
111250-1, 1902). In the latter paper two genera of Erysiphacese 
are described, namely, Uncinulites (U. baccarini) and Erysiphites 
(E. melilli). After examination of the material Mr. Salmon 
concludes that the portion called by Dr. Pampaloni a perithecium 
consists of a single cell—and hence neither of these fossil plants 
have anything to do with Erysiphacese. He ventures no further 
interpretation of the Erysiphites, “whether of animal or vegetable 
origin,” but the fungus called Uncinulites he regards as referable 
to the genus Cercospora agreeing in some respects with Cercos- 
pora acerina described by Hartig. Salmon concludes his article 
as follows: “The following diagnosis may be given of this fossil 
fungus: Cercosporites sp. Hyphse myceliares filamentosae sin- 
gulatim repentes dilute brunnese septatse 5-8 u diam. hinc inde in 
cellulas magnas 15-23 u diam. maturitate opacas atrobrunneas 
plus minus globosas 3-6-catenulatas vel raro biseriatim aggregatas 
probabiliter pro sclerotiis habendas subito inflat.” 
On Specialization of Parasitism in tpie Erysiphacese, 
by Ernest S. Salmon, referred to previously in these Notes, is 
published in the Beihefte zum Botanischen Centralblatt, Band 
XIV, Heft 3, pp. 261-315, pi XVIII. It is a full account of work 
done, methods, and additional results, pertaining to the question 
of ‘biologic forms/ and to this comprehensive article the inter¬ 
ested reader is referred as no brief outline would be satisfactory. 
A Bibliography of ten entries is included. Convenient tables 
give a synopsis of the work done by the author. 
Fungus Enemies of Apple, Pear and Quince, by F. L. 
Stevens, published in the N. C. Agr. Exp. Sta. Bulletin No. 183 
(pp. 64-82), April 1903, gives a popular account with several 
text-figures of the common fungous parasites as Apple Scab, Fire 
Blight, Rust (Gymnosporangium), Bitter-rot, Pear Scab, Leaf 
Spot (Septoria), Leaf Blight (Entomosporium), etc. 
In the Oesterreicitische Botanische Zeitschrift for 
1903, Nos. 4-8, A. Zahlbruckner publishes an article entitled 
Vorarbeiten zu einer Flechtenflora Dalmatiens. Several new 
species are described. 
P. Dietel Transfers Uredo lzeviuscula D. & H., which 
was published in Erythea, 2:127, based upon material collected in 
California on Polypodium californicum, to Thekopsora. A' re¬ 
examination of the material revealed teleutospores; the name 
now given is Thekopsora lseviuscula D. & H. See Annales My- 
cologici, 1:4i6. Sept. 1903. 
