104 SALMON: SUPPLEMENTARY 
M. EvonyM! (DC.) Sace. (Monograph, p. 125) 
Exsicc. add: Krieger, Fung. saxon. 1225 (in herb. Jaczewski). 
Hosts, add: Caragana frutescens. 
In Professor Jaczewski’s herbarium there occurs a most inter- 
esting mildew on Caragana frutescens Medic. from Russia, which 
with scarcely any doubt must be referred to JZ euonymi. The 
fungus forms when mature clinging floccose masses chiefly on 
the under surface of the leaf; the perithecia measure 100-130/ 
in diamete: ; the appendages are 12-24 in number, 3-5 times the 
diameter of the perithecium, flaccid and penicillate when mature, 
with the apex dichotomously branched ; asci 4-9, about 60 x 30/ 
3-5-spored, spores 22-23 x 11-12y. The branching of the apex 
is represented at /’. 9, f. 3-5, and agrees with that found in some 
forms of IZ. ewonymi on Euonymus Europacus ; although the ape* 
is perhaps scarcely so much branched as is usual for the species. 
The type of branching is, however, quite different from that found 
in MZ. Béumleri P, Magn., the only other species to which this 
fungus on Caragana frutescens approaches. I have seen only the 
single Russian specimen mentioned above ; and in this, although 
the perithecia are sufficiently ripe to contain asci with spores, the 
final branching of the apex of the appendages has not appar ently 
in many cases yet taken place. There is, however, an exact 
agreement between the branching shown by some of the append- 
ages and that which occurs in some examples of MM. ewonymt. The 
occurrence of MZ. exonymi, so long known only on Euonymus, OP 
another genus of host plants is a notable fact. JM. Caraganaé P. 
Magn. Bericht. deutsch. bot. Gesellsch. 17: 150. J. 9. Sf: ie 
1899, on Caragana arborescens is in my opinion not a Muro- 
sphacra at all, but a form of Exysiphe polygoni DC. (see mone” 
graph, p. 187). 
Serbinov ('76) has lately described from Russia (Gouv- 
Petersburg) a form of JZ euonymi as a new variety under 
name var. dorealis. I have not seen a specimen of the plant. 
The following diagnosis is given: ‘ Varietas hypophylla, 4 
euonymi (DC.) Sacc. mycelio differens persistente, comp*”’ 
floccoso, peritheciis gregariis,— Die von mir in einem alte? 
Garten Oranienbaums auf Fxuonymus Europaeus gefundene 
euonymi Sacc. hat ein interessantes Mycel. Dasselbe entwick 
St. 
