MILDEWS, RUSTS AND SMUTS 
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clusters, wall thick, usually composed of several layers, 
colourless or brownish, smooth or ornamented in various 
ways ; promycelium slender, bearing long, slender, promy¬ 
celium spores at the tip (as in Tilletia) which often conjugate 
in pairs. Conidia are present in some species, forming 
delicate white mould-like tufts on the leaves of the host- 
plant. 
The conidial condition was at one time included in the 
genus Cylindrosporhim belonging to the Hyphomycetes. 
Entyloma is closely allied to Melanotaenium, the latter, 
however, differs in forming black sori. 
Entyloma fergussoni, Plowr., Ured., p. 289. 
Spots circular, rather large, greyish on the under surface 
of the leaf, due to the presence of conidia ; spores subglo- 
bose or broadly elliptical, wall rather thin, pale brown, 
smooth, 10—15 p ; conidial cylindrical, continuous, 30— 
45 X 2.5—3 [JL. 
Syn. Entyloma canescens, Schroet. 
Protomyces fergussoni, Berk, and Broome. 
On Forget-me-not— Myosotis palustris, M. arvensis, 
M. caespitosa. 
Germany. 
Entyloma bicolor, Zopf; Plowr., Ured., p. 290. 
Forming rather large oblong spots, brownish above, 
greyish-white on the opposite side from the conidia ; spores 
irregularly globose or elliptical, 20—23 X 12- —18 (jl, wall 
gelatinous, of variable thickness, colourless, then brown ; 
conidiophores simple or branched, tufted, springing from a 
compact mass, conidia cylindrical, curved, base narrowed, 
tip rounded, sometimes septate, 10—22 X 3 [x. 
On Papaver rhoeas and P. duhium. 
Germany. 
Entyloma ranunculis, Schroet. ; Plowr., Ured., p. 290. 
Spots variable in size, often several on a leaf, whitish, 
then brownish, at first covered with the conidial stage ; 
spores globose, wall thin, pale brown, —16 [x ; conidia 
long, spindle-shaped or quite slender, 30—^40 x 2—3 (x. 
S^m. Gloeosporium ficariae. Berk. 
On Pilewort— Eicaria ranuncidus, common also on 
Ranunculus repens and R. sceleratus. 
France, Germany, Italy, and Austria. 
Entyloma trailii, Mass. 
Forming spots on the stem and leaves, small, whitish, 
while the conidia are present, afterwards brown and dry ; 
