CLINTON: NORTH AMERICAN USTILAGINEAE. 
471 
Entyloma fuscum Schrot. 
Entyloma fuscum Schrot., Cohn’s Beitr. Biol. Pflanz., 2 : 373. 1877. 
Entyloma fuscellum Schrot., Rab. Fungi Eur., 2495. 1878. 
Entyloma bicolor Zopf, Rab. Fungi Eur., 2496. 1878. 
Exsiccati: Entyloma fuscum Schrot., on Papaver sp., Seym. & Earle, 
Econ. Fungi Clinton Ust. Supp., C 19. 
Sori in leaves, forming discolored somewhat irregular areas usually 
limited by the veins, about 2-6 mm. or by confluence much more 
extended, often with conspicuous white hypophyllous outgrowths; 
spores when fully matured light yellow to chestnut brown, ovoid 
to subspherical or occasionally somewhat angled, provided (especially 
when young) with a conspicuously swollen gelatinous envelope, 
smooth, chiefly 13-19 p in length; the hypophyllous matted out¬ 
growths usually showing few conidia which are described as fusi¬ 
form, single celled or septate, 10-22 p x 3 p. 
Host: Papaver sp. (cult.), Me.; N. Brunsw. 
This European species has been reported from North America 
only on cultivated poppies grown along the northeastern coast- 
region. Possibly when more is known about its distribution it will 
be found on some of the native poppies of the western coast. In 
fact Entyloma Eschscholtziae is considered by some authorities as a 
possible form of this. The gelatinous envelope, remains of the 
hyphal thread, while rather characteristic is variable, evidently 
becoming less conspicuous with maturity. Literature : 39. 
Entyloma microsporum (Ung.) Schrot. 
Protomyces microsporus Ung., Exanth. Pflanz., 343. 1833. 
Entyloma Ungerianum DeBy., Bot. Zeit., 32 : 105. 1874. 
Entyloma microsporum Schrot., Rab. Fungi Eur., 1872. 1874. 
Exsiccati: Entyloma microsporum (Ung.), on Ranunculus septentrionalis, 
Ell. & Ev., Fungi Col., 542, Ell., N. A. Fungi, 1488 (reported on R. repens ), 
Seym. & Earle, Econ. Fungi Clinton Ust. Supp., C 25, C 26. 
Sori in leaves, forming hard fusoid to hemispherical pustules, often 
concavo-convex, 2-5 mm. in length, usually distinct, whitish or even¬ 
tually reddish brown; spores hyaline or slightly tinted, oblong or 
ovoid to subspherical or polyhedral, with a very thick usually irreg¬ 
ular epispore which is often somewhat crenate, 12-22 p in length ; 
conidia not known. 
