374 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Hume practically gave no description of his species. Comparing 
the type specimens with those of Griffith’s type there seems to be 
no practical difference between the two. The spores are somewhat 
like those of Ustilago echinata , but the general character of sorus 
seems to be different, the latter having, apparently, more isolated 
striae on the open leaves. The species described here is peculiar 
because of the thoroughness with which it infects the enfolded 
leaves and dwarfs the internodes, evidently preventing the forma¬ 
tion of the panicles. 
Ustilago Tulipae (Heuffi) Wint. 
Caeoma Tulipae Heufl., in sched. 
Urocystis pompholygodesf. Tulipae Rab., Fung. Eur., 1099. 1866. 
Ustilago Heufleri Fckl., Symb. Myc., 39. 1869. 
Ustilago Erythronii Clint., Bull. Buff. Soc. Nat. Sci., 1 : 67. 1873. 
Ustilago Tulipae Wint., Rab. Ivrypt. FI., I 1 : 8(5. 1881. 
Ustilago Ornithogali f. Erythronii De Toni, Syll. Fung., 7 2 : 452-453. 1888. 
Exsiccati: Ustilago Erythronii Clint , on Erythronium Americanum, 
Shear, N. Y. Fungi, 83; Ustilago Ornithogali Selim. & Kze., on Erythron¬ 
ium Americanum , Ell., N. A. Fungi, 1095 ; Ustilago Ornithogali f. Ery¬ 
thronii (Clint.), on Erythronium Americanum , Ell. & Ev., Fungi Col., 471, 
Rab., Fungi Eur., 4207. 
Sori in leaves, forming conspicuous rounded, or often elongated 
pustules, covered by thin whitish membrane which upon rupture 
discloses a somewhat dusty black spore mass ; spores dark reddish 
brown, ovoid or ovate to spherical, usually regular, thick walled, 
smooth but inner wall provided with more or less evident projec¬ 
tions extending into outer lighter colored part, 13-22 p in length. 
Host: Erythronium Americanum , Mo., N. J., N. Y. (type XJ. 
Erythronii) , Penn. 
This form on Erythronium, described as distinct by Judge Clinton, 
has been placed by some botanists as a variety or even as a synonym 
of l stilago Ornithogali of Europe. An examination of all of the 
specimens in the Harvard cryptogamic herbarium on Gagea (there 
being no specimens there on Ornithogalum) shows that these differ 
from those on Erythronium in the lighter colored much more irreg¬ 
ular spores whose inner wall lacks the irregular projections ( poren - 
kanalen of Winter). The American form, however, does agree 
entirely with the European species Ustilago Tulipae as described 
