BRIEFER ARTICLES. 
A NEW TILLETIA PARASITIC ON ORYZA SATIVA L. 
(WITH FIGURES 1-4). 
: Doors, sae ik Mr. Reid Whitford, United States Engineer, 
. el ai arolitia, sent the writer a few rice plants affected 
eo the . ae Te plants were taken from a plantation of 250 
By our other eae river, about six miles above Georgetown. Three 
. anters on eae same river had rice fields affected with 
ne oe pe: W hitford also sent packages of rice flour ground 
Be crowed - eg rice. The flour made from the diseased 
ae Hig ed dark color. When examined under the micro- 
I pores f Mg found to contain numerous large brownish-black 
The a... = cause of the dark coloration. 
ies. Th spikelets could hardly be distinguished from the nor- 
Be the ci a greater number of them showed no signs of disease. 
ade = 9 es were broken apart, the affected ovaries were found to 
| a granular mass of spores. 
tke ia pes S. Earle, of Auburn, Alab 
: : entification of the smut fungus, 
a @ Scrib., first described by S. M. ‘Tracy and F. 
(es 
ama, has kindly assisted me 
and found it to be Zilletia 
S. Earle as fol- 
I ‘ 
eine sepia transforming them into black curved horn-shaped 
traces of the oO 1™ in length, the outer covering firm in texture, showing 
Ptatk fuscous ey ar structure of the ovary; spores large, spherical, 22-26 BL, 
j fnvelope > densely oper when mature, with a hyaline 
Covered by ea more in thickness, the surface © 
Biacity of the ute but deep alveolations, this structure 
at the peripher mature spore, when the thin alveola ; 
: ing almost le ies they appear like numerous spinous 
ft tint a the hyaline envelope. The remains of t 
Mississippi a. the tet gaa head spores as a false pedicel. On various grasses, 
, Illinois, Missouri, and Washington, D. 
T 
Torr. “oie S. M. and Earte, F. S., New species of fungi from Mississippi- Bull. 
+0) . Club 23: 210. 1896. 
467 
