354 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
if the punctate-verruculose form from Mexico belongs under that 
species. The germination of Ustilago cliloridicola, has not been 
reported. 
Ustilago Tillandsiae Patters. 
Ustilago Tillandsiae Tetters., Journ. Myc., 8: 135. 1902. 
Sori destroying inner flower parts, protected by enclosing bracts 
and perianth, forming an irregular dusty black spore mass about 
1-3 cm. in length ; spores olive brown, chiefly ovoid to spherical, 
thin walled, more or less collapsed or hemispherically cupped, smooth 
or with brittle epispore breaking up into thin polygonal areas, 7-13 /x 
in length. 
Hosts: Tillandsia Leiboldiana , Mex.; Tillandsia sp., Costa 
Rica (type). 
So far as can be determined from an examination of this fungus 
in a dried state it belongs to the smuts. A study of the method of 
spore production and germination is needed to finally settle its true 
position. Mrs. Patterson, of the Dept, of agriculture, Washington, 
D. C., tried to germinate the spores but was not successful in the 
attempt. 
Ustilago olivacea (DC.) Tul. 
Uredo olivacea , I)C., El. Fr., 6: 78. 1815. 
Caeoma olivaceum Schl., FI. Ber., 2 : 130. 1824. 
Erysibe olivacea Wallr., FI. Crypt. Germ., 2 : 215. 1833. 
Ustilago olivacea Tul., Ann. Sci. Nat., Bot., hi, 7 : 88. 1847. 
Ustilago caricicola Tr. & Earle, Bull. Torr. Bot. Club, 26 : 493. 1899. 
Sori in occasional ovaries, often at first more or less concealed by 
perigynium, forming rounded bodies 2-6 mm. in diameter, at first 
with firmly agglutinated spore mass but finally more or less dusty, 
usually with conspicuous threads intermingled with the spores; 
spores light olive brown, usually irregular, varying from linear to 
oblong or subspherical, but in some instances more regular and then 
chiefly subspherical or spherical, very minutely verruculose, usually 
5—9 /i, but most elongated occasionally 14 /x, in length. 
Hosts : Carex folliculata , Miss, (type U caricicola) ; C. poly- 
stachya , Mex.; C. turgescens, Fla.; C. utricidata , Wash., Wise.; 
Carex sp., Mex.; Jamaica. 
