an 
1894. ] Notes on Ustilaginee. 187 
name D. Wintertana for the D. punctiformis Winter, deciding 
to retain Schreeter’s name for Protomyces punctiformis Niessl. 
The writer, however, has shown® that Protomyces punctt- 
formis Niessl is not a Doassansia since the sori lack the cor- 
tex which Cornu considered the distinguishing mark of the 
genus, but that it is to be referred to the genus Entyloma. 
Consequently, the name Doassansia punctiformis belongs to 
the Australian species, of which, as Prof. Magnus kindly in- 
forms me, there is no specimen in Winter’s herbarium. This 
Prevents determining accurately whether D. punctiformis 
inter, in turn, is a true Doassansia or not. 
- Gossypri Lagerheim.—Through the kindness of Prof. 
Lagerheim the Writer has been able to examine specimens of 
this species. The sori occur in the spongy parenchyma of 
the leaf and are at first globular and wholly immersed. This 
's apparently the state seen by Prof. Lagerheim. Later how- 
ever the sori break through the epidermis, the coating of 
hyphae bursts open, and the spores are seen to be arranged 
in vertical rows, supported below upon sterile cells. The 
Structure is not that of a Doassansia but more like that of 
Some species of rust. The species may be referred provision- 
ally to the genus Chrysomyxa, as Chrysomyxa Gossypii 
(Lagerh. ), : 
CORNUELLA LEMN# Setchell has been detected by the 
Writer at Providence, R. I. and New Haven, Conn. A care- 
ful search among the dying fronds of Spirodela will probably 
Pies SPOres from the fresh material germinated readily in 
2.5 cae Save rise to promycelia 12—1 7 in length and about 
ein diameter. Each promycelium produced three, four - 
bingo which were about 154 long, of almost rae 
each “f (about 2M) throughout their length, and blunt a 
“Rip € sporidia produced germ tubes without fall- 
the Promycelia. No conjugation was observed but 
ditions as that shown in figure 8 seem to indicate 
place. Spores sown from dried material in late 
ne In November failed to germinate 
——_OMA CRasToPHILUM Sace. is the species to which 
— Botany, 
of 
6; 38. : 
4~Vol, XIX—No. : aA, 
