1892] Germination of the Teleutospores of Ravenelia. 147 
resulting in the protrusion of the wall in an oblique direction; 
or the latter character may exist independently of the former. 
A peculiar instance is shown in g. 9, a and 6, where a 
sporidium seems to be almost fully developed laterally, then 
its wall is protruded from near its base into a new tube which 
again branches. It seems that a promycelium bears only one 
tinctly seen by the usual examination with sulphuric acid. 
A Ravenelia Cassizcola only has the germination of teleu- 
di Pores thus far been observed, but these notes serve to in- 
each cell produces a single promycelial 
is illustration of C. senecionis we observe 
€ which bears’ this sporidium tapers gradually to 
sterigma ces “c- Now if we deem both promycelium and 
its in such ea terms, it is difficult to differentiate their lim- 
@ simple — Sorauer? only states that each cell develops 
‘= Promycelium with a sporidium. De Bary defines 
€n, 2te Aufl., II 
eRe: 
ti : Seem ae 
"Pa h Uredineze and Ustilaginez, Pp. 45. 
Morphology and Js 
‘ , p. 244. 
iology of the Fungi, etc., p. 281. 
