peoiolu xi'oia v/iiicii l.iiis ari'ocj. 



It ic UGiuQly foiuui that wlioro ^Ln;; nror-ocar-n:' occm- 

 on a hrancii ol tlie stem, tliGy ai^e preueni on practical l;; 

 all tlie leaves of tliis brancli. This fact vn-.z of very r^reat 

 assisttmce in the study of sections of thu buds, or sli lit- 

 ly developed brainchos, since the absence of sporocarp 

 rudiments on the older leaves of a bud, enabled otic th.us to 

 avoid a fruitless search for the less easily reconnizable 

 earliest rudiments, on the youji;"er leaves of the sarnc buci. 



It is tin interest in^^^ fact that of th.e several locali- 

 ties from v/hich mciterial ;/as obtained, th,o plants from 

 those h.abita.ts v.'here the water level lowered consider- 

 ably to' ard the end of the gi-ov/ing season, leaving]; tlie 

 plcints to gro\7 on th.e v/et mud and in th.e air, matured 

 mL'jiy more sporocarps than those v;hich v;ere submerged 

 tliroughout the entire growing season. This appears not to 

 be due to the fact tliat fewer sporocarps arise on the 

 leaves of the submerged pltints, but rather to the fact 

 that the nidiments v;]iicli are formed do not complete tlicir 

 development. At the end of July mtiny yoim-j sporocarps are 

 found on plants from either habitat, wh.il g at the end of 

 September pli'jits i"iat liave been left ouu of the v/ater, 

 by the fall of the water level, have many maturing sporo- 

 carps on them and those Wiat are still submerged have 

 very few. Closer examination of the leaves of the sub- 



