THE TYPICAL MYCELIUM. 5 



fngal ov acropetalous. Again, the hiteml jxjsition of the IjiiiacheiH 

 in question is, as a rule, very uniform ; thosf from tlie inner 

 cells of o<M-numl>ertMl orders all Itranciiing from one (e.g. the 

 left) side, and all those sprinj^in^ from inner cells of even- 

 numhered orders appearing on the opposite (e.>/. right) side of 

 the respective inner cells. When the branching from any given 



Flo. 93.— Mycelial devclopiuent of n Mycomycea (the ordinary lir«ad mould, 

 PfiiiciUitiiii irtauctiiii). 



A, the ripe spon-. U and C, thf mm>-. with ri'«i>«-<>tivvly "iif Jiiid thr<-r ti|)«.ilar i>fl- 



shoots. Ill /> each iif tlicM- hii* <. In 



A' eaoli tulK" has IxTiiiiif diviilcil rtninal 



ci'll (>■■) and an iiiii'T cell ('. 1. wliil>i : ui um,- ui.i 111 i». jj.ni- / »h<iw« 



eath "f the thror liil.cs df\tl"i>t d into a n'u I t<> 1II.\ wliuli in turn haa 



thrnwn i>ut lateral l>rauihi-s ••( the llrst to the ;; ..;ir(i, ?, ;). Ma^'ii. 4^vi. {Alter 



XopJ.) 



cell is confined to a single lateral offshoot the system is terme<l 

 nionopodiaL the main and hninch cell together being tsdled a 

 monopodium. 



Tlie progress of mycelial development in a Phycotni/r'es natu- 

 rally dilters from that just described, inasmuch as no septa are 



