376 



I'LANT .STUDIES 



large one, and contains a great variety of forms. All of 

 them, however, produce sjiores in asci, but the asci arc not 

 always inclosed by an a8C0(;arp. Here belong the common 

 blue mould {l\')ii(illiiim.) found on bread, fruit, etc., in 

 which stage the branching chains of conidia are very con- 

 spicuous (Fig. 243) ; the truffle-fungi, upon whose subter- 



1. showing' tiraiiu 



i-M,nean mycelia a.scoca,rps dcvt'li)}) wliirli a,rc known as 

 "truffles"; tlic l)liicl\ fungi, wliicli form the diseases kiKiwii 

 as " bla(/k knot" i>f the ]ilum and cherry, the " ci'got " (if 

 rye (Fig. 244), and many bbick Avart-like growths n])on the 

 bark of trees; (ithcr fdi'nis causing " wilclies'-brdduis " (al)- 

 normal growths on vai-ious trees), " ])i'arh curl," etc., tlu^ 

 cup-l'ungi (Figs. 245, 240), and the edil)le morels (Fig. 247). 



