sA^L•llAl;<)^fY(•ET^•:^ in uotami ai. .svstkm. 



lOI 



Of tho iJini'iniiycetes, only a single specieH, Srhrutinia Fufh-e- 

 liana, is of any impoititnce in coniR^ction with the scope of the 

 present Work. The foniilial fructification of this ortranisni jao- 

 (luces '• sweet-rot " in j^rapes, an<l on this account will he fully 

 (Jescrihed in a separate chapter. Of the sub-order S/i/ieeriacfce 

 we shall have three species to consider, namely : Clan'reps 

 purpurea, or the sderotiuni of this 

 orj^anisin, the detection of which in 

 flour and hread is of interest to 

 us ; also ,S)///<f/v7/« I'li/aftwi, ami 

 SjiJiwrella indrmixta. Of the sub- 

 order Perittpuriareit we shall have 

 to make the ac(piaintjince of a 

 number of species belonging to the 

 families I'enicillcic and A.f/ier</i//eo'. 

 These Carpongceo' will be dealt with 

 in the peiudtimate section, wherein 

 an example will be given of the 

 .structure and progressive develop- 

 ment of the carpoascus. 



Now the (•'i/}iiiiotisrf'ii' are char- 

 acterised by the nakedness of the asci, which remain devoid of 

 integument during their entii-e existence. This sub-class (or 

 order) can be ilivi(U'<l into three families. In the Sarcharo- 

 nnfrffrs, which constitute the lowest family and therefore the 

 mo.st sinjply constructed of all Asrumi/refes, the mycelium itself 

 is converted into an ascus. and there is here no sepanition into 

 vegetative and fructificative organs. An example of this is 

 given in Fig. i 22. A distinction between the organs is, however, 

 exhibited in the other two families, the asci being articulated 

 from the mycelium in one of them, namely, the Ej-oasri, wheie 

 thev form lateral olTshoots resting on the mvcelium. Finallv, 

 in tile tliird family, the (r'i/iiini>(i.tn\ which forms the connecting 

 link with the Carjioa^ri, incipient fructification is already found, 

 as well as the intermediate organ, wliicii we have alreadv 

 encountered undi>r the name of ascogone. 



We thus obtain the following scheme of subdivision of the 

 < >id('r ( Is nmoascea' : — 



Kio. 133.— CarUlKT;; Ihittou-Veut, 

 Nu. .•. 



C'fllH taken from a culture ou 

 wi>rt-;;i.-l:itiiie, ami i-xhiliitiiiK the 

 formation df a to 3 asc'JsjKtrfs In 

 eudi. .Ma^n 1000. (,A/tfr llantrii.) 



onler, or 

 Sul>-clas8. 



Gyuiiioascea; 

 (nsci naked) 



'(o) Without ascogone.-i [a^MyceUal cells 



themselves be- 



come Ojil'l 



Kamlly. 



Sacc Jin ro- 

 ll! vcetfs. 



(b) Form nscogoues 



{,i) Special braiuhc.- 

 of tlieniyct'liuni 

 develop into 

 asci .... 2. Exnasci. 

 3. Gymnoasci. 



