MO ULDS—H YPHOMYCE TES 



287 



Fis. 133. — Tubercularia, D ; with Nectria, E ; 

 section, F ; and asci, G. Oard. Chron. 



perfect condition, the Fungi to which it belongs are characterised 

 as imperfect Fungi. 



We might follow the same process with one or other of 

 the species of Fusarium, 

 which is a genus in the 

 present family, the con- 

 idia of which are com- 

 paratively large, fusi- 

 form, and mostly three 

 or five septate. Some 

 of them are, in like 

 manner, only the con- 

 idia of some more 

 highly developed Fun- 

 gus, and often a species 

 of Nectria. The pus- 

 tules are not so com- 

 pact, sometimes effused, 

 seldom with a determinate stroma, and rarely with the hyphae 

 much developed. The genus altogether is much more variable 



than Tubercularia, 

 and not so well con- 

 stituted, so that pos- 

 sibly it will be broken 

 up into more homo- 

 geneous genera in the 

 near future. On the 

 faith of some obser- 

 vations made by Mr. 

 Worthington Smith, 

 the conidia must be 

 regarded as bodies of 

 a much higher order than their analogues in Tubercularia. 

 Not only are they capable of dividing at the joints, and 

 each segment vegetating as a separate unit, buj; these may 

 be converted into chlamy.dospores, or at least have a thickened 

 epispore, capable of hibernation. "When this is confirmed it 

 will go far towards necessitating a revision of the classification, 

 so far as an association with Tubercularia is concerned. 



Fig. 134. — B, section of Tutiercularia ; C, conidia. 

 Gard. Chron. 



