50 



b) the ends of tlie former are rather sharply pointed, 

 those of the latter always very obtuse; 



c) the former alone often bears a small stalk which 

 is sometimes bent at the place where it was for- 

 merly joined; 



(/) the contents of the former are much more coarsely 

 granulated, than those of the latter. 



e) moreover the dimensions of the former are smaller; 

 the Fusarium from Spicaria measures 56 — 90 ;" by 

 6—9 fi (Fig. 11, of which the conidium marked 

 with X shows the most common size), the Fusa- 

 rium from Nectria is 76 — 100 /< long by 8 — 12 fi 

 wide. (Fig. 12). 



Both forms are generally 7 septate, but 5 — 9 sep- 

 tate spécimens often occur and germinate as readily. 



2. There are other différences besides those of shape. As 

 has already been pointed out, Fusarium-conidia which 

 originate from Spicaria, always produce Spicaria; Fu- 

 sariumconidia from Nectria on the other hand never 

 yield anything else than Fusarium. (Fig. 13). 



3. Their différent character is also shown by their 

 mode of growth on nutrient média. On a slightly al- 

 kaline médium, colonies developed from Spicaria-Yuiia- 

 rium assume a red colour, those from A'^ec/r/a-Fusa- 

 rium do not. It is évident from the différences enu- 

 merated that this Nectria is not a fructification of 

 Spicaria, the cankerparasite. 



Probably we hâve to do with Nectria striatospora 

 Zimmermann ^) which was found by Zimmermann 

 on cacaotrees at Buitenzorg and which he also considered 

 as probably harmless. 



1) A. Zimmermann. CcntralUlatt fiir Bakleriologie, etc. Bd. VII. 

 Abt. 2, 1901, p. 105. 



