56 



except the one found by H art •) on Trinidad and descri- 

 bed by Massée as Nectria Bainii and the pod-disease on 

 Ceylon which after Carruthers reports may be caused 

 by Nectria or one of the Peronosporeae or by both. Nearly 

 ail pods, forwarded to Kew on that occasion, appeared to 

 be attacked by Phytophtora. 



Zehntner'') speaks of „the rare cases where a canker- 

 patch appears at the junction of a pod with the stem and 

 the cankerfungus spreads along the stalk to the pod itself". 



In the Cameroons v. F a b e r ^) never observed an infec- 

 tion of pods by Nectria. 



Hère in Suriname I hâve never fuund a Nectria as a 

 cause of disease in pods, neither hâve I seen the canker- 

 fungus (Spicaria, Fusarium) as a parasite on pods. 



From this survey it is évident, that Carruthers' in- 

 fection-experiments and the few observations ofZehntner 

 are the only foundations for the belief, that canker is a 

 pod-disease; on the contrary, everything seems to show 

 that Carruthers was concerned with the „black rot" 

 (blackening of pods), due to Phytophtora, which is known 

 to attack pods in Ceylon, Java, the West Indies, the Ca- 

 meroons and Suriname and to cause agréât dealof damage 

 in ail thèse countries, except in Java. '*) P e t c h asserts 

 that in cases where the disease had spread from pod to 

 'stem, in stérile chambers Phytophtora developed from 

 pièces of bark, peduncle and pod; if this statement should 

 prove to be correct, it would show, that Phytophtora can 

 attack the stem as well as the pods. 



1) J. H. H art. West Indian Bulletin. Vol. I IDOU, p. 423. 



2) Z e h n t n e r, p. 1. 



3) V. Faber, p. 403: 



4) Z eh n t n e r, p. 4. 



